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UNISONIC TECHNOLOGIES CO., LTD LR1102
LOW NOISE 150mA LDO REGULATOR
DESCRIPTION
The UTC LR1102 families are CMOS-based voltage regulator ICs with extremely low supply current, high output voltage accuracy, high Ripple Rejection and chip enable circuit. These ICs performance are excellent and with SOT-25 package, thus these ICs are very suitable for hand-held communication equipment.
3 2 1
CMOS IC
5 4
SOT-25
FEATURES
* Ultra-low supply current : Typ. 35A * Standby mode: typ. 0.1A * Low dropout voltage: Typ. 0.2V (IOUT = 100mA) * Excellent Line Regulation: Typ. 0.05%/V * High Ripple Rejection: Typ. 70dB (f = 1kHz) *Pb-free plating product number: LR1102L
ORDERING INFORMATION
Order Number Normal Lead Free Plating LR1102x-xx-AF5-R LR1102xL-xx-AF5-R Note: Pin Assignment: I:VDD O:VOUT Package SOT-25 1 I Pin Assignment 23 4 5 GC N O Packing Tape Reel
G:GND C: CE/CE N: No Connection
LR1102xL-xx-AF5-R (1)Packing Type (2)Package Type (3)Output Voltage Code (4)Lead Plating (5)Active (1) R: Tape Reel (2) AF5: SOT-25 (3) xx: refer to Marking Information (4) L: Lead Free Plating Blank: Pb/Sn , (5) A: Low B: High
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LR1102
MARKING INFORMATION
PACKAGE VOLTAGE CODE 50:5.0V 35:3.5V 33:3.3V 30:3.0V 2J:2.85V 28:2.8V 27:2.7V 25:2.5V 18:1.8V 15:1.5V
For LR1102A-XX 3 2 1
CMOS IC
MARKING
For LR1102B-XX 3 2 1
SOT-25
SL
VOLTAGE CODE
SH
VOLTAGE CODE
4
5
4
5
PIN DESCRIPTION
PIN NO. 1 2 3 4 5 PIN NAME VDD GND CE/CE NC VOUT DESCRIPTION Input Pin Ground Pin Chip Enable Pin No Connection Output Pin
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LR1102
BLOCK DIAGRAM
CMOS IC
LR1102A-XX
1
5
V DD
V OUT
+
VREF CE
3
Current Limit
2
GND
LR1102B-XX
1
5
V DD
V OUT
+
VREF CE
3
Current Limit
2
GND
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LR1102
ABSOLUTE MAXIMUM RATING
CMOS IC
PARAMETER SYMBOL RATINGS UNIT Input Voltage VIN 9 V Input Voltage VCE -0.3 ~ VIN+0.3 V Output Voltage VOUT -0.3 ~ VIN+0.3 V Output Current IOUT 200 mA Power Dissipation PD 250 mW Junction Temperature TJ +125 Operating Temperature TOPR -20 ~ +85 Storage Temperature TSTG -40 ~ +150 Note1.Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. 2.The device is guaranteed to meet performance specification within 0 ~+70 operating temperature range and assured by design from -20 ~+85 .
ELECTRICAL CHARACTERISTICS
LR1102A-XX (TOPR=25 ) PARAMETER SYMBOL Output Voltage VOUT Output Current IOUT Load Regulation VOUT/IOUT Dropout Voltage VDIF Supply Current ISS Supply Current (Standby) IST-BY Line Regulation VOUT/VIN Ripple Rejection Input Voltage Output Voltage Temperature Coefficient Short Current Limit CE Pull-up Resistance CE Input Voltage "H" CE Input Voltage "L" Output Noise LR1102B-XX (TOPR=25 ) PARAMETER Output Voltage Output Current Load Regulation Dropout Voltage Supply Current Supply Current (Standby) Line Regulation Ripple Rejection Input Voltage Output Voltage Temperature Coefficient Short Current Limit CE Pull-down Resistance CE Input Voltage "H" CE Input Voltage "L" Output Noise SYMBOL VOUT IOUT VOUT/IOUT VDIF ISS IST-BY VOUT/VIN RR VIN TEST CONDITIONS MIN TYP VIN=Set VOUT + 1V, 1mAIOUT30mA VOUTx0.98 Refer to the Electrical Characteristics by Output Voltage VIN=Set VOUT + 1V, 1mAIOUT80mA 12 Refer to the Electrical Characteristics by Output Voltage VIN=Set VOUT + 1V 10 VIN= Set VOUT + 1V, VCE=GND 0.1 Set VOUT + 0.5VVIN8V, IOUT=30mA 0.05 f=1kHz, Ripple 0.5Vp-p 70 VIN=Set VOUT + 1V 2 100 2.5 1.5 0.00 BW = 10Hz ~ 100kHz 200 5.0 10.0 VIN 0.25 MAX
