|
ROHM Semiconductor |
Datasheet
CMOS LDO Regulator Series for Portable Equipments
Versatile Package
FULL CMOS LDO Regulator
BUxxUC3WG series
●General Description
BUxxUC3WG series is high-performance FULL CMOS
regulator with 300-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 4.0V
±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
Figure 1. Application Circuit
○Product structure:Silicon monolithic integrated circuit
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product is not designed for protection against radioactive rays
1/23
TSZ02201-0RBR0A300110-1-2
02.Jul.2013 Rev.002
BUxxUC3WG series
●Connection Diagram
SSOP5
VOUT
N.C.
Datasheet
Marking
Lot. No
VIN GND STBY
TOP VIEW
●Pin Descriptions
PIN No.
1
2
3
4
5
Symbol
VIN
GND
STBY
N.C.
VOUT
SSOP5
Function
Power Supply Voltage
Grounding
ON/OFF control of output voltage
(High: ON, Low: OFF)
Unconnected Terminal
Output Voltage
●Ordering Information
B U x x U C3 W G -
x
x
Part
Number
SSOP5
Output Voltage
10 : 1.0V
40 : 4.0V
Low Dropout Voltage
Maximum Output Current
300mA
with switch
Package
G : SSOP5
2.9±0.2
54
4°
+6°
−4°
Packageing and forming specification
Embossed tape and reel
TR : The pin number 1 is the upper right
TL : The pin number 1 is the lower left
123
0.13
+0.05
−0.03
+0.05
0.42 −0.04
0.95
0.1
(Unit : mm)
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
2/23
TSZ02201-0RBR0A300110-1-2
02.Jul.2013 Rev.002
|