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LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
LDO03C SERIES
Single Output
3 A current rating Input voltage range 3-13.8 V Adjustable output voltage 0.59-5.1 V * Optional 3-pin model factory set * Optional 5-pin model factory set with power good option Excellent transient response Power enable (5-pin model) Minimum airflow Small package Termination voltage capacity RoHS Compliant
The LDO03C is a new high density, open frame, non-isolated converter for space sensitive applications. This model has a wide input range of 3-13.8 V and offers a 0.59-5.1 V adjustable output with 3 A capability. Typical efficiency for this model is 90% (5 Vin, 2.5 Vout, 3 A load). The 5-pin version of this voltage device offers the additional features of enable, and with a default wide adjustable ouput voltage range or option of power good.
[ 2 YEAR WARRANTY ]
TUV
File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
Stresses in excess of the maximum ratings can cause permanent damage to the device. Operation of the device is not implied at these or any other conditions in excess of those given in the specification. Exposure to absolute maximum ratings can adversely affect device reliability.
Absolute Maximum Ratings
Characteristic Symbol Min Typ Max Units Notes and Conditions
Input voltage - continuous Enable Voltage Pgood Voltage Operating temperature
Vin (cont) VEn (max) VPgood (max) Top
3.0
13.8 3.3 5.0 3.3 5.0
Vdc V V V V C
Vin(+) - Vin(-) When Vin < 5 V When Vin > 5 V When Vin < 5 V When Vin > 5 V Measured at thermal reference points, See Note 1. See Derating curves
0
70
Storage temperature Output current
Tstorage Iout (max)
-40
125 3
C A
All specifications are typical at nominal input Vin = 5 V and 12 V, full load under any resistive load combination at 25 C, unless otherwise stated.
Input Characteristics
Characteristic Symbol Min Typ Max Units Notes and Conditions
Input voltage - operating Input current - no load Input current - quiescent Input voltage variation
Vin Iin Iin(off) dv/dt
3.0 50 15 1.0
13.8
Vdc mA mA V/ms Vin (min) - Vin (max), enabled Converter disabled Product was tested at 1.2 V/ms. Much higher dv/dt is possible (>10 V/ms)
Turn On/Off
Characteristic Symbol Min Typ Max Units Notes and Conditions
Input voltage - turn on Input voltage - turn off Turn on delay - enabled, then power applied
Vin (on) Vin (off) Tdelay (power)
3.0 2.7 2 3
Vdc Vdc ms
See App Note 186 to adjust this point With the Remote ON/OFF signal asserted, this is the time from when the input voltage reaches the minimum specified operating voltage until Vout is in regulation Vin = Vin(on), then Remote ON/OFF asserted. This is the time taken until Vout is in regulation From 10% to 90%; full resistive load, 0 F capacitance
Turn on delay - power applied, then Remote ON/OFF asserted Rise time
Tdelay (Remote ON/OFF) Trise
2
3
ms
1.5
2
ms
2
File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
Signal Electrical Interface
Characteristic - Signal Name Symbol Min Typ Max Units Notes and Conditions
Remote ON/OFF Control pin open circuit voltage 3.3 V 5V 12 V High level input current Iih Vih 0.61 0.92 2.20 1 A Vdc
See Application Note 186 Iih = 0 A; open circuit voltage See Notes 2 and 3
Current flowing into control pin when pin is pulled high (max. at Vih = 5 V Converter guaranteed on when control pin is greater than Vih (min) Converter guaranteed off when control pin is less than Vil (max) Vil = 0 Vdc
High level input voltage
Vih
0.502
Vdc
Low level input voltage
Vil
0.200
Vdc
Low level input current 3.3 V 5V 12 V
Iil (max)
A 110 166 398
Reliability and Service Life
Characteristic Symbol Min Typ Max Units Notes and Conditions
Mean time between failure
MTBF
10,000,000
Hours
Telcordia SR-332 Issue 2, ground benign, ambient 40 C, Vin = Vin (nom)-Iout = Iout (max)
