Datasheet > PAM2306FB1YPHC

PAM2306FB1YPHC

更新时间： 2025-09-01 05:59:35

品牌	Logo	应用领域
PAM		/
页数	文件大小	规格书
15页	402K
描述
Dual High-Efficiency PWM Step-Down DC-DC Coverter

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PAM2306FB1YPHC 数据手册

PAM2306

Dual High-Efficiency PWM Step-Down DC-DC Coverter

Features

General Description

The PAM2306 is a dual 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

Efficiency up to 96%

n Only 40μA (Typ. per Channel) Quiescent

Current

n Output Current: Up to 1A per Channel

n Internal Synchronous Rectifier

n 1.5MHz Switching Frequency

n Soft Start

PAM2306 provides

a power-saving Pulse-

Skipping Modulation (PSM) mode to reduce

quiescent current under light load operation.

n Under-Voltage Lockout

n Short Circuit Protection

The PAM2306 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 dual

output voltages are available for 3.3V, 2.8V, 2.5V,

1.8V, 1.5V, 1.2V or adjustable. All versions

employ internal power switch and synchronous

rectifier for 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 0.1ꢀA. Other key features

include under-voltage lockout to prevent deep

battery discharge.

n Thermal Shutdown

n Small 12L WDFN3x3 Package

n Pb-Free Package and RoHS Compliant

Applications

Cellular Phone

Portable Electronics

Personal Information Appliances

n Wireless and DSL Modems

n MP3 Players

Typical Application

OUT2

10ꢀF

OUT2

PAM2306

IN2

C_FW2

100pF

R21

VIN2

LX2

EN2

IN2

4 7ꢀF

NC2

FB2

GND

FB1

R12

GND

R22

IN1

NC1

EN1

LX1

4.7 ꢀF

C_Fw1

VIN1

IN1

R11

100 pF

OUT1

10ꢀF

Rx1

Rx2

OUTx

= V

REF

)

(

Figure 1. Adjustable Voltage Regulator

Power Analog Microelectronics,Inc

www.poweranalog.com

07/2008 Rev 1.0

12 3 4 5 6 7...15

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