AP1603 Datasheet, PDF (1/8 Pages) Anachip Corp – Step-Up DC/DC Converter

Features
• A Guaranteed Start-Up from less than 0.9 V
• High Efficiency
• Low Quiescent Current
• Less Number of External Components needed
• Low Ripple and Low Noise
• Space Saving Lead-Free Packages: SOT26
• Lead Free Finish/RoHS Compliant for Lead Free
products (Note 1)
AP1603
STEP-UP DC/DC CONVERTER
General Description
The AP1603 is a high efficiency step-up DC/DC converter for
applications using as few as a single NiMH or Li-Ion battery cells.
Only four external components are required to deliver a fixed
output voltage of 3.3V. The AP1603 starts up from less than 0.9V
input with 1mA load. Pulse Frequency Modulation scheme brings
optimized performance for applications with light output loading
and low input voltages. The output ripple and noise are lower
compared with the circuits operating in PSM mode.
The PFM control circuit operating in 150KHz (max.) switching
rate results in smaller passive components. The space saving
SOT26 packages make the AP1603 an ideal choice of DC/DC
converter for space conscious applications, like pagers,
electronic cameras, and wireless microphones.
Applications
• Pagers
• Cameras
• Wireless Microphones
• Pocket Organizers
• Battery Backup Suppliers
• Portable Instruments
Ordering Information
A P1603 X X X
Package
W : SOT26
Lead-Free
L : Lead-Free
(Note 2)
Packing
- 7 : Taping
Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Device
Package Code
Packaging
(Note 2)
AP1603W
W
Lead-free
SOT26
7” Tape and Reel
Quantity
Part Number Suffix
3000/Tape & Reel
-7
Note: 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
AP1603 Rev. 1
1 of 8
www.diodes.com
NOVEMBER 2006
© Diodes Incorporated