Datasheet > GRM21BB31A475KA74

GRM21BB31A475KA74

更新时间： 2024-11-24 12:46:23

品牌	Logo	应用领域
松下 - PANASONIC		稳压器
页数	文件大小	规格书
48页	862K
描述
600mA Synchronous DC-DC Step Down Regulator (1ch) 300mA LDO Regulator (4ch) Multi Power Supply (High Efficiency Power LSI)

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AN30183A

600mA Synchronous DC-DC Step Down Regulator (1ch)

300mA LDO Regulator (4ch)

Multi Power Supply (High Efficiency Power LSI)

FEATURES

DESCRIPTION

z High-Speed Response DC-DC Step Down Regulator

Circuit that employs Hysteretic System

z DC-DC Step Down Regulator : 1-ch

Input voltage Range VBAT :2.5V to 5.5V

DVDD : 1.7V to 3.0V

AN30183A is a multi power supply LSI which has High-

Speed Response DC-DC Step Down Regulators (1-ch)

and LDO Regulators (4-ch).

By this DC-DC system, when load current charges

suddenly, it responds at high speed and minimizes the

changes of output voltage.

Output voltage Range 0.8 V to 2.4 V

Up to 600 mA Output Current

Since it is possible to use capacitors with small

capacitance and it is unnecessary to add external parts

for system phase compensation, this IC realizes

downsizing of set and reducing in the number of external

parts.

The output DC of each power supply is variable by I²C

control.

z LDO Regulator : 4-ch

Input voltage Range VBAT :2.5V to 5.5V

DVDD : 1.7V to 3.0V

Output voltage Range 1.0 V to 3.3 V

Up to 300 mA Output Current

z I²C control (2-slave address selectable)

z 20 pin Wafer Level Chip Size Package (WLCSP)

(Size : 1.56 mm × 2.06 mm, 0.4 mm Pitch)

APPLICATIONS

Mobile phone, Portable appliance, etc

SIMPLIFIED APPLICATION

EFFICIENCY CURVE

DDVBAT1

VIN2

4.7µF

DVDD

4.7µF

AN30183A DCDC1 Efficiency

0.1µF

4.7µF

100

SDA

SCL

DCDCOUT1

LX1

FB1

DDGND1

1µH

ASEL

4.7µF

REGCNT

AN30183A

VLDO3

VLDO4

VLDO1

VLDO2

Vout=0.8V

1µF

Vout=1.2V

Vout=1.8V

Vout=2.4V

RESETLDO1ON AGND

VREG REF

1µF

100

Load Current [mA]

1000

Notes) This application circuit is an example. The operation

of mass production set is not guaranteed. You should

perform enough evaluation and verification on the

design of mass production set. You are fully

responsible for the incorporation of the above

application circuit and information in the design of

your equipment.

Condition )

DDVBAT1 = DDVBAT2 = VB = VIN2 = 3.7V

Lo = 1.0 µH, Cout = 4.7 µF

Ver. AEB

Publication date: October 2012

12 3 4 5 6 7...48

中文翻译

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与GRM21BB31A475KA74相关器件

型号	品牌	获取价格	描述	数据表
GRM21BB31A475KA74#	MURATA	获取价格	民用设备,工业设备,移动设备,植入式以外的医疗器械设备 [GHTF A/B/C],汽车[信
GRM21BB31A475KA74L	PANASONIC	获取价格	VIN = 2.9V to 5.5V 2ch,0.8A General-purpose High Efficiency Power LSI
GRM21BB31A475MA74#	MURATA	获取价格	民用设备,工业设备,移动设备,植入式以外的医疗器械设备 [GHTF A/B/C],汽车[信
GRM21BB31C106KE15	MURATA	获取价格	Chip Multilayer Ceramic Capacitors for General Purpose
GRM21BB31C106KE15#	MURATA	获取价格	民用设备,工业设备,移动设备,植入式以外的医疗器械设备 [GHTF A/B/C],汽车[信
GRM21BB31C106ME15	MURATA	获取价格	Chip Multilayer Ceramic Capacitors for General Purpose
GRM21BB31C106ME15#	MURATA	获取价格	民用设备,工业设备,移动设备,植入式以外的医疗器械设备 [GHTF A/B/C],汽车[信
GRM21BB31C225KA12	MURATA	获取价格	Chip Multilayer Ceramic Capacitors for General Purpose
GRM21BB31C225KA12#	MURATA	获取价格	民用设备,工业设备,移动设备,植入式以外的医疗器械设备 [GHTF A/B/C],汽车[信
GRM21BB31C225KA12K	MURATA	获取价格	Chip Multilayer Ceramic Capacitors for General Purpose

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