AP1605 Overview
AP1605 consists of CMOS step-down switching regulator with PWM/PFM dual mode control. These devices include a reference voltage source, oscillation circuit, error amplifier, internal PMOS and etc. AP1605 provides low-ripple power, high efficiency, and excellent transient characteristics.
AP1605 Key Features
- Low current consumption: In operation: 100µA max. Power off: 2µA max
- Input voltage: 2.5V to 7V. Adjustable version (+2.5%)
- PWM/PFM dual Mode
- Oscillation frequency: 300KHz (Typ.)
- With a power-off function
- Built-in internal SW P-channel MOS
- SOP-8L/TSSOP-8L Package
- General Description
AP1605 Applications
- On-board power supplies of battery devices for portable telephones, electronic notebooks, PDA, and other hand-held sets
- Power supplies for audio equipment, including portable CD players and headphone stereo equipment
- Fixed voltage power supply for cameras, video equipment and munications equipment
- Power supplies for microputers
- Conversion from four Ni-H or Ni-Cd cells or two lithium-ion cells to 3.3V/3V
- Conversion of AC adapter input to 5V/3V