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File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
Other Specifications
Characteristic Symbol Min Typ Max Units Notes and Conditions
Switching frequency Weight
Fsw
1.5 1.7
MHz g
Environmental Specifications
Characteristic Symbol Min Typ Max Units Notes and Conditions
Thermal performance
Type Parameter
0
Reference
70
Test Level
C
(See Note 1 and individual derating curves)
Notes and Conditions
Air temperature operating Air temperature non-operating
0 C to 70 C -40 C to 125 C
Max. rate of change is 30 degrees per hour while operating and 20 degrees per hour while nonoperating With non-condensing Excluding rain during parts shipment Sinusoidal vibration, 0.5 G (0 to peak) acceleration. Sinusoidal vibration, 1.0 G (0 to peak)
Relative humidity - operating Relative humidity - non-operating Vibration - operating Vibration - non-operating Shock Non-operating square wave Non-operating half sine
80% 100%
Acceleration 40 G, square wave at 200 in/s (508 cm/s); on all six sides Half sine pulse for 70 in/s (178 cm/s) for 2 ms; on all sides except top Half sine pulse for 40 in/s (102 cm/s) for 2 ms; on all sides except top
Operating half sine
4
File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
Safety Agency Approvals
Characteristic
UL/cUL TUV Product Service
Material Ratings
Characteristic Signal Name Notes and Conditions
Flammability rating Material type
UV94V-0 FR4 PCB
Model Numbers
Model Number Input Voltage Output Voltage Output Current (Max.) Efficiency at Full Load Max. Load Regulation
LDO03C-005W05-SJ LDO03C-005W05-HJ LDO03C-005W05-VJ
3.0-13.8 V 3.0-13.8 V 3.0-13.8 V
0.59-5.1 V 0.59-5.1 V 0.59-5.1 V
3A 3A 3A
92% 92% 92%
0.5% 0.5% 0.5%
RoHS Compliance Ordering Information The `J' at the end of the part number indicates that the part is Pb-free (RoHS 6/6 compliant). TSE RoHS 5/6 (non PB-free) compliant versions may be available on special request, please contact your local sales representative for details.
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File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
3.3 V, 5 V, 12 V Model 0.9 V Setpoint Input Characteristics
Characteristic Symbol Min Typ Max Units Notes and Conditions
Input current - operating (Source) (3.3 V) (Sink) (3.3 V) (Source) (5 V) (Sink) (5 V) (Source) (12 V) (Sink) (12 V) Input capacitance - internal filter Input capacitance - external filter Iin Iin Iin Iin Iin Iin Cinput Cbypass 1.07 -0.57 0.70 -0.38 0.32 -0.13 Adc Adc Adc Adc Adc Adc Vin = Vin (nom); Iout = Iout (max)
10 1
F F Recommended customer added capacitance
3.3 V, 5 V, 12 V Model 0.9 V Setpoint Electrical Characteristics - O/P
Characteristic Symbol Min Typ Max Units Notes and Conditions
Nominal set-point voltage Line regulation Load regulation
Vo (nom)
0.891
0.9
0.909 0.3 0.5
Vdc % %
Vin = Vin (nom); Iout = Iout (nom) Iout = Iout (nom); Vin (min) to Vin (max) Vin = Vin (nom); Iout (min) to Iout (max)
Output current - continuous Output current - short circuit
Iout Isc
0 6.0
3.0
Adc Adc Continuous, unit auto recovers See Application Note 186 for more information
Output voltage - noise (3.3 V) mVp-p (5.0 V) mVp-p (12 V) mVp-p 40 40 40 mV pk-pk mV pk-pk mV pk-pk Measurement band width 20 MHz See Application Note 186 for details
3.3 V, 5 V, 12 V Model 0.9 V Setpoint Electrical Charateristics - O/P
Characteristic Symbol Min Typ Max Units Notes and Conditions
Load transient response peak deviation Load transient response recovery External load capacitance
Vdynamic
150
mV
Peak deviation for 50% to 100% step load, di/dt = 10 A/s Settling time to within 1% of output set-point voltage for 50% to 75% step load See Application Note 186 for output capacitance vs. stability
Trecovery
15
s
Cext
0
2000
F
6
File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
3.3 V, 5 V, 12 V Model 0.9 V Setpoint Protection and Control Features
