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AIC1190
Ultra LDO 1A Linear Regulator With Adjustable & Bypass Pin
FEATURES
Guaranteed 1A Output Current. Fast Response in Line/Load Transient Wide Operating Voltage Ranges: 2.3V to 6.0V. 0.1A Shutdown Standby Current Low Quiescent Current: < 60A. Fixed: 1.2V, 1.5V, 1.8V, 2.0V, 2.5V, 2.7V, 3.0V, 3.3V, 3.5V, 3.7V, 3.8V Output Voltage. Adjustable Output Voltage are available from 0.8~4.5V Low Dropout440mV at 1A and 2.8V output voltage. High PSRR70dB at 1KHz. Active Low or High Shutdown Control. Current Limit and Thermal Protection. Available in 2% Output Tolerance. Available in SOT-223 & TO-220 (3 pin) & SOP8 Exposed Pad (Heat Sink) and TO-252 &TO263 (3 & 5 pin) Package.
DESCRIPTION
A low noise, high PSRR and ultra low dropout linear regulator AIC1190 is optimized for low ESR ceramic capacitors operation with 1A continuous current. The AIC1190 offers high precision output voltage of 2% tolerance. Output voltage can also be adjusted for those other than the preset values. A noise bypass pin is available for further reduction of output noise. The bypass pin could be floating if it's unnecessary. At 1A load current and 2.8V output voltage, a 440mV dropout is performed. The quality of low quiescent current and low dropout voltage makes this device ideal for battery power applications. The high ripple rejection and low noise of the AIC1190 provide enhanced performances for critical applications such as cellular phones, and PDAs. In addition, a logic-level shutdown input is included, which reduce supply current to less than 0.1A (typ.) in shutdown mode with fast turn-on time less than 100s. The AIC1190's current limit and thermal protection provide protection against any overload condition that would create excessive junction temperatures.
APPLICATIONS
LCD TV, LCD Monitor, DPF Networking STB DVD, HDD Driver Portable AV Equipment PC Peripherals
TYPICAL APPLICATION CIRCUIT
Fixed Linear Regulator
Analog Integrations Corporation
Adjustable Linear Regulator
DS-1190G-01 123008
Si-Soft Research Center 3A1, No.1, Li-Hsin Rd. I, Science Park, Hsinchu 300, Taiwan, R.O.C. TEL: 886-3-5772500, FAX: 886-3-5772510 www.analog.com.tw
1
AIC1190
TYPICAL APPLICATION CIRCUIT
(Continued)
Adjustable Linear Regulator in SOP-8 Exposed Pad Package
ORDERING INFORMATION
AIC1190-XXXXX XX PACKING TYPE TR: TAPE & REEL TB: TUBE PACKAGE TYPE Y3: SOT-223 E3: TO-252 M3: TO-263 T3: TO-220 P: Lead Free Commercial G: Green Package OUTPUT VOLTAGE 12: 1.2V 15: 1.5V 18: 1.8V 20: 2.0V 25: 2.5V 27: 2.7V 30: 3.0V 33: 3.3V 35: 3.5V 37: 3.7V 38: 3.8V (Of a unit of 0.1V within 0.8~4.5V, additional voltage versions are available on demand) 3 PIN CONFIGURATION SOT-223 (Y3) TOP VIEW 1: VIN 2: GND (TAB) 3: VOUT
1 2 3
TO-252 (E3) TOP VIEW 1: VIN 2: GND (TAB) 3: VOUT
1 2 3
TO-263 (M3) TOP VIEW 1: VIN 2: GND (TAB) 3: VOUT TO-220 (T3) TOP VIEW 1: VIN 2: GND (TAB) 3: VOUT
12 3
1 2 3
Example: AIC1190-18PE3TR 1.8V Version, in TO-252 Lead Free Package & Tape & Reel Packing Type
2
AIC1190
ORDERING INFORMATION
AIC1190XX-XXXXXXX PACKING TYPE TR: TAPE & REEL TB: TUBE PACKAGE TYPE E5: TO-252-5 M5: TO-263-5 P: Lead Free Commercial G: Green Package OUTPUT VOLTAGE 12: 1.2V 15: 1.5V 18: 1.8V 20: 2.0V 25: 2.5V 27: 2.7V 30: 3.0V 33: 3.3V 35: 3.5V 37: 3.7V 38: 3.8V (Of a unit of 0.1V within 0.8~4.5V, additional voltage versions are available on demand) ENABLE TYPE L: Chip Enable Low H: Chip Enable High B: Bypass A: ADJ Example: AIC1190BH-18PM5TR With Bypass Pin, Chip Enable High, 1.8V Version, in TO-263-5 Lead Free Package & Tape & Reel Packing Type
