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2.85 TO 12 VOLT FIXED POSITIVE LOCAL VOLTAGE REGULATOR
ISSUE 3 - DECEMBER 2001 DEVICE DESCRIPTION
The ZR78L Series three terminal fixed positive voltage regulators feature internal circuit current limit and thermal shutdown making the devices difficult to destroy. The circuit design allows creation of any custom voltage in the range 2.85 to 12 volts. The devices are available in a small outline surface mount package, ideal for applications where space saving is important, as well as through hole TO92 style packaging. The devices are suited to local voltage regulation applications, where problems could be encountered with distributed single source regulation, as well as more general voltage regulation applications. The ZR78L Series show performance characteristics superior to other local voltage regulators. The initial output voltage is maintained to within 2.5% with a quiescent current of typically 350A. Output voltage change, with input voltage and load current, is much lower than competitive devices. The ZR78L devices are completely stable with no external components. The device will shut down under thermal overload conditions but as the device cools, regulation will restart.
ZR78L SERIES
FEATURES
* * * * * * * * * * *
Small outline SOT223 package SO8 package (3.3V and 5.0V) TO92 package 2.85 to 12 Volt Output current up to 200mA Tight initial tolerance Low quiescent current -55 to 125C temperature range No external components Internal thermal shutdown Internal short circuit current limit
VOLTAGE RANGE ZR78L028 ZR78L03 ZR78L033 ZR78L04 ZR78L048 ZR78L05 ZR78L052 ZR78L057 ZR78L06 ZR78L07 ZR78L08 ZR78L085 ZR78L09 ZR78L10 ZR78L12 2.85V 3.0V 3.3V 4.0V 4.85V 5.0V 5.2V 5.7V 6.0V 7.0V 8.0V 8.5V 9.0V 10.0V 12.0V
4-200
ZR78L SERIES
ABSOLUTE MAXIMUM RATING
Input voltage 20V Output Current(Io) 200mA Operating Temperature -55 to 125C Storage Temperature -65 to 150C Power Dissipation (Tamb=25C) SOT223 2W(Note 3) TO92 600mW S08 780mW(Note 3)
ELECTRICAL CHARACTERISTICS: Notes:
1. The maximum operating input voltage and output current of the device will be governed by the maximum power dissipation of the selected package. Maximum package power dissipation is specified at 25 C and must be linearly derated to zero at Tamb=125C. 2. The following data represents pulse test conditions with junction temperatures as indicated at the initiation of the test. Continuous operation of the devices with the stated conditions might exceed the power dissipation limits of the chosen package.
3. Maximum power dissipation, for the SOT223 and SO8 packages, is calculated assuming that the device is mounted on a PCB measuring 2 inches square. 4. The shut down feature of the device operates if its temperature exceeds its design limit as might occur during external faults, short circuits etc. If the regulator is supplied from an inductive source then a large voltage transient, on the regulator input, can result should the shut down circuit operate. It is advised that a capacitor (1F or greater) should be applied across the regulator input to ensure that the maximum voltage rating of the device is not exceeded under shutdown conditions.