Characteristic Symbol Min Typ Max Units Notes and Conditions
Overcurrent limit inception
Ioc
6.0
Adc
Vo = 90% of Vo (nom)
3.3 V, 5 V, 12 V Model 0.9 V Setpoint Efficiency
Characteristic Symbol Min Typ Max Units Notes and Conditions
Efficiency 3.3 V (source mode) 3.3 V (sink mode) Efficiency 5.0 V (source mode) 5.0 V (sink mode) Efficiency 12 V (source mode) 12 V (sink mode) Efficiency 3.3 V (source mode) 3.3 V (sink mode) Efficiency 5.0 V (source mode) 5.0 V (sink mode) Efficiency 12 V (source mode) 12 V (sink mode)
74.8
76.3 69.9
%
Iout = 100% (max) Vin - Vin (nom)
74.9
76.4 70.6
%
67.6
69.0 58.3
%
80.75
82.4 79.4
%
Iout = 50% (max) Vin - Vin (nom)
78.6
80.2 76.6
%
64.9
66.2 49.4
%
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File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
3.3 V, 5 V, 12 V Model 2.5 V Setpoint Input Characteristics
Characteristic Symbol Min Typ Max Units Notes and Conditions
Input current - operating (Source) (3.3 V) (Sink) (3.3 V) (Source) (5 V) (Sink) (5 V) (Source) (12 V) (Sink) (12 V) Input capacitance - internal filter Input capacitance - external filter Iin Iin Iin Iin Iin Iin Cinput Cbypass 2.5 -2.0 1.7 -1.3 0.7 -0.5 10 1 Adc Adc Adc Adc Adc Adc F F Vin = Vin (nom); Iout = Iout (max); Vo = V0 (nom)
Internal to converter Recommended customer added capacitance
3.3 V, 5 V, 12 V Model 2.5 V Setpoint Electrical Charateristics - O/P
Characteristic Symbol Min Typ Max Units Notes and Conditions
Nominal set-point voltage Line regulation Load regulation
Vo (nom)
2.475
2.500
2.525 0.2 0.5
Vdc % %
Vin = Vin (nom); Iout = Iout (nom) Iout = Iout (nom); Vin (min) to Vin (max) Vin = Vin (nom); Iout (min) to Iout (max)
Output current - continuous Output current - short circuit
Iout Isc
0 6.0
3.0
Adc Apk Continuous, unit auto recovers from short
Output voltage - noise Vrms (3.3 V) mVp-p (5.0 V) mVp-p (12 V) mVp-p
20 25 35
mV pk-pk mV pk-pk mV pk-pk
Measurement band width 20 MHz See Application Note 186 for details
3.3 V, 5 V, 12 V Model 2.5 V Setpoint Electrical Charateristics - O/P
Characteristic Symbol Min Typ Max Units Notes and Conditions
Load transient response park deviation Load transient response - recover External load capacitance
Vdynamic
175
mV
Peak deviation for 50% to 100% step load, di/dt = 10 A/s Settling time to within 1% of output set point voltage for 50% to 75% step load See Application Notes 186 for output capitance values vs. stability
Trecovery
20
s
Cext
0
1000
F
8
File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
3.3 V, 5 V, 12 V Model 2.5 V Setpoint Protection and Control Features
Characteristic Symbol Min Typ Max Units Notes and Conditions
Overcurrent limit inception
Ioc
6.0
Adc
Vo = 90% of Vo (nom)
3.3 V, 5 V, 12 V Model 2.5 V Setpoint Efficiency
Characteristic Symbol Min Typ Max Units Notes and Conditions
Efficiency 3.3 V (source mode) 3.3 V (sink mode) Efficiency 5.0 V (source mode) 5.0 V (sink mode) Efficiency 12 V (source mode) 12 V (sink mode) Efficiency 3.3 V (source mode) 3.3 V (sink mode) Efficiency 5.0 V (source mode) 5.0 V (sink mode) Efficiency 12 V (source mode) 12 V (sink mode)
87.7
89.5 88.7
%
Iout = 100% (max) Vin - Vin (nom)
87.7
89.5 88.8
%
83.2
84.9 83.3
%
90.55
92.4 92.3 91.1 90.7
%
Iout = 50% (max) Vin - Vin (nom)
89.3
%
80.9
82.5 79.3
%
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File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
12 V Model 5 V Setpoint Input Characteristics
Characteristic Symbol Min Typ Max Units Notes and Conditions
Input current - operating
1.4
Adc
Vin = Vin (nom); Iout = Iout (max); Vo = V0 (nom) Internal to converter
Input capacitance - internal filter Input capacitance - external filter
Cinput Cbypass
10 1
F F Recommended customer added capacitance
12 V Model 5 V Setpoint Electrical Characteristics - O/P
Characteristic Symbol Min Typ Max Units Notes and Conditions
Nominal set-point voltage Line regulation Load regulation