(Continued)
5 PIN CONFIGURATION TO-252-5 (E5) TOP VIEW 1: EN / EN 2: VIN 3: GND (TAB) 4: VOUT 5: BP/ ADJ TO-263-5 (M5) TOP VIEW 1: EN / EN 2: VIN 3: GND (TAB) 4: VOUT 5: BP/ ADJ
12 3 4 5 12345
3
AIC1190
ORDERING INFORMATION
AIC1190X-XXXXXXX PACKING TYPE TR: TAPE & REEL TB: TUBE PACKAGE TYPE R8: SOP-8 G: Green Package OUTPUT VOLTAGE 12: 1.2V 15: 1.5V 18: 1.8V 20: 2.0V 25: 2.5V 27: 2.7V 30: 3.0V 33: 3.3V 35: 3.5V 37: 3.7V 38: 3.8V (Of a unit of 0.1V within 0.8~4.5V, additional voltage versions are available on demand) ENABLE TYPE L: Chip Enable Low H: Chip Enable High
(Continued)
8 PIN CONFIGURATION SOP-8 (R8) Exposed Pad (Heat Sink) TOP VIEW 1: EN / EN 2: VIN 3: VOUT 4: ADJ 5: GND (TAB) 6: BP 7: GND (TAB) 8: GND (TAB)
1 2 3 4 8 7 6 5
Example: AIC1190H-18GR8TR Chip Enable High, 1.8V Version, in SOP-8 Green Package & Tape & Reel Packing Type
Marking
Part No AIC1190-xxPY3 Marking HBxxP Part No AIC1190-xxGY3 Marking HBxxG
xx represents output voltage. (08=0.8V, 09=0.9V, ......., 44=4.4V, 45=4.5V)
4
AIC1190
ABSOLUTE MAXIMUM RATINGS
Input Voltage ....................................................................................................................................... 7V EN Pin Voltage .................................................................................................................................... 7V Noise Bypass Terminal Voltage .......................................................................................................... 7V Operating Temperature Range ............................................................................................ -40C~85C Maximum Junction Temperature .................................................................................................. 150C Storage Temperature Range ............................................................................................. -65C~150C Lead Temperature (Soldering, 10 sec) ......................................................................................... 260C Thermal Resistance (Junction to Case) SOT-223 ............................................................... 15C /W TO-252 .................................................................... 8C /W TO-263 .................................................................... 3C /W TO-220 .................................................................... 3C /W SOP-8 (Exposed Pad*) ......................................... 15C /W Thermal Resistance (Junction to Ambient) SOT-223 ............................................................. 130C /W (Assume no ambient airflow, no heat sink) TO-252 ................................................................ 100C /W TO-263 .................................................................. 60C /W TO-220 .................................................................. 50C /W (Assume no ambient airflow) SOP-8 (Exposed Pad*) ........................................ 60C /W
Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. * The package is placed on a two layers PCB with 2 ounces copper and 2 square inch, connected by 8 vias.