ZR78L028 TEST CONDITIONS (Unless otherwise stated):Tj=25C, IO=100mA, Vin=6.85V
SYMBOL PARAMETER
VO
CONDITIONS
MIN. 2.78
TYP. 2.85
MAX. 2.92 2.964 2.964
UNITS V V V mV mV mV A A A V rms dB V mV/C
Output Voltage
IO=1 to 200mA 2.736 Vin=4.85 to 20V 2.736 IO=1 to 100mA
VO VO lq lq Vn
Line Regulation Load Regulation Quiescent Current
Vin=4.85 to 20V IO=1 to 200mA IO=1 to 100mA
10 5 2 350
40 25 600 100 100
Quiescent Current Change IO=1 to 200mA Vin=4.85 to 20V Output Noise Voltage f=10Hz to 10kHz Vin=5.85 to 18V f=120Hz 48 4.85 IO=5.0mA 0.1 75 62 4.55
Vin /VO Ripple Rejection Vin VO /T
Input Voltage Required To Maintain Regulation Average Temperature Coefficient of VO
=Tj=-55 to 125C
ZR78L SERIES
ZR78L03 TEST CONDITIONS (Unless otherwise stated):Tj=25C, IO=100mA, Vin=7V
SYMBOL PARAMETER
VO
CONDITIONS
MIN. 2.92
TYP. 3.0
MAX. 3.08 3.12 3.12
UNITS V V V mV mV mV A A A V rms dB V mV/C
Output Voltage
IO=1 to 200mA 2.88 Vin=5 to 20V 2.88 IO=1 to 100mA
VO VO lq lq Vn
Line Regulation Load Regulation Quiescent Current
Vin=5 to 20V IO=1 to 200mA IO=1 to 100mA
10 5 2 350
40 25 600 100 100
Quiescent Current Change IO=1 to 200mA Vin=5 to 20V Output Noise Voltage f=10Hz to 10kHz Vin=6 to 18V f=120Hz 48 5 IO=5.0mA 0.1 75 62 4.7
Vin /VO Ripple Rejection Vin VO /T
Input Voltage Required To Maintain Regulation Average Temperature Coefficient of VO
ZR78L033 TEST CONDITIONS (Unless otherwise stated):Tj=25C, IO=100mA, Vin=7.3V
SYMBOL PARAMETER
VO
CONDITIONS IO=1 to 200mA Vin=5.3 to 20V IO=1 to 100mA
MIN. 3.218 3.168 3.168
TYP. 3.3
MAX. 3.382 3.432 3.432
UNITS V V V mV mV mV A A A V rms dB V mV/C
Output Voltage
VO VO lq lq Vn
Line Regulation Load Regulation Quiescent Current
Vin=5.3 to 20V IO=1 to 200mA IO=1 to 100mA
7.5 5 2 350
30 25 600 100 100
Quiescent Current Change IO=1 to 200mA Vin=5.3 to 20V Output Noise Voltage f=10Hz to 10kHz Vin=6.3 to 18V f=120Hz 50 5.3 IO=5.0mA 0.1 50 64 5
Vin /VO Ripple Rejection Vin VO /T
Input Voltage Required To Maintain Regulation Average Temperature Coefficient of VO
=Tj = -55 to 125 C
ZR78L SERIES
ZR78L04 TEST CONDITIONS (Unless otherwise stated):Tj=25C, IO=100mA, Vin=8V
SYMBOL PARAMETER
VO
CONDITIONS
MIN. 3.9
TYP. 4.0
MAX. 4.1 4.16 4.16
UNITS V V V mV mV mV A A A V rms dB V mV/C
Output Voltage
IO=1 to 200mA 3.84 Vin=6 to 20V 3.84 IO=1 to 100mA
VO VO lq lq Vn
Line Regulation Load Regulation Quiescent Current
Vin=6 to 20V IO=1 to 200mA IO=1 to 100mA
10 5 2 350
40 25 600 100 100
Quiescent Current Change IO=1 to 200mA Vin=6 to 20V Output Noise Voltage f=10Hz to 10kHz Vin=7 to 18V f=120Hz 48 6 IO=5.0mA 75 62 5.3 0.1