Vo (nom)
4.95
5.00
5.05 0.2 0.5
Vdc % %
Vin = Vin (nom); Iout = Iout (nom) Iout = Iout (nom); Vin (min) to Vin (max) Vin = Vin (nom); Iout (min) to Iout (max)
Output current - continuous Output current - short circuit
Iout Isc
0 6.00
3.0
Adc Apk Continuous, unit auto recovers from short Measurement band width 20 MHz See Application Note 186 for details
Output voltage - noise Vrms
mVp-p
50
mV pk-pk
12 V Model 5 V Setpoint Electrical Characteristics - O/P
Characteristic Symbol Min Typ Max Units Notes and Conditions
Load transient response park deviation Load transient response - recover External load capacitance
Vdynamic
235
mV
Peak deviation for 50% to 100% step load, di/dt = 10 A/s Settling time to within 1% of output set point voltage for 50% to 75% step load See Application Notes 186 for output capacitance values vs. stability
Trecovery
15
s
Cext
0
500
F
10
File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
12 V Model 5 V Setpoint Protection and Control Features
Characteristic Symbol Min Typ Max Units Notes and Conditions
Overcurrent limit inception
Ioc
6.0
Adc
Vo = 90% of Vo (nom)
12 V Model 5 V Setpoint Efficiency
Characteristic Symbol Min Typ Max Units Notes and Conditions
Efficiency Efficiency

89.4 87.6
91.2 89.4
% %
Iout = 100% Iout (max), Vin = Vin (nom) Iout = 50% Iout (max), Vin = Vin (nom)
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File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
3.3 V, 5 V and 12 V Model 0.9 V Setpoint
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
3
3
2
1
2 m/s (400 LFM) 1.5 m/s (300 LFM) 1 m/s (200 LFM) 0.5 m/s (100 LFM)
2
1
2 m/s (400 LFM) 1.5 m/s (300 LFM) 1 m/s (200 LFM) 0.5 m/s (100 LFM)
0 30 40 50 60 AMBIENT TEMPERATURE (C) 70
0 30 60 40 50 AMBIENT TEMPERATURE (C) 70
Figure 1: Thermal Derating Curve 3.3 Vin
Figure 2: Thermal Derating Curve 5 Vin
OUTPUT CURRENT (A)
3
EFFICIENCY (%)
1 .8 .6 .4 .2 0
30 70 50 40 60 AMBIENT TEMPERATURE (C)
3V 5V 8V 10 V 12 V
2
1
2 m/s (400 LFM) 1.5 m/s (300 LFM) 1 m/s (200 LFM) 0.5 m/s (100 LFM)
0
0
1
2
3
OUTPUT CURRENT (A)
Figure 4: Efficiency vs. Load
Figure 3: Thermal Derating Curve 12 Vin
Figure 5: Remote On/Off (Channel 1: Output Voltage, Channel 3: Enable)
Figure 6: Typical Output Ripple
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File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
3.3 V, 5 V and 12 V Model 0.9 V Setpoint
Figure 7: Transient Response 100% - 50% (Channel 1: Output Voltage Deviation, Channel 2: Current Step at 1 A/div)
Figure 8: Transient Response 50% - 100% (Channel 1: Output Voltage Deviation, Channel 2: Current Step at 1 A/div)
Figure 9: Short Circuit Characteristic (Channel 1: Output Voltage, Channel 2: Current Step at 5 A/div)
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File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
3.3 V, 5 V and 12 V Model 2.5 V Setpoint
OUTPUT CURRENT (A)
3
OUTPUT CURRENT (A)
3
2
1
2 m/s (400 LFM) 1.5 m/s (300 LFM) 1 m/s (200 LFM) 0.5 m/s (100 LFM)
2
1
2 m/s (400 LFM) 1 m/s (200 LFM) 1.5 m/s (300 LFM) 0.5 m/s (100 LFM)
0 30 40 50 60 70 AMBIENT TEMPERATURE (C)
Figure 10: Thermal Derating Curve 3.3 Vin
0 30
50 40 60 AMBIENT TEMPERATURE (C)
70
Figure 11: Thermal Derating Curve 5 Vin
OUTPUT CURRENT (A)
3
EFFICIENCY (%)
1 .8 .6 .4 .2 0 0 1 2 OUTPUT CURRENT (A) 3
3V 5V 8V 10 V 12 V
2
2 m/s (400 LFM) 1.5 m/s (300 LFM) 1 m/s (200 LFM) 0.5 m/s (100 LFM)
1
0 30 40 50 60 70 AMBIENT TEMPERATURE (C)
Figure 12: Thermal Derating Curve 12 Vin
Figure 13: Efficiency vs. Load
Figure 14: Remote On/Off (Channel 1: Output Voltage, Channel 3: Enable)
Figure 15: Typical Output Ripple
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File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
3.3 V, 5 V and 12 V Model 2.5 V Setpoint
Figure 16: Transient Response 100% - 50% (Channel 1: Output Voltage Deviation, Channel 2: Current Step at 1 A/div)
