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AP1605

Diodes Incorporated
Part Number AP1605
Manufacturer Diodes Incorporated
Description PWM/PFM DUAL-MODE STEP-DOWN SWITCHING REGULATOR
Published May 12, 2007
Detailed Description AP1605 PWM/PFM DUAL-MODE STEP-DOWN SWITCHING REGULATOR Features • • • • • • • • Low current consumption: In operation: ...
Datasheet PDF File AP1605 PDF File

AP1605
AP1605

Overview
AP1605 PWM/PFM DUAL-MODE STEP-DOWN SWITCHING REGULATOR 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 Lead Free and Green Package: SOP-8L Lead Free Finish/RoHS Compliant (Note 1) General Description 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.
The PWM/PFM control circuit is able to vary the duty ratio linearly 0%~0.
25% (PFM) and 25%~100% (PWM).
With the addition of an internal P-channel Power MOS, a coil, capacitors, and a diode connected externally, these ICs can function as step-down switching regulators.
They serve as ideal pow...


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