Vin /VO Ripple Rejection Vin VO /T
Input Voltage Required To Maintain Regulation Average Temperature Coefficient of VO
ZR78L048 TEST CONDITIONS (Unless otherwise stated):Tj=25C, IO=100mA, Vin=8.85V
SYMBOL PARAMETER
VO
CONDITIONS
MIN. 4.729
TYP. 4.85
MAX. 4.971 5.044 5.044
UNITS V V V mV mV mV A A A V rms dB V mV/C
Output Voltage
IO=1 to 200mA 4.656 Vin=6.8 to 20V 4.656 IO=1 to 100mA
VO VO lq lq Vn
Line Regulation Load Regulation Quiescent Current
Vin=6.85 to 20V IO=1 to 200mA IO=1 to 100mA
10 5 2 350
40 25 600 100 100
Quiescent Current Change IO=1 to 200mA Vin=6.85 to 20V Output Noise Voltage f=10Hz to 10kHz Vin=7.85 to 18V f=120Hz 50 6.85 IO=5.0mA 50 64 6.55 0.1
Vin /VO Ripple Rejection Vin VO /T
Input Voltage Required To Maintain Regulation Average Temperature Coefficient of VO
=Tj = -55 to 125C
ZR78L SERIES
ZR78L10TEST CONDITIONS (Unless otherwise stated):Tj=25C, IO=100mA, Vin=14V
SYMBOL PARAMETER
VO
CONDITIONS IO=1 to 200mA Vin=12 to 20V IO=1 to 100mA
MIN. 9.75 9.6 9.6
TYP. 10
MAX. 10.25 10.4 10.4
UNITS V V V mV mV mV A A A V rms dB V mV/C
Output Voltage
VO VO lq lq Vn
Line Regulation Load Regulation Quiescent Current
Vin=12 to 20V IO=1 to 200mA IO=1 to 100mA
12 9 3 350
40 30 600 100 100
Quiescent Current Change IO=1 to 200mA Vin=12 to 20V Output Noise Voltage f=10Hz to 10kHz Vin=13 to 18V f=120Hz 43 12 IO=5.0mA 150 57 11.7 0.25
Vin /VO Ripple Rejection Vin VO /T
Input Voltage Required To Maintain Regulation Average Temperature Coefficient of VO
ZR78L12TEST CONDITIONS (Unless otherwise stated):Tj=25C, IO=100mA, Vin=16V
SYMBOL PARAMETER
VO
CONDITIONS IO=1 to 200mA Vin=14 to 20V IO=1 to 100mA
MIN. 11.7 11.52 11.52
TYP. 12
MAX. 12.3 12.48 12.48
UNITS V V V mV mV mV A A A V rms dB V mV/C
Output Voltage
VO VO lq lq Vn
Line Regulation Load Regulation Quiescent Current
Vin=14 to 20V IO=1 to 200mA IO=1 to 100mA
12 9 3 350
40 30 600 100 100
Quiescent Current Change IO=1 to 200mA Vin=14 to 20V Output Noise Voltage f=10Hz to 10kHz Vin=15 to 18V f=120Hz 43 14 IO=5.0mA 150 57 13.7 0.25
Vin /VO Ripple Rejection Vin VO /T
Input Voltage Required To Maintain Regulation Average Temperature Coefficient of VO
=Tj = -55 to 125 C
ZR78L028 ZR78L03 ZR78L04 ZR78L057 ZR78L09
TYPICAL CHARACTERISTICS
3.01 3.00 5.72
ZR78L SERIES
ZR78L03
5.70
Output Voltage (V)
Output Voltage (V)
2.99 2.98
5.68
ZR78L057
5.66
Io= 5mA Vin= Vo+ 4V
Io= 5mA Vin= Vo+ 4V
4.00 3.98 3.96
2.86 2.85 2.84 2.82
ZR78L028
3.94 -50 -25 0 25 50 75 100 125
ZR78L04
-50 -25 0 25 50 75 100 125
Temperature ( C)
Temperature ( C)
Output Voltage Temperature Coefficient
9.08
Output Voltage Temperature Coefficient