VOUTx1.02
RR VIN VOUT/T ILIMIT RPU VCEH VCEL eN
TEST CONDITIONS MIN TYP VIN=Set VOUT + 1V, 1mAIOUT30mA VOUTx0.98 Refer to the Electrical Characteristics by Output Voltage VIN=Set VOUT + 1V, 1mAIOUT80mA 12 Refer to the Electrical Characteristics by Output Voltage VIN=Set VOUT + 1V 10 VIN=VCE=Set VOUT + 1V 0.1 Set VOUT + 0.5VVIN8V, IOUT=30mA 0.05 f=1kHz, Ripple 0.5Vp-p 70 VIN=Set VOUT+ 1V 2 IOUT = 30mA, -20 TOPR85 VOUT=0V 2.5 1.5 0.00 BW = 10Hz ~ 100kHz 100 200 5.0
MAX
VOUTx1.02
UNIT V mV A A %/V dB
40 20 1.0 0.20
8
V ppm/
10.0 VIN 0.25
30
mA M V V Vrms UNIT V mV A A %/V dB
40 20 1.0 0.20
8
V ppm/ mA M V V Vrms 4 of 12
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VOUT/T IOUT = 30mA, -20 TOPR85 ILIMIT RPD VCEH VCEL eN VOUT=0V
30
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LR1102
ELECTRICAL CHARACTERISTICS by OUTPUT VOLTAGE
(TOPR=25 ) PARAMETER Output Current SYMBOL IOUT TEST CONDITIONS 1.5VOUT1.7 VIN -VOUT = 1.0V 1.8VOUT5.0 VOUT=1.5V VOUT=1.6V VOUT=1.7V 1.8VOUT1.9 2.0VOUT2.4 2.5VOUT2.7 2.8VOUT3.3 3.4VOUT5.0 MIN 100 150 TYP
CMOS IC
MAX
Dropout Voltage
VD
IOUT = 100mA
0.20 0.20 0.18 0.18 0.15
0.8 0.7 0.5 0.40 0.35 0.30 0.25 0.22
UNIT mA mA V V V V V V V V
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LR1102
TEST CIRCUITS
CMOS IC
CE 3 3
CE
IN
VDD 1 UTC LR1102-XX 5
VOUT
OUT
IN ISS
VDD 1 UTC LR1102-XX 5
VOUT
OUT
IOUT 2.2F 2 0.1F GND
2.2F 2 0.1F GND
Fig.1 Standard Test Circuit
Fig.2 Supply Current Test Circuit
CE 3 3
CE
IN
VDD 1 UTC LR1102-XX 5
VOUT
OUT IOUT
IN
VDD 1 UTC LR1102-XX 5
VOUT
OUT
P.G
2 GND 1F
2 GND I1 I2
Fig.3 Ripple Rejection, Line Transient Response Test Circuit
Fig.4 Load Transient Response Test Circuit
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LR1102
TYPICAL APPLICATION
CMOS IC
CE
IN + Cap.
V DD
UTC LR1102-XX
VOUT +
OUT
GND
Cap.
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LR1102
TYPICAL CHARACTERISTICS
1. Output Voltage vs. Output Current
LR1102-1.8V 2.0 1.8 TOPR = 25C 3.5 3.0 5.0V LR1102-3.0V
CMOS IC
TOPR = 25 C 4.0V
Output Voltage, VOUT (V)
Output Voltage, VOUT (V)
1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0
3.8V
2.8V
2.5 2.0 1.5 1.0 0.5 VIN = 3.3V
VIN = 2.1V
100
200
300
400
500
0.0
0
100
200
300
400
500
Output Current, IOUT (mA)
Output Current, IOUT (mA)
LR1102-4.0V 5.0 4.5
Output Voltage, VOUT (V)
LR1102-5.0V 6.0 5.0 6.0V 5.0V
Output Voltage, VOUT (V)
4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 100 200 300
7.0V 6.0V
4.0 3.0 1.5 2.0
VIN = 4.3V
VIN = 5.3V 1.0 0.0
400
500
0
100
200
300
400
500
Output Current, IOUT (mA)
Output Current, IOUT (mA)
2. Dropout Voltage vs. Output Current
LR1102-1.8V 1.20 1.00
Dropout Voltage, VD (V) Dropout Voltage, VD (V)
LR1102-3.0V 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 TOPR = 85C 25C
0.80 0.60 0.40 0.20 0.00 -20C TOPR = 85C 25C
-20C
0
50
100
150
0.00
0
50
100
150
Output Current, IOUT (mA)
Output Current, IOUT (mA)
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LR1102
TYPICAL CHARACTERISTICS(Cont.)
