Diodes Incorporated — Analog and discrete power solutions
SO 8

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AP1513

PWM CONTROL 2A STEP-DOWN CONVERTER

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Description

AP1513 consists of step-down switching regulator with PWM control. These devices include a reference voltage source, oscillation circuit, error amplifier, and internal PMOS. AP1513 provides low-ripple power, high efficiency, and excellent transient characteristics. The PWM control circuit is able to vary the duty ratio linearly from 0 up to 100%. This converter also contains an error amplifier circuit as well as a soft-start circuit that prevents overshoot at startup. An enable function, an over current protect function and a short circuit protect function are built inside, and when OCP or SCP happens, the operation frequency will be reduced from 300KHz to 30KHz. Also, an internal compensation block is built in to minimum external component count. 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 power supply units for portable devices when coup°C with the SOP–8L mini-package, providing such outstanding features as low current consumption. Since this converter can accommodate an input voltage up to 18V, it is also suitable for the operation via an AC adapter.

Application(s)

  • PC Motherboard
  • LCD Monitor
  • Graphic Card
  • DVD-Video Player
  • Telecom Equipment
  • ADSL Modem
  • Printer and other Peripheral Equipment
  • Microprocessor core supply
  • Networking power supply

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP) Standard
Type Buck
Minimum Input Voltage (V) 3.6
Maximum Input Voltage (V) 18
Output Current (A) 2
Minimum Output Voltage (V) 0.8
Maximum Output Voltage (V) VIN
Shutdown Current Typ (µA) 10
Frequency Typ (kHz) 300
HS RDS(ON) (mΩ) 70
LS RDS(ON) (mΩ) N/A

Related Content

Packages

Technical Documents

Application Notes

Recommended Soldering Techniques

TN1.pdf

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2512 2021-04-16 2021-07-16 Qualified Additional Assembly & Test (A/T) Site