AP65201 Datasheet, PDF (1/14 Pages) Diodes Incorporated – TSOT26 LIGHT LOAD IMPROVED 2A SYNCH DC/DC BUCK CONVERTER

NOT RECOMMENDED FOR NEW DESIGN
AP65201
TSOT26 LIGHT LOAD IMPROVED 2A SYNCH DC/DC BUCK CONVERTER
Description
The AP65201 is a 500kHz switching frequency internal compensated
synchronous DC/DC buck converter. It has integrated low RDS(ON)
high and low side MOSFETs.
The AP65201 enables continuous load current of up to 2A with
efficiency as high as 97%.
The AP65201 implements an automatic custom light load efficiency
improvement algorithm.
The AP65201 features current mode control operation, which enables
fast transient response times and easy loop stabilization.
The AP65201 simplifies board layout and reduces space
requirements with its high level of integration and minimal need for
external components, making it ideal for distributed power
architectures.
The AP65201 is available in a standard Green TSOT26 package and
is RoHS compliant.
Pin Assignments
Top View
GND 1
SW 2
IN 3
TSOT26
6 BST
5 EN
4 FB
Features
 VIN 4.5V to 16V
 2A Continuous Output Current, 3A Peak
 Efficiency Up to 97%
 Automated Light Load Improvement
 VOUT Adjustable From 0.8V
 500kHz Switching Frequency
 Internal Soft-Start
 Enable Pin
 Overcurrent Protection (OCP) with Hiccup
 Thermal Protection
 Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
 Halogen and Antimony Free. “Green” Device (Note 3)
Applications
 Gaming Consoles
 Flat Screen TV Sets and Monitors
 Set-Top Boxes
 Distributed Power Systems
 Home Audio
 Consumer Electronics
 Network Systems
 FPGA, DSP and ASIC Supplies
 Green Electronics
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html 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 <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
Typical Applications Circuit
AP65201
Document number: DS36109 Rev. 3 - 3
INPUT
VIN
12V
C1
22μF
3
6
IN
BST
2
ON ₅
SW
OFF
EN AP65201
4
FB
1
GND
C5
1µF
L1
4.7μH
R3
75kΩ
R1
40.2kΩ
R2
13kΩ
OUTPUT
VOUT
3.3V
C2
22μF
Figure 1. Typical Application Circuit
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December 2016
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