450
ZR78L09
9.04
Io= 5mA Quiescent Current (uA) Vin= Vo+ 4V
400
Io= 0 Vin=Vo+ 4V
Output Voltage (V)
9.00
350
8.96
300
8.92 -50 -25 0 25 50 75
0
250 100 125 -50 -25 0 25 50 75
0
100 125
Temperature ( C)
Temperature ( C)
Output Voltage Temperature Coefficient
500
Quiescent Current vs. Temperature
2.5
Short-Circuit Output Current (mA)
400
2.0
Drop-Out Voltage (V)
Io=200mA
300
1.5 Io=100mA 1.0
200
100
Vo=0 Vin=10V
0.5
0 -50 -25 0 25 50 75
0
0 100 125 -50 -25 0 25 50 75
0
100 125
Temperature ( C)
Temperature ( C)
Peak Output Current vs. Temperature
Drop-Out Voltage vs. Temperature
ZR78L033 ZR78L05 ZR78L06 ZR78L08 ZR78L10
ZR78L SERIES
TYPICAL CHARACTERISTICS
8.02
5.01
ZR78L05
5.00 8.00
Output Voltage (V)
Output Voltage (V)
4.99 4.98
7.98
ZR78L08
7.96
IO = 5mA Vin = VO + 4V
3.30 3.29 3.28
IO = 5mA Vin = VO + 4V
6.00 5.98 5.96
ZR78L033
3.27 -50 -25 0 25 50 75 100 125 5.94
ZR78L06
-50 -25 0 25 50 75 100 125
Temperature ( C)
Temperature ( C)
Output Voltage Temperature Coefficient
10.08
Output Voltage Temperature Coefficient
450
ZR78L10
10.04
Quiescent Current (uA)
IO = 5mA V in = V O + 4V
IO = 0 V in = V O + 4V
400
Output Voltage (V)
10.00
350
9.96
300
9.92 -50 -25 0 25 50 75 100 125
250 -50 -25 0 25 50 75 100 125
Temperature ( C)
Temperature ( C)
Output Voltage Temperature Coefficient
Short-Circuit Output Current (mA)
500 2.5
Quiescent Current v Temperature
400
2.0
IO= 200mA
Drop-Out Voltage (V)
300
1.5
IO= 100mA
1.0
200
100
IO = 0 Vin = 10V
0.5
0 -50 -25 0 25 50 75 100 125
0 -50 -25 0 25 50 75 100 125
Temperature ( C)
Temperature ( C)
Peak Output Current v Temperature
Drop-Out Voltage v Temperature
ZR78L SERIES
ZR78L057 TEST CONDITIONS (Unless otherwise stated):Tj=25C, IO=100mA, Vin=9.7V
SYMBOL PARAMETER
VO
CONDITIONS
MIN. 5.557
Typ. 5.7
MAX. 5.843 5.93 5.93
UNITS V V V mV mV mV A A A V rms dB V mV/C
Output Voltage Vin=7.7 to 20V IO=1 to 100mA
IO=1 to 200mA 5.47 5.47 10 7 2.5 350
VO VO lq lq Vn
Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage
Vin=7.7 to 20V IO=1 to 200mA IO=1 to 100mA IO=1 to 200mA Vin=7.7 to 20V f=10Hz to 10kHz Vin=8.7 to 18V f=120Hz 48 7.7 IO=5.0mA
40 30 600 100 100
90 62 7.4 0.15
Vin /VO Ripple Rejection Vin VO /T
Input Voltage Required To Maintain Regulation Average Temperature Coefficient of VO
ZR78L06 TEST CONDITIONS (Unless otherwise stated):Tj=25C, IO=100mA, Vin=10V
SYMBOL PARAMETER
VO
CONDITIONS IO=1 to 200mA Vin=8 to 20V IO=1 to 100mA
MIN. 5.85 5.76 5.76
TYP. 6
MAX. 6.15 6.24 6.24
UNITS V V V mV mV mV A A A V rms dB V mV/C
Output Voltage
VO VO lq lq Vn
Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage
