AP1624 Datasheet, PDF (1/7 Pages) Anachip Corp – PWM/PFM Dual Mode Step-up DC/DC Controller

Not Recommended
for New Designs
AP1624
PWM/PFM DUAL MODE STEP-UP DC/DC CONTROLLER
Features
• Input Voltage Range: 0.9~6V
• PWM/PFM Switching Control
• High Efficiency: 90%
• Oscillator Frequency: 300kHz（±15%）
• Stand-by Current: I_STB = 3µA（Typ.）
• Lead Free Finish/RoHS Compliant for Lead Free
products (Note 1)
• Lead Free Package: SOT25
General Description
The AP1624 is a multi-functional step-up DC/DC controller.
Large output current is possible using an externally connected N
channel MOSFET, coil, and diode.
Output voltage（V_OUT）is programmable with 1.23V of standard
voltage supply internal, and using externally connected
components, output voltage（FB）can be set up at will.
With a 300KHz switching frequency, the size of the external
components can be reduced.
Control switches from PFM to PWM during light loads with the
AP1624（PFM/PWM switchable）and the series is highly efficient
from light loads to large output currents.
During stand-by time (CE pin “Low”), current consumption is
reduced to 3µA.
Applications
• Electronic Information Organizers
• Palmtops
• Cellular and Portable Phones
• Portable Audio Systems
• Various Multi-function Power Supplies
Ordering Information
AP1624 X X X
Package
W : SOT25
Lead-Free
L: Lead Free
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)
AP1624W
W
Lead-free
SOT25
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.
AP1624 Rev. 1
1 of 7
www.diodes.com
FEBRUARY 2007
© Diodes Incorporated