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AIC1190
ELECTRICAL CHARACTERISTICS
(CIN = Cout = 2.2F, CBP = 22nF, VIN = VOUT + 1V, TJ=25C, unless otherwise specified) (Note 1)
PARAMETER Input Voltage Output Voltage Tolerance Continuous Output Current IOUT = 1 mA TEST CONDITIONS SYMBOL VIN VOUT IOUT 0.4V, 1.6V, IQ 60 110 A MIN. 2.3 -2 1.0 TYP. MAX. 6.0 2 UNIT V % A
Quiescent Current
Chip Enable High, VEN IOUT = 0 mA Chip Enable Low, VEN IOUT = 1A Chip Enable High, VEN IOUT = 1A
GND Pin Current
Output Current Limit Dropout Voltage Line Regulation Load Regulation Ripple Rejection (Note 2) Output Noise Voltage Temperature Coefficient Thermal Shutdown Temperature Thermal Shutdown Hysteresis ADJ Pin Specifications ADJ Pin Current ADJ Pin Threshold Reference Voltage Tolerance
RLOAD = 0.1
IOUT = 1A, 0.8V2.8V VIN = VOUT + 1V to 6.0V IOUT = 1mA to 1A f=1KHz, Ripple=0.5Vp-p, CBP = 22nF, f= 10~100KHz TC VIN = VOUT + 1V TSD TSD VLIR VLOR PSRR 1 70 24 50 150 20 VDROP 500 440
VADJ = VREF
IADJ VTH(ADJ) VREF 0.05 0.784
10 0.1 0.8
100 0.2 0.816
nA V V

=
Standby Current
Chip Enable High, VEN
=
Chip Enable Low, VEN

Chip Enable Low, VEN IOUT = 0 mA
0.4V, 1.6V, VIN 0 IGND 60 110 A
ISTBY IIL 1.1
0.1 1.6
0.5
A A
1500 900 700 10 20 mV mV dB Vrms ppm/ mV
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AIC1190
ELECTRICAL CHARACTERISTICS (Continued)
PARAMETER Shutdown Pin Specifications Shutdown Pin Current Shutdown Exit Delay Time Max Output Discharge Resistance to GND during Shutdown Chip Enable Low, Output OFF, VIN = 2.3V to 6.0V Chip Enable High, Output ON, VIN = 2.3V to 6.0V Chip Enable Low, Output ON, VIN = 2.3V to 6.0V Chip Enable High, Output OFF, VIN = 2.3V to 6.0V VEN = VIN or GND IOUT = 30mA IEN t RDSON_ CLMP 0 100 20 100 100 nA S TEST CONDITIONS SYMBOL MIN. TYP. MAX. UNIT
VENH
1.6 V
Shutdown Input Threshold
VENL
0.4
Note 1: Specifications are production tested at T =25 Specifications over the -40C to 85 operating C. C A temperature range are assured by design, characterization and correlation with Statistical Quality Controls (SQC). Note 2: Connecting a 22nF bypass capacitor to BP pin can improve AIC1190 PSRR in High frequency.
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AIC1190
TYPICAL PERFORMANCE CHARACTERISTICS
2.0000
64 62 Supply Current (uA)
Output Voltage (V) 1.9975 1.9950
VIN=VOUT+1 VOUT=2.0V IOUT=90mA
60 58 56
VOUT=2.0V
IOUT=10mA
1.9925
IOUT=1mA
1.9900 1.9875 1.9850
VOUT=3.3V
54 52 50
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Input Voltage (V)
Input Voltage (V)
Fig. 1 Supply Current vs. Input Voltage
65 64 63 Ground Current (uA) 62 61 60 59 58 57 56 55 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Fig. 2 Output Voltage vs. Input Voltage
64 62 60 Quiescent Current (uA) 58 56 54 52 50 48 46 -40 -20 0 20 40 60 80 100 120 140
VIN=VOUT+1 VOUT=2.0V
VIN=VOUT+1 VOUT=2.0V
ILOAD=500mA
ILOAD=100mA
Supply Voltage (V)
Temperature()
Fig. 3 Ground Current
Fig. 4 Quiescent Current vs. Temperature
0.4
0.2 Output Voltage Variation (%)
VIN=VOUT+1 VOUT=2.0V
Input Voltage
0.0
-0.2
Output Voltage
-0.4
-0.6 -40 -20 0 20 40 60 80 100 120 140
Input Current
Temperature ()
Fig. 5 Output Voltage vs. Temperature
Fig.6 Start-up waveform without bypass capacitance
8
AIC1190
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
CIN=COUT=2.2F
CIN=COUT=2.2F
EN
EN
Output Voltage Output Voltage
VIN=4.5V, VOUT=3.3V and IOUT= 10mA VIN=4.5V, VOUT=3.3V and IOUT= 10mA
Fig.7 Shutdown Transient
Fig. 8 Start-up waveform without bypass capacitor
CIN=COUT=2.2F
CIN=COUT=2.2F
Input Voltage Output Voltage Ripple
Output Ripple Output Current Output Current
VIN=2.3~3.3V, VOUT=0.8V, I OUT =1000mA IOUT= 1mA to 1A
Fig. 9 Line Transient
Fig.10 Load Transient Response at VIN=4.3V, VOUT=3.3V
CIN=COUT=2.2F
CIN=COUT=2.2F
Output Voltage Ripple
Output Voltage Ripple
Output Current
Output Current
IOUT= 1mA to 1A
IOUT= 1mA to 1A
Fig.11 Load Transient Response at VIN=2.3V, VOUT=0.8V
Fig.12 Load Transient Response at VIN=3.0V, VOUT=2.0V
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AIC1190
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
1.0 0.8
Feedback Voltage (V)
0.6
0.4
0.2
0.0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
Foldback Current (A)
Fig. 13 Current Fold back (Vout<0.2V)
Fig. 14 PSRR Curve
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AIC1190
BLOCK DIAGRAM
PIN DESCRIPTION
VIN GND VOUT - Power supply input pin. Bypass with a 2.2F capacitor to GND - Ground. - Regulator Output pin. Sources up to 1A.
