Diodes Incorporated AP1603
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. The AP1603 starts up from less than 0.9V input with 1mA load. The output ripple and noise are lower compared with the circuits operating in PSM mode.DESCRIPTION
Only four external components are required to deliver a fixed output voltage of 3.3V. Pulse Frequency Modulation scheme brings optimized performance for applications with light output loading and low input voltages. Pin Assignments ( Top View ) FB 1 6 SHDN GND 2 AP1603 5 OUT 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. REF 3 74 LX SOT26FEATURES
● 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 Package: SOT26
● Available in Green molding
● Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
● Halogen and Antimony Free. “Green” Device (Note 3)
APPLICATIONS
● Pagers● Cameras
● Wireless Microphones
● Pocket Organizers
● Battery Backup Suppliers
● Portable Instruments Notes: 1.