Vin=8 to 20V IO=1 to 200mA IO=1 to 100mA IO=1 to 200mA Vin=8 to 20V f=10Hz to 10kHz Vin=9 to 18V f=120Hz 48 8 IO=5.0mA
10 7 2.5 350
40 30 600 100 100
90 62 7.7 0.15
Vin /VO Ripple Rejection Vin VO /T
Input Voltage Required To Maintain Regulation Average Temperature Coefficient of VO
=Tj = -55 to 125 C
ZR78L SERIES
ZR78L05 TEST CONDITIONS (Unless otherwise stated):Tj=25C, IO=100mA, Vin=9V
SYMBOL PARAMETER
VO
CONDITIONS IO=1 to 200mA Vin=7 to 20V IO=1 to 100mA
MIN. 4.875 4.8 4.8
TYP. 5
MAX. 5.125 5.2 5.2
UNITS V V V mV mV mV A A A V rms dB V mV/C
Output Voltage
VO VO lq lq Vn
Line Regulation Load Regulation Quiescent Current
Vin=7 to 20V IO=1 to 200mA IO=1 to 100mA
10 5 2 350
40 25 600 100 100
Quiescent Current Change IO=1 to 200mA Vin=7 to 20V Output Noise Voltage f=10Hz to 10kHz Vin=8 to 18V f=120Hz 48 7 IO=5.0mA 0.1 75 62 6.7
Vin /VO Ripple Rejection Vin VO /T
Input Voltage Required To Maintain Regulation Average Temperature Coefficient of VO
ZR78L052 TEST CONDITIONS (Unless otherwise stated):Tj=25C, IO=100mA, Vin=9.2V
SYMBOL PARAMETER
VO
CONDITIONS IO=1 to 200mA Vin=7.2 to 20V IO=1 to 100mA
MIN. 5.070 4.99 4.99
TYP. 5.2
MAX. 5.330 5.41 5.41
UNITS V V V mV mV mV A A A V rms dB V mV/C
Output Voltage
VO VO lq lq Vn
Line Regulation Load Regulation Quiescent Current
Vin=7.2 to 20V IO=1 to 200mA IO=1 to 100mA
10 5 2 350
40 25 600 100 100
Quiescent Current Change IO=1 to 200mA Vin=7.2 to 20V Output Noise Voltage f=10Hz to 10kHz Vin=8.2 to 18V f=120Hz 48 7.2 IO=5.0mA 0.1 75 62 6.9
Vin /VO Ripple Rejection Vin VO /T
Input Voltage Required To Maintain Regulation Average Temperature Coefficient of VO
=Tj = -55 to 125 C
ZR78L SERIES
ZR78L085 TEST CONDITIONS (Unless otherwise stated):Tj=25C, IO=100mA, Vin=12.5V
SYMBOL PARAMETER
VO
CONDITIONS IO=1 to 200mA Vin=10 to 20V IO=1 to 100mA
MIN. 8.288 8.16 8.16
TYP. 8.5
MAX. 8.712 8.84 8.84
UNITS V V V mV mV mV A A A V rms dB V mV/C
Output Voltage
VO VO lq lq Vn
Line Regulation Load Regulation Quiescent Current
Vin=10.5 to 20V IO=1 to 200mA IO=1 to 100mA
11 8 3 350
40 30 600 100 100
Quiescent Current Change IO=1 to 200mA Vin=10.5 to 20V Output Noise Voltage f=10Hz to 10kHz Vin=11.5 to 18V f=120Hz 44 10.5 IO=5.0mA 115 60 10.2 0.25
Vin /VO Ripple Rejection Vin VO /T
Input Voltage Required To Maintain Regulation Average Temperature Coefficient of VO
ZR78L09TEST CONDITIONS (Unless otherwise stated):Tj=25C, IO=100mA, Vin=13V
SYMBOL PARAMETER
VO
CONDITIONS
MIN. 8.775
TYP. 9.0
MAX. 9.225 9.36 9.36
UNITS V V V mV mV mV A A A V rms dB V mV/C
Output Voltage
IO=1 to 200mA 8.64 Vin=11 to 20V 8.64 IO=1 to 100mA
VO VO lq lq Vn
Line Regulation Load Regulation Quiescent Current
Vin=11 to 20V IO=1 to 200mA IO=1 to 100mA
12 9 3 350
40 30 600 100 100
Quiescent Current Change IO=1 to 200mA Vin=11 to 20V Output Noise Voltage f=10Hz to 10kHz Vin=12 to 18V f=120Hz 43 11 IO=5.0mA 150 57 10.7 0.25
Vin /VO Ripple Rejection Vin VO /T
Input Voltage Required To Maintain Regulation Average Temperature Coefficient of VO
=Tj = -55 to 125C
ZR78L SERIES
TYPICAL CHARACTERISTICS
10
90
ZR78L028 ZR78L03 ZR78L04 ZR78L057 ZR78L09
Output Impedance (Ohms)
Io = 100mA VIN = VOUT+ 4V
80
Ripple Rejection (dB)
70 60 50 40 30 20 10
ZR78L028 ZR78L03 ZR78L04 ZR78L057 ZR78L09
Io = 100mA Vin = Vout + 3V Vin = 200mV p/p
1.0
0.1
ZR78L09 ZR78L057 ZR78L04 ZR78L03 ZR78L028
0.01 100 1K 10K 100K
0 10
100
1K
10K
100K
Frequency (Hz)
Ripple Frequency (Hz)
Output Impedance vs. Frequency
Output Voltage Deviation (V)
Ripple Rejection vs. Ripple Frequency
INPUT VOLTAGE
LOAD CURRENT
(V + 9) O
100 mA
O
+0.5
OUTPUT VOLTAGE DEVIATION
Output Voltage Deviation (V)
(V + 4)
0
+0.5
OUTPUT VOLTAGE DEVIATION
0
0
-0.5
-1.0 0
IO = 100mA COUT = 0 dVIN /dt = 5V/s 10 20 30 40 50
-0.5
-1.0 0
V IN = Vo+ 4V COUT= 0 dIo /dt = 1A/s 10 20 30 40 50
Time (us)
Time (us)
Line Transient Response
160 140
D=1
Load Transient Response
48 40 32
D=0.5 D=1
Thermal Resistance (C/W)
Thermal Resistance (C/W)
TO92 PACKAGE
120 100
D=0.5
SOT223 PACKAGE
80 60 40 20 0 0
D=0.2 D=0.1 D=0.05 D=0
24 16 8 0
D=0.2 D=0.1 D=0.05 D=0
1m
10m 100m
1
10
1m
10m 100m
1
10
Pulse Width (s)
Pulse Width(s)
Thermal Resistance v Pulse Width
Thermal Resistance v Pulse Width
ZR78L SERIES
10 90
IO =100mA VIN =VOUT+4V
ZR78L033 ZR78L05 ZR78L06 ZR78L08 ZR78L10
TYPICAL CHARACTERISTICS
Output Impedance (Ohms)
80
Io = 100mA Vin = Vout + 3V Vin = 200mV p/p
Ripple Rejection (dB)
70 60 50
ZR78L033
1.0
0.1
ZR78L10 ZR78L08 ZR78L06 ZR78L05 ZR78L033
40 30 20 10
ZR78L05 ZR78L06 ZR78L08 ZR78L10
0.01 100 1K 10K 100K
0 10
100
1K
10K
100K
Frequency (Hz)
Ripple Frequency (Hz)
Output Impedance v Frequency
Ripple Rejection v Ripple Frequency
Output Voltage Deviation (V)
Output Voltage Deviation (V)
INPUT VOLTAGE
LOAD CURRENT
(Vo + 9)
100 mA
(Vo+ 4)
0
+0.5
OUTPUT VOLTAGE DEVIATION
+0.5
OUTPUT VOLTAGE DEVIATION
0
0
-0.5
Io=100mA COUT=0 dVIN/dt =5V/us
-0.5
V IN= V O 4V + COUT 0 = dIO /dt =1A/s
-1.0 0
-1.0 20 30 40 50 0
10
10
20
30
40
50
Time (s)
Time (s)
Line Transient Response
160
D=1
Load Transient Response
48
140
TO92 PACKAGE
Thermal Resistance ( C/W)
Thermal Resistance ( C/W)
40 32 24 16 8 0
SOT223 PACKAGE
120 100
D=0.5
80 60 40 20 0
D=0.2 D=0.1 D=0.05 D=0
1ms
10
100
1s
10
1ms