EN (5 Pin and 8 Pin) - Chip Enable (Active Low). This pin isn't allowed to float. EN (5 Pin and 8 Pin) - Chip Enable (Active High). This pin isn't allowed to float. BP (5 Pin and 8 Pin) - Bypass pin. It can connect to external 22nF capacitor to GND to reduce output noise. The bypass pin could be floating if it's unnecessary (Keep floating cannot pull low and pull high). ADJ (5 Pin and 8 Pin) - The output voltage can either be set by the internal feedback resistors when this pin is grounded, or be set by the external feedback resistors when using a resistive divider.
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AIC1190
APPLICATION INFORMATION
The AIC1190 is a high performance linear regulator that provides low-dropout voltage and low quiescentcurrent. The device is available in an adjustable version and fixed output voltages ranging from 1.2V to 3.8V, and the device can supply loads up to 1A. SHUTDOWN By connecting EN(EN) pin to VIN(ground), the AIC1190 can be shut down to reduce the supply current to 0.1A(typ.). At this operation mode, the output voltage of AIC1190 is equal to 0V. CURRENT LIMIT The AIC1190 includes a current limiter, which monitors and controls the maximum output current. If the output is overloaded or shorted to ground, this can protect the device from being damaged. THERMAL PROTECTION The AIC1190 includes a thermal-limiting circuit, which is designed to protect the device against overload condition. When the junction temperature exceeds TJ=150C, the thermal-limiting circuit turns off the pass transistor and allows the IC to cool. For continuous load condition, maximum rating of junction temperature must not be exceeded. INPUT-OUTPUT CAPACITORS Linear regulators require input and output capacitors to maintain stability. Input capacitor at 2.2F with a 2.2F ceramic output capacitor is recommended. To avoid oscillation, it is recommended to follow the figure of "Region of Stable COUT ESR vs. Load Current" to choose proper capacitor specifications. When choosing the input and output ceramic capacitors, X5R and X7R types are recommended because they retain their capacitance over wider ranges of voltage and temperature than other types. NOISE BYPASS CAPACITOR A 22nF bypass capacitor at BP pin can reduce output voltage noise. The bypass pin can be floating if it's unnecessary. OUTPUT VOLTAGE PROGRAMMING The output voltage of AIC1190 linear regulator can be set by its internal feedback resistors when the ADJ pin is grounded. In addition, the output voltage of AIC1190 linear regulator can be set by the external feedback resistors when connecting a resistive divider R1 and R2. While connecting a resistive divider, VOUT can be calculated as:
R VOUT = 0.8 x 1 + 1 R 2
The resistive divider should sit as close to ADJ pin as possible. POWER DISSIPATION The maximum power dissipation of AIC1190 depends on the thermal resistance of its case and circuit board, the temperature difference between the die junction and ambient air, and the rate of airflow. The rate of temperature rise is greatly affected by the mounting pad configuration on the PCB, the board material, and the ambient temperature. When the IC mounting with good thermal conductivity is used, the junction temperature will be low even when large power dissipation applies. The power dissipation across the device is P = IOUT (VIN-VOUT) The maximum power dissipation is:
PMAX =
(TJ-max - TA ) R JA
(150C), and TA is the ambient
Where TJ-max is the maximum allowable junction temperature temperature suitable in application. As a general rule, the lower temperature is, the better reliability of the device is. So the PCB mounting pad should provide maximum thermal conductivity to maintain low device temperature.
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PHYSICAL DIMENSIONS
SOT-223 PACKAGE OUTLINE DRAWING
AIC1190
13
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L O B M Y S
TO-252-3L PACKAGE OUTLINE DRAWING
AIC1190
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AIC1190
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AIC1190
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AIC1190
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AIC1190
SOP-8 Exposed Pad PACKAGE OUTLINE DRAWING
D
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Note:
Information provided by AIC is believed to be accurate and reliable. However, we cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an AIC product; nor for any infringement of patents or other rights of third parties that may result from its use. We reserve the right to change the circuitry and specifications without notice. Life Support Policy: AIC does not authorize any AIC product for use in life support devices and/or systems. Life support devices or systems are devices or systems which, (I) are intended for surgical implant into the body or (ii) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user.
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