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Teilenummer | BU10UC3WG-TR |
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Beschreibung | FULL CMOS LDO Regulator | |
Hersteller | ROHM Semiconductor | |
Logo | ||
Gesamt 23 Seiten 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
● Reference data BU10UC3WG (Ta=25ºC unless otherwise specified.)
Datasheet
70
60
50
40
30
20
10
0
-40
GROUND PIN CURRENT vs TEMPERATURE
Vout=1.0V
-20 0 Tempe2r0ature[℃]40 60 80
Figure 9.
100
90
80
70
60
50
40
30
20
10
0
2.3
SHUTDOWN CURRENT vs INPUT VOLTAGE
Vout=1.0V
85℃
25℃
-40℃
2.5 2.7 2.9 3.1 3.3 3.5
VIN[V]
Figure 10.
700
600
500
400
300
200
100
0
2.3
CURRENT LIMIT vs INPUT VOLTAGE
Vout=1.0V
85℃
25℃
-40℃
2.5 2.7 2.9 3.1 3.3 3.5
VIN[V]
Figure 11.
POWER-SUPPLY RIPPLE REJECTION vs FREQUENCY
100
90
10mA
80 150mA
70
60
50
40
30
20
10
0
10
100
1000
10000
100000
1000000
Frequency[Hz]
Figure 12.
Trise=Tfall=1us
LOAD TRANSIENT RESPONSE
200mA
IOUT
0mA
LOAD TRANSIENT RESPONSE
Trise=Tfall=1us
IOUT
10mA
0mA
VOUT
10µs/div
Figure 13.
Vout=1.0V
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
6/23
VOUT
10µs/div
Figure 14.
Vout=1.0V
TSZ02201-0RBR0A300110-1-2
02.Jul.2013 Rev.002
6 Page BUxxUC3WG シリーズ
● Reference data BU11UC3WG (Ta=25ºC unless otherwise specified.)
Datasheet
START UP TIME
1.5V
STBY 0V
DISCHARGE TIME
1.5V
STBY 0V
VOUT
20µs/div
Figure 41.
Vout=1.1V
Iout=0mA
Cout=1.0uF
VOUT
40µs/div
Figure 42.
Vout=1.1V
Iout=0mA
Cout=1.0uF
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
12/23
TSZ02201-0RBR0A300110-1-2
02.Jul.2013 Rev.002
12 Page | ||
Seiten | Gesamt 23 Seiten | |
PDF Download | [ BU10UC3WG-TR Schematic.PDF ] |
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