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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.


  • 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

Type Buck
Efficiency (%) 92 %
HS RDS(ON) (mΩ) 70 mΩ
LS RDS(ON) (mΩ) N/A mΩ
Frequency Typ (Hz) 300 kHz
MinimumInput Voltage (V) 3.6 V
MaximumInput Voltage (V) 18 V
Output Current (mA) 2 A
Output Voltage (V) 0.8 to VCC ADJ V
Quiescent Current Typ (mA) N/A mA
Shutdown Current Typ (µA) 10 µA

Related Content


Technical Documents

Application Notes

Recommended Soldering Techniques


Orderable Part Number Status Package Environmental Compliance Packing Buy from Distributor /
Contact Sales
Request Samples
Qty. Carrier
AP1513SA Obsolete SO-8 TPGP 2500 T&R
AP1513SG-13 Active SO-8 TPGP 2500 T&R


Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 18 6/27/2022 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample
AP1513SL-13 Obsolete SO-8 TPGