Diodes PAM2306D - Manual

PAM2306D
Document number: DSxxxxx Rev. 1 - 1
1 of 12
www.diodes.com
November 2012
© Diodes Incorporated
PAM2306D
A Product Line of
Diodes Incorporated
DUAL HIGH-EFFICIENCY PWM STEP-DOWN DC-DC CONVERTER
Description
The PAM2306D 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 PAM2306D provides a
powersaving Pulse-Skipping Modulation (PSM) mode to reduce
quiescent cur rent under light load operation.
The PAM2306D 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 adjustment. 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
0.1µA. Other key features include under-voltage lockout to prevent
deep battery discharge.
Features
 Efficiency up to 96%
 Only 40μA (Typ per Channel) Quiescent Current
 Output Current: Up to 1A per Channel
 Internal Synchronous Rectifier
 1.5MHz Switching Frequency
 Soft-Start
 Under-Voltage
Lockout
 Short Circuit Protection
 Thermal Shutdown
 Small 12L WDFN3x3 Package
 Pb-Free and RoHS Compliant
Pin Assignments
Applications
 Cellular Phone
 Portable Electronics
 Personal Information Appliances
 Wireless and DSL Modems
 MP3 Players
Typical Applications Circuit
V V
2 Rx
1 Rx
1 REF OUT 




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