Diodes PAM2304 User Manual

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PAM2304
Document number: DSxxxxx Rev. 1 - 1
1 of 14
www.diodes.com
November 2012
© Diodes Incorporated
PAM2304
A
Product Line o
f
Diodes Incorporated
3MHz, 1A STEP-DOWN DC-DC CONVERTER
Description
The PAM2304 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 PAM2304 provides a power-saving Pulse-
Skipping Modulation (PSM) mode to reduce quiescent current under
light load operation to save power.
The PAM2304 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 rectifier 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
1µA. Other key features include under-voltage lockout to prevent
deep battery discharge.
The PAM2304 is available in TSOT23-5, TDFN22-8 and TDFN22-6
packages.
Features
Efficiency up to 95%
Only 40mA (typ) Quiescent Current
Output Current: Up to 1A
Internal Synchronous Rectifier
3MHz Switching Frequency
Soft Start
Under-Voltage Lockout
Short Circuit Protection
Thermal Shutdown
Small TSOT23-5, TDFN22-8 and TDFN22-6 Packages
RoHS Pass and Green Package
Applications
Smart Phone
MID
Portable Electronics
Wireless Devices
Cordless Phone
Computer Peripherals
Battery Powered Widgets
Electronic Scales
Digital Frame
Pin Assignments
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Summary of Contents

Page 1 - © Diodes Incorporated

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Page 2

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Page 3

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Page 4

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Page 5

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Page 6

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Page 7

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Page 8 - Application Information

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Page 9 - INQH)ON(DS

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Page 10 - PCB Layout Check List

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Page 11

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Page 12

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Page 13

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Page 14 - Diodes Incorporated

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