LR1102-4.0V 0.40 0.35
Dropout Voltage, VD (V) Dropout Voltage, VD (V)
CMOS IC
LR1102-5.0V 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 -20C TOPR = 85C 25C
0.30 0.25 0.20 0.15 0.10 0.05 0.00 0 50 100 150 -20C TOPR = 85C 25C
0.00
0
50
100
150
Output Current, IOUT (mA)
Output Current, IOUT (mA)
Output Voltage vs. Temperature
LR1102-1.8V 1.90 1.88 VIN = 2.8V IOUT = 30mA 3.10 3.08 VIN = 4.0V IOUT = 30mA LR1102-3.0V
Output Voltage, VOUT (V)
Output Voltage, VOUT (V)
1.86 1.84 1.82 1.80 1.78 1.76 1.74 1.72 1.70 -50 -25 0 25 50 75 100
3.06 3.04 3.02 3.00 2.98 2.96 2.94 2.92 2.90 -50 -25 0 25 50 75 100
Temperature, TOPR ( )
Temperature, TOPR ( )
LR1102-4.0V 4.10 4.08
Output Voltage, VOUT (V)
LR1102-5.0V 5.10 VIN = 5.0V IOUT = 30mA
Output Voltage, VOUT (V)
5.08 5.06 5.04 5.02 5.00 4.98 4.96 4.94 4.92
VIN = 6.0V IOUT = 30mA
4.06 4.04 4.02 4.00 3.98 3.96 3.94 3.92 3.90 -50 -25 0 25 50 75 100
4.90 -50
-25
0
25
50
75
100
Temperature, TOPR ( )
Temperature, TOPR ( )
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LR1102
TYPICAL CHARACTERISTICS(Cont.)
4. Supply Current vs. Input Voltage
LR1102-XX 60 50 TOPR = 25C
CMOS IC
A) Supply Current, ISS (
40 30 20 10 0 -2.0
-1.0
0
1.0
2.0
3.0
4.0
5.0
Input Voltage Differencl, VI(DIFF) (V)
5. Supply Current vs. Temperature
LR1102-XX 50 VIN = VOUT+1V 45
Supply Current, ISS ( A)
40 35 30 25 20 -50
0
50 Temperature, TOPR ( )
100
6. Dropout Voltage vs. Set Output Voltage
LR1102-XX 1.0 0.9 TOPR = 25C IOUT = 150mA IOUT = 100mA IOUT = 50mA IOUT = 30mA IOUT = 10mA
Dropout Voltage, VD (V)
0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 1.0 2.0 3.0
4.0
5.0
Set Output Voltage, VREG (V)
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LR1102
TYPICAL CHARACTERISTICS(Cont.)
7. Ripple Rejection vs. Frequency
LR1102-XX 80 70
Ripple Rejection, RR (dB)
CMOS IC
LR1102-XX 80 70
Ripple Rejection, RR (dB)
VIN = VOUT+1VDC+0.5Vp-p COUT = tantalum 1.0 F
VIN = VOUT+1VDC + 0.5Vp-p COUT = tantalum 2.2 F
60 50 40 30 20 10 0 0.1 1 10 100 IOUT = 1mA IOUT = 30mA
60 50 40 30 20 10 0 0.1 1 10 100 IOUT = 1mA IOUT = 30mA
Frequency, f (kHz)
Frequency, f (kHz)
8. Ripple Rejection vs. Input Voltage (DC bias)
LR1102-3.0V 80 70
Ripple Rejection, RR (dB) Ripple Rejection, RR (dB)
LR1102-3.0V 80 70 60 50 40 30 20 10 3.5 0 3.1 3.2 3.3 Input Voltage, VIN (V) f = 1kHz f = 10kHz 3.4 3.5 f = 400Hz IOUT = 10mA COUT = 2.2 F
60 50 40 30 20 10
IOUT = 1mA COUT = 2.2 F
f = 400Hz f = 1kHz f = 10kHz 3.2 3.3 Input Voltage, VIN (V) 3.4
0 3.1
9. Load Transient Response
LR1102-3.0V 3.4 3.3
Output Voltage, VOUT (V)
Output Current 3.2 3.1 3.0 2.9 2.8 0 2 4 6 8 10 Time, t ( s) 12 14 16 18 20 Output Voltage 50 0 -50 -100 -150
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Output Current, IOUT (mA)
VIN = 4V CIN = Tantalun 1 F COUT =Tantalum 4.7 F
150 100
LR1102
CMOS IC
UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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