Figure 17: Transient Response 50% - 100% (Channel 1: Output Voltage Deviation, Channel 2: Current Step at 1 A/div)
Figure 18: Short Circuit Characteristic (Channel 1: Output Voltage, Channel 2: Current Step at 5 A/div)
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File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
3.3 V, 5 V and 12 V Model 5 V Setpoint
OUTPUT CURRENT (A)
3
EFFICIENCY (%)
1 .8 .6 .4 .2 0 0 1 2 3 OUTPUT CURRENT (A)
Figure 20: Efficiency vs. Load
6V 8V 10 V 12 V
2
1
2 m/s (400 LFM) 1.5 m/s (300 LFM) 1 m/s (200 LFM) 0.5 m/s (100 LFM)
0 30 50 60 40 AMBIENT TEMPERATURE (C)
70
Figure 19: Thermal Derating Curve 12 Vin
Figure 21: Remote On/Off (Channel 1: Output Voltage, Channel 3: Enable)
Figure 22: Typical Output Ripple
Figure 23: Transient Response 100% - 50% (Channel 1: Output Voltage Deviation, Channel 2: Current Step at 1 A/div)
Figure 24: Transient Response 50% - 100% (Channel 1: Output Voltage Deviation, Channel 2: Current Step at 1 A/div)
16
File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
3.3 V, 5 V and 12 V Model 5 V Setpoint
Figure 25: Short Circuit Characteristic (Channel 1: Output Voltage, Channel 2: Current Step at 5 A/div)
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File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
Pin Connections Pin No. 1 2 3 4 5 6 Function Remote on/off Vin Common / RTN Vout PG / Trim Mech Pin (Horz/SMT only)
PIN 1 0.610 (15.49)
LDO03C005W05-VJ
0.370 (9.40)
0.212 (5.37)
0.16 (3.94) 0.025 (0.64) SQ. PIN 0.067 (1.70) TYP 0.050 (1.27)
0.051 (1.30)
Dimensions in Inches (mm) Tolerances (unless otherwise specified) 2 Places 0.030 (0.76) 3 Places 0.010 (0.25)
Figure 26: Mechanical Drawing - Vertical
0.370 (9.40) 0.131 (3.33) 0.292 (7.41)
0.610 (15.49)
LDO03C005W05-HJ
0.540 (13.72)
0.051 (1.30)
PIN 1 0.067 (1.70) TYP 0.125 (3.18)
0.025 (0.64) SQ. PIN
Dimensions in Inches (mm) Tolerances (unless otherwise specified) 2 Places 0.030 (0.76) 3 Places 0.010 (0.25)
0.120 (3.05)
Figure 27: Mechanical Drawing - Horizontal
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File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
Pin Connections Pin No. 1 2 3 4 5 6 Function Remote on/off Vin Common / RTN Vout PG / Trim Mech Pin (Horz/SMT only)
0.370 (9.40) 0.131 (3.33) 0.292 (7.41)
0.025 (0.64) TYP
0.610 (15.49)
LDO03C005W05-SJ
0.540 (13.72)
0.051 (1.30)
Dimensions in Inches (mm) Tolerances (unless otherwise specified) 2 Places 0.030 (0.76) 3 Places 0.010 (0.25)
PIN 1 0.067 (1.70) TYP 0.040 (1.02) TYP
Figure 28: Mechanical Drawing - Horizontal Surface Mount
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File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
Note 1
Thermal reference point is defined as the highest temperature measured at any one of the specified thermal reference points. See Application Note 186.
Note 2
The control pin is referenced to Ground.
Note 3
The LDO03C is supplied as standard with positive logic. Control Input pulled low: Unit Disabled Control Input left open: Unit Enabled
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File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006
LDO03C Series | 3 A DC-DC C Class Non-Isolated DC/DC Converter
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Longform Datasheet (c) Artesyn Technologies(R) 2006 The information and specifications contained in this datasheet are believed to be correct at time of publication. However, Artesyn Technologies accepts no responsibility for consequences arising from printing errors or inaccuracies. Specifications are subject to change without notice. No rights under any patent accompany the sale of any such product(s) or information contained herein.
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File Name: lf_LDO03C.pdf Rev: (01) 12 Apr 2006

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