10
100
1s
10
Pulse Width
Pulse Width
Thermal Resistance v Pulse Width
Thermal Resistance v Pulse Width
ZR78L SERIES
ZR78L07 TEST CONDITIONS (Unless otherwise stated):Tj=25C, IO=100mA, Vin=11V
SYMBOL PARAMETER
VO
CONDITIONS IO=1 to 200mA Vin=9 to 20V IO=1 to 100mA
MIN. 6.825 6.72 6.72
TYP. 7
MAX. 7.175 7.28 7.28
UNITS V V V mV mV mV A A A V rms dB V mV/C
Output Voltage
VO VO lq lq Vn
Line Regulation Load Regulation Quiescent Current
Vin=9 to 20V IO=1 to 200mA IO=1 to 100mA
10 5 2 350
40 25 600 100 100
Quiescent Current Change IO=1 to 200mA Vin=9 to 20V Output Noise Voltage f=10Hz to 10kHz Vin=10 to 18V f=120Hz 48 9 IO=5.0mA 75 62 8.7 0.1
Vin /VO Ripple Rejection Vin VO /T
Input Voltage Required To Maintain Regulation Average Temperature Coefficient of VO
ZR78L08 TEST CONDITIONS (Unless otherwise stated):Tj=25C, IO=100mA, Vin=12V
SYMBOL PARAMETER
VO
CONDITIONS IO=1 to 200mA Vin=10 to 20V IO=1 to 100mA
MIN. 7.8 7.68 7.68
TYP. 8
MAX. 8.2 8.32 8.32
UNITS V V V mV mV mV A A A V rms dB V mV/C
Output Voltage
VO VO lq lq Vn
Line Regulation Load Regulation Quiescent Current
Vin=10 to 20V IO=1 to 200mA IO=1 to 100mA
11 8 3 350
40 30 600 100 100
Quiescent Current Change IO=1 to 200mA Vin=10 to 20V Output Noise Voltage f=10Hz to 10kHz Vin=11 to 18V f=120Hz 44 10 IO=5.0mA 115 60 9.7 0.25
Vin /VO Ripple Rejection Vin VO /T
Input Voltage Required To Maintain Regulation Average Temperature Coefficient of VO
=Tj = -55 to 125C
ZR78L SERIES
TYPICAL CHARACTERISTICS
4.90 4.85
ZR78L048
ZR78L048 ZR78L052 ZR78L07 ZR78L085 ZR78L12
7.10
ZR78L07
7.00
Output Voltage (V)
4.80 5.25
ZR78L052 Io = 10mA Vin = Vout + 4v
Output Voltage (V)
6.90 8.55 8.50 8.45 -50 -25
Io = 10mA Vin = Vout + 4v
ZR78L085
5.20 5.15 -50 -25 0 25 50 75 100125
0 25 50 75 100125
Temperature (C)
Temperature (C)
Output Voltage Temperature Coefficient
Output Voltage Temperature Coefficient
500 12.10 12.05 12.00 11.95 11.90 -50 -25 0 25 50 75 100125
ZR78L12
Quiescent Current (uA)
Io = 10mA Vin = Vout + 4v
Io=0 Vin=Vout+4v
450
Output Voltage (V)
400
350
300 -50 -25 0 25 50 75 100 125
Temperature (C)
Temperature (C)
Output Voltage Temperature Coefficient
Quiescent Current v Temperature
500
2.5
Io= 200mA
Short-circuit Output Current (mA)
400
2.0
Drop-Out Voltage (V)
Io= 100mA
300 200 100 0 -50 -25 0 25 50 75 100 125
1.5 1.0 0.5 0 -50 -25 0 25 50 75 100125
Vo= 0 Vin= 10v
Temperature (C)
Temperature (C)
Peak Output Current v Temperature
Drop-Out Votlage v Temperature
ZR78L SERIES
CONNECTION DIAGRAMS
SO8 Package Suffix - N8 SOT223 Package Suffix - G
Top View
Top View - Connect pin 4 to pin 2 or leave pin 4 electrically isolated
