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BU12UB3WG-GTL PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 BU12UB3WG-GTL
기능 FULL CMOS LDO Regulator
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BU12UB3WG-GTL 데이터시트, 핀배열, 회로
Datasheet
CMOS LDO Regulator Series for Portable Equipments
Versatile Package
FULL CMOS LDO Regulator
BUxxUB3WG series
General Description
BUxxUB3WG series is high-performance FULL CMOS
regulator with 360-mA output, which is mounted on
versatile package SSOP5 (2.9 mm × 2.8 mm × 1.25 mm).
It has excellent noise characteristics and load
responsiveness characteristics despite its low circuit
current consumption of 50μA. It is most appropriate for
various applications such as power supplies for logic IC,
RF, and camera modules.ROHM’s.
Features
„ High accuracy detection
„ low current consumption
„ Compatible with small ceramic capacitor (Cin=Co=1.0uF)
„ With built-in output discharge circuit
„ High ripple rejection
„ ON/OFF control of output voltage
„ With built-in over current protection circuit
and thermal shutdown circuit
„ Package SSOP5 is similar to SOT-23-5 (JEDEC)
„ Low dropout voltage
Key Specifications
„ Output voltage:
„ Accuracy output voltage:
„ Low current consumption:
„ Operating temperature range:
1.0V to 2.6V
±1.0% (±25mV)
50μA
-40°C to +85°C
Applications
Battery-powered portable equipment, etc.
Package
SSOP5:
2.90mm x 2.80mm x 1.25mm
Typical Application Circuit
STBY
VIN
STBY
VIN
VOUT
VOUT
GND
GND GND
Fig.1 Application Circuit
Product structure:Silicon monolithic integrated circuit This product is not designed protection against radioactive rays.
www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
1/10
TSZ02201-0RBR0A300010-1-2
25.DEC.2012.Rev.001




BU12UB3WG-GTL pdf, 반도체, 판매, 대치품
BUxxUB3WG series
Datasheet
Electrical Characteristics
(Ta=25℃, VIN=VOUT+1.0V (*3), STBY=VIN, Cin=1.0μF, Co=1.0μF, unless otherwise noted.)
PARAMETER
Overall Device
Output Voltage 1
Operating Current
Operating Current (STBY)
Symbol
MIN.
Limit
TYP.
MAX.
Unit
Conditions
VOUT1
IIN
ISTBY
VOUT×0.99
VOUT-25mV
-
-
VOUT
50
-
VOUT×1.01
VOUT+25mV
90
1.0
V
μA
μA
IOUT=10μA,VOUT≧2.5V
IOUT=10μA,VOUT<2.5V
IOUT=0mA
STBY=0V
Ripple Rejection Ratio
RR 45 70
- dB VRR=-20dBv,fRR=1kHz,IOUT=10mA, VIN=3.6V
- 470 700 mV 1.0V≦VOUT<1.2V(IOUT=300mA)
- 350 500 mV 1.2V≦VOUT<1.5V(IOUT=300mA)
Dropout Voltage
VSAT
-
-
280 380 mV 1.5V≦VOUT<1.7V(IOUT=300mA)
250 320 mV 1.7V≦VOUT<2.1V(IOUT=300mA)
- 220 260 mV 2.1V≦VOUT<2.5V(IOUT=300mA)
- 200 220 mV
Line Regulation
VDL -
2 20 mV
Load Regulation
VDLO
Over-current Protection (OCP)
-
-
25 45 mV
35 55 mV
Limit Current
ILMAX
370
550
- mA
Short Current
ISHORT
50
150 300 mA
Standby Block
Discharge Resistor
RDSC
20
50
80 Ω
STBY Pin Pull-down Current ISTB
0.1
0.9
8.0 μA
ON
STBY Control Voltage
OFF
VSTBH
VSTBL
1.2
-0.3
-
-
5.5 V
0.3 V
Output Voltage 2
VOUT2
1.7
1.8
1.9 V
●This product is not designed for protection against radioactive rays.
(*3) VIN=2.5V for VOUT≦1.5V
(*4) VIN=2.5V to 3.6V for VOUT≦1.5V
2.5V≦VOUT<2.6V(IOUT=300mA)
VIN=VOUT+1.0V to 3.6V(*4), IOUT=10μA
IOUT=0.01mA to 300mA
IOUT=0.01mA to 360mA
Vo=VOUT*0.95
Vo=0V
VIN=3.6V, STBY=0V, VOUT=2.6V
STBY=1.5V
VIN=2.375V to 2.625V
VOUT=1.8V, IOUT=0.01mA to 300mA, Ta=-40~85℃
Block Diagrams
VIN
VIN
1
Cin
GND 2
STBY
STBY
3
VREF
OCP
TSD
STBY
Discharge
Fig. 2 Block Diagrams
VOUT
5
VOUT
Co
Cin・・・1.0μF (Ceramic)
Co ・・・1.0μF (Ceramic)
www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
4/10
TSZ02201-0RBR0A300010-1-2
25.DEC.2012.Rev.001

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BU12UB3WG-GTL 전자부품, 판매, 대치품
BUxxUB3WG series
z Reference data BU18UB3WG (Ta=25ºC unless otherwise specified.)
Datasheet
LOAD TRANSIENT RESPONSE
Trise=Tfall=1us
50mA
IOUT
0mA
LOAD TRANSIENT RESPONSE
Trise=Tfall=1us
300mA
IOUT
0mA
VOUT
10µs/div
Fig. 15
Vout=1.8V
VOUT
10µs/div
Fig. 16
Vout=1.8V
LINE TRANSIENT RESPONSE
Slew Rate = 0.5V/µs
2.9V
VIN
2.3V
1ms/div
Fig. 17
VOUT
Vout=1.8V
Iout=300mA
LINE TRANSIENT RESPONSE
Slew Rate = 0.5V/µs
2.9V
VIN
2.3V
1ms/div
Fig. 18
VOUT
Vout=1.8V
Iout=1mA
LINE TRANSIENT RESPONSE
Slew Rate = 0.5V/µs
3.6V
VIN
2.1V
1ms/div
Fig. 19
VOUT
Vout=1.8V
Iout=300mA
Vout=1.8V
Iout=1mA
VIN RAMP UP, RAMP DOWN RESPONSE
VIN
VOUT
200ms/div
Fig. 20
www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
7/10
TSZ02201-0RBR0A300010-1-2
25.DEC.2012.Rev.001

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