Datasheet > PAM2305DGFADJ

PAM2305DGFADJ

更新时间： 2024-09-22 02:57:27

品牌	Logo	应用领域
PAM		开关光电二极管输出元件
页数	文件大小	规格书
14页	389K
描述
1A Step-Down DC-DC Converter

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PAM2305DGFADJ 数据手册

PAM2305D

1A Step-Down DC-DC Converter

Features

General Description

The PAM2305D is a step-down current-mode,

DC-DC converter. At heavy load, the constant-

frequency PWM control performs excellent

stability and transient response. To ensure the

longest battery life in portable applications, the

PAM2305D provides a power-saving Pulse-

Skipping Modulation (PSM) mode to reduce

quiescent current under light load operation to

save power.

n Efficiency up to 96%

n Only 40μA(TYP.) Quiescent Current

n Output Current: Up to 1A

n Internal Synchronous Rectifier

n 1.5MHz Switching Frequency

n Soft Start

n Under-Voltage Lockout

n Short Circuit Protection

n Thermal Shutdown

n 5-pin Small SOT23-5, DFN2x2 6-Pin and

QFN3x3 16-Pin Packages

n Pb-Free Package

The PAM2305D supports a range of input

voltages from 2.5V to 5.5V, allowing the use of a

single Li+/Li-polymer cell, multiple Alkaline/NiMH

cell, USB, and other standard power sources. The

output voltage is adjustable from 0.6V to the input

voltage. All versions employ internal power switch

and synchronous rectifierfor to minimize external

part count and realize high efficiency. During

shutdown, the input is disconnected from the

output and the shutdown current is less than

0.1μA. Other key features include under-voltage

lockout to prevent deep battery discharge.

Applications

n Cellular Phone

n Portable Electronics

n Wireless Devices

n Cordless Phone

n Computer Peripherals

n Battery Powered Widgets

n Electronic Scales

n Digital Frame

The PAM2305D is available in SOT23-5, DFN2x2

6-Pin and QFN3x3 16-Pin packages.

Typical Application

V_IN

VIN

C_FW

C_IN

10µF

GND

10µF











= 0.6 1+



Power Analog Microelectronics, Inc

www.poweranalog.com

02/2012 Rev1.1

12 3 4 5 6 7...14

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