TO92
Package Suffix - C
OPTIONS
Voltage 2.85V 3.0V 3.3V Voltage Options 028 03 033 04 048 05 052 057 06 07 08 085 09 10 12 TO92 SOT223 SO8 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
Bottom View
4.0V 4.8V 5.0V 5.2V 5.7V 6.0V 7.0V 8.0V 8.5V 9.0V 10.0V 12.0V
ORDERING INFORMATION
Part No ZR78L s C ZR78L s G ZR78L s N8 s Voltage Option
eg 3V device in TO92 package part number ZR78L03C part marked ZR78L03 eg 12V device in SOT223 package part number ZR78L12G part marked ZR78L12 eg 5V device in SO8 package part number ZR78L05N8 part marked ZR78L05
Package TO92 SOT223 SO8
Partmark ZR78L s ZR78L s ZR78L s
4-217
ZR78L048 ZR78L052 ZR78L07 ZR78L085 ZR78L12
TYPICAL CHARACTERISTICS
ZR78L SERIES
10
Output Impedance (Ohms)
Io= 100mA Vin= Vout+4v
90 80
Io= 100mA Vin= Vout+4v Vin= 200mV Pk/Pk ZR78L052 ZR78L048
Open Loop Gain (dB)
70 60 50 40 30 20 10
1
ZR78L07 ZR78L085 ZR78L12
0.1
ZR78L12 ZR78L085 ZR78L07 ZR78L052 ZR78L048
0.01 10
100
1k
10k
100k
0 100
1k
10k
100k
1M
Frequency (Hz)
Frequency (Hz)
Output Impedance v Frequency
Ripple Rejection v Ripple Frequency
Input Voltage
Vo+9
100mA
Load Current
Output Voltage Deviation (V)
Vo+4 +0.2
Output Voltage Deviation
Output Voltage Deviation (V)
0 +0.2 0 -0.2
Vin= Vout+4v Cout= 0 dIo/dt= 1A/us
Output Voltage Deviation
0 -0.2
Io= 100mA Cout= 0 dVin/dt= 5v/us
0
10
20
30
40
50
0
10
20
30
40
50
Time (s)
Time (us)
Line Transient Response
Load Transient Response
Thermal Resistance (C/W)
160 140 120 100
D=1
48
D=1
TO92 PACKAGE
Thermal Resistance (C/W)
40 32 24 16
SOT223 PACKAGE
D=0.5
80 60 40 20 0 1m 10m 100m 1 10
D=0.2
D=0.5
D=0.2 D=0.1 D=0.05 D=0
D=0.1 D=0.05 D=0
8 0
1m
10m 100m 1
10
Pulse Width (s)
Pulse Width (s)
Thermal Resistance v Pulse Width
Thermal Resistance v Pulse Width
ZR78L SERIES
THERMAL CHARACTERISTICS
160 140 120 100 80 60 40 20
D=0.2 D=0.1 D=0 D=0.05 D=0.5 SO8 PACKAGE
Maximum Power Dissipation (W)
Thermal Resistance (C/W)
D=1
2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0
SOT223
SO8
TO92
0 100 1m
10m 100m 1
10
100
-50 -25
0 25 50 75 100125
Pulse Width (s)
Ambient Temperature (C)
Thermal Resistance v Pulse Width
Power dissipation Derating
ZR78L SERIES
SCHEMATIC DIAGRAM
Q14 Q25 Q18 Q19 Q13 Q10 Q8 Q4 Q12 R6 Q20 Q11 R7 R3 Q21 Q5 Q6 Q7 Q16 Q17 R14 Q9
Vin
Vout
R4
R5 Q1 R1 Q3
C1
R9
R13 R2
Gnd
APPLICATIONS
Fixed Output Regulator Input ZR78L*** Output Input ZR78L*** Iq Gnd Vo= Vreg + (Vreg/R1 + Iq)R2 Current Regulator Input ZR78L*** Iq Io= (Vreg/R1) + Iq R1 Output R2 Gnd R1 Adjustable Output Regulator Output

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