New Product Dual High-Efficiency Buck DC

Issue Number │001
October 2014
New Product
Announcement
PAM2322AGEAR
Dual High-Efficiency Buck DC-DC Converter
The PAM2322AGEAR is a dual
channel current-mode, buck
DC-DC converter.
The PAM2322AGEAR supports
a range of input voltages from
2.7V to 5.5V, allowing the use
of a single Li+/Li-polymer cell,
multiple alkaline/NiMH cell,
USB, and other standard power
sources.
It provides a power-saving
Pulse-Skipping Modulation
(PSM) mode to reduce supply
current under light load
operation.
Two outputs provide 1.8V/1A
fixed Vout and 2A/Vout
adjustable from 0.9V to Vin with
independent enable pins.
The PAM2322AGEAR is in DFN
W-FLGA2520-17 package – a
2.5mm x 2.0mm footprint and
0.75mm thickness.
The Diodes Advantage
 Good Light load, high efficiency
During light loads the PAM2322AGEAR enters PSM to reduce
the operating power; ensuring high efficiency regardless of load.
 Protection features
Under voltage lock out, soft-start, over temperature and hiccup
mode at short circuit protections.
 100% Duty Cycle
Allows system to work at lowest input voltage to increase the
battery life.
 Small footprint (2.5mm x 2.0mm) U-FLGA2520-17 package
Minimizes PCB area while providing good thermal dissipation.
Applications
 Wireless and DSL modems
 Portable devices
 Personal information
appliances
www.diodes.com
Issue Number │001
October 2014
New Product
Announcement
PAM2322AGEAR
Typical Application Schematic:
VIN
3.3V
L1
1.5µH
VOUT1
1.8V
SW1
VIN
CIN
10uF
CIN
10uF
COUT1
10uF
OUT1
PAM2322AGEAR
EN1
PG1
PG1
EN1
PAM2322
EN2
EN2
L2
1.0µH
VOUT2
1.22V
SW2
COUT2
10uF
COUT2
10uF
OUT2
GND
Rfb_up
205kΩ
FB2
Rfb_dn
200kΩ
2.5
2.5
2.5
2.7
V % µA
1 1.5 0.6
1 1.5 0.6
2 3/2.5 0.6
2 1.2 0.6
62
95
88
92
220
80
95
60
°C
-40 to +80
-40 to +85
-40 to +85
-40 to +85
Features
Independent Enable Pins
Short-Circuit Protection
Thermal Shutdown
100% Duty Cycle
Under Voltage Lockout
Soft-start
LLHE
Power Good
A MHz
Ambient Temp Range
V
Quiescent Current
A
Efficiency
Output Current 2
V
Internal Vref (V)
Output Voltage 2
V
5.5
Adj
1
Adj
5.5 Adj+fixed 1 Adj+ fixed
5.5
Adj
1
Adj
5.5
1.8
1 0.9~ Vin
Frequency
Output Current 1
V
AP3427M
PAM2306
PAM2319
PAM2322AGEAR
Output Voltage 1
Min. Input Voltage
Part #
Max. Input Voltage
Dual Channel Buck Converter Product Portfolio
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Available
Packages
N U-DFN3030-10
N U-DFN3030-12
N W-DFN3030-12
Y U-FLGA2520-17
To find out more information: please look at:
Synchronous Rectified Buck Converter Web page : http://diodes.com/catalog/buck_converter_57/
Datasheet:
http://diodes.com/datasheets/PAM2322AGEAR.pdf
Ordering Information
Device
PAM2322AGEAR
Packaging
W-FLGA2520-17
Part Mark
CRA
XYW
Reel Size
7”
Quantity
3000
All variants are in packages that are “Green” Molding Compound (No Br, Sb) with Lead Free Finish/RoHS Compliant (Note 1)
Notes:1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied, see EU Directive 2002/95/EC Annex Notes
2 Codes for date coding on part marks
Y : Year
W : Week
CRA : Product Code of PAM2322
X : Internal code
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