NOT RECOMMENDED FOR NEW DESIGN Use AP61100
PAM2304
3MHz, 1A STEP-DOWN DC-DC CONVERTER
Description
Pin Assignments
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 PulseSkipping 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 TSOT25 and U-DFN2020-6 (Type C)
packages.
Features
Efficiency up to 95%
Only 40µA (typical) Quiescent Current
Output Current: up to 1A
Internal Synchronous Rectifier
3MHz Switching Frequency
Soft Start
Under Voltage Lockout
Short Circuit Protection
Thermal Shutdown
Small TSOT25 and U-DFN2020-6 (Type C) Packages
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Notes:
Applications
Smart Phone
MID
Portable Electronics
Wireless Devices
Cordless Phone
Computer Peripherals
Battery Powered Widgets
Electronic Scales
Digital Frame
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and
Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain
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