ap1522wa Diodes, Inc., ap1522wa Datasheet

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ap1522wa

Manufacturer Part Number
ap1522wa
Description
Step-up Dc/dc Converter
Manufacturer
Diodes, Inc.
Datasheet

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Step-Up DC/DC Converter
- High Efficiency: 84% Typical
- 36V High Output Voltage
- Fast 1MHz Switching Frequency
- Low Profile SOT23-5 Pb-Free Packaging
- Cellular Phones
- PDAs, Handhelp Computers
- Digital Cameras
- LCD Bias Voltage, Battery Backup
-
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Features
Applications
Pin Assignments
Ordering Information
Not Recommended for New Design
SW V
V
IN
SOT23-5L
Top View
SS
SHDN
FB
W: SOT23-5L
Package
AP1522
X X
1/8
The AP1522 is a step-up DC/DC converter in a
5-Lead low profile SOT23-5 package. The AP1522
switches at 1MHz that allows the use of tiny
external components. A low 1.25V feedback voltage
minimizes power loss in the current setting resistor
for better efficiency.
Blank : Tube
A
SHDN
Name
Packing
General Description
Pin Descriptions
SW
V
FB
V
SS
: Taping
IN
Switch Pin. Connect inductor/diode
here. Minimize trace area at this pin
to reduce EMI.
GND pin
Feedback Pin. Reference voltage is
1.25V.
Shutdown Pin. Tie to 0.6V or higher
to enable device ; 0.5Vor less to
disable device.
Input Supply Pin. Must be locally
bypassed.
Description
Rev. 1.0 May. 5, 2005
AP1522

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ap1522wa Summary of contents

Page 1

Not Recommended for New Design Step-Up DC/DC Converter Features - High Efficiency: 84% Typical - 36V High Output Voltage - Fast 1MHz Switching Frequency - Low Profile SOT23-5 Pb-Free Packaging Applications - Cellular Phones - PDAs, Handhelp Computers - Digital ...

Page 2

Not Recommended for New Design Step-Up DC/DC Converter Block Diagram REF 5 IN 1.25V 4 Shutdown SHDN Absolute Maximum Ratings Symbol V V Pin Voltage Voltage SW V Feedback ...

Page 3

Not Recommended for New Design Step-Up DC/DC Converter Electrical Characteristics Symbol Parameter V Minimum Operation Voltage IN V Maximum Operation Voltage IN V Feedback Pin Voltage FB I Feedback Pin Bios Current FB Supply Current F Switching frequency SW Duty ...

Page 4

Not Recommended for New Design Step-Up DC/DC Converter Typical Application Circuit (Continued 2.5V~3.3V C 4.7uF 1-Cell Li-lon to 3.3V SEPIC Converter V IN 2.5V to 4.2V C1 4.7uF 4.7uF Anachip Corp. www.anachip.com.tw ...

Page 5

Not Recommended for New Design Step-Up DC/DC Converter Typical Application Circuit (Continued) +20V Dual Output Converter with Output Disconnect 4.7uF Applications Information Inductor Selection inductor is recommended for most AP1522 µ ...

Page 6

Not Recommended for New Design Step-Up DC/DC Converter Typical Performance Characteristics Frequency v.s. Temperature Vin=5V; Vout=15V 1000 900 800 700 600 500 400 300 200 100 0 -40 10 Temperature ( Supply Current v.s. Temperature Vin=5V; Vout=15V; Iout=0A 3 2.5 ...

Page 7

Not Recommended for New Design Step-Up DC/DC Converter Typical Performance Characteristics (Continued) Frequency v.s. Supply Voltage Vout=15V 1200 1000 800 600 400 200 Supply Voltage (V) Marking Information Identification code ...

Page 8

Not Recommended for New Design Step-Up DC/DC Converter Package Information Package Type: SOT23- With Plating Base Metal b Dimensions In Millimeters Symbol Min. A 1.05 A1 0.05 ...

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