Datasheet > BU90002GWZ_11

BU90002GWZ_11

更新时间： 2022-06-06 13:14:19

品牌	Logo	应用领域
罗姆 - ROHM		稳压器开关
页数	文件大小	规格书
14页	1800K
描述
Output 1.0A High-efficiency Step-down Switching regulators with Built-in Power MOSFET

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BU90002GWZ_11 数据手册

Single-chip Type with Built-in FET Switching Regulator Series

Output 1.0A High-efficiency

Step-down Switching regulators with

Built-in Power MOSFET

BU90002GWZ, BU90003GWZ, BU90004GWZ, BU90005GWZ, BU90006GWZ,

No.11xxxEATxx

●Description

The BU9000XGWZ are a high efficiency 6MHz synchronous step-down switching regulator with ultra low current PFM

mode.

It provides up to 1.0A load current and an input voltage range from 3.0V to 5.5V, optimized for battery powered portable

applications.

BU9000XGWZ has a mode control pin that allows the user to select Forced PWM(Pulse Width Modulation)mode or

PFM(Pulse Frequency Modulation) and PWM auto change mode utilized power save operation at light load current.

●Features

1) 93% peak efficiency

2) 4 to 6 MHz switching frequency

3) Input voltage VIN=2.3V to 5.5V(BU90003～BU90006), VIN=4.0V to 5.5V (BU90002)

4) 45uA typical quiescent current

5) Fast transient response

6) Automatic PFM/PWM operation

7) Forced PWM operation

8) Internal Soft Start

9) Under voltage lockout

10) Over current protection

11) Thermal shutdown

12) Ultra small and low profile WLCSP (1.3mm×0.9mm t=0.40mm MAX) (UCSP35L1 )

●Applications

Cell phones, Smart phones, Portable applications and Micro DC/DC modules, USB accessories

●Operating range

Part No.

Output voltage

3.30V

Input voltage

4.0V to 5.5V

2.3V to 5.5V

BU90002GWZ

BU90003GWZ

BU90004GWZ

BU90005GWZ

1.20V

1.80V

2.50V

BU90006GWZ

3.00V

2.3V to 5.5V

www.rohm.com

Target spec. ver.1.7

1/14

12 3 4 5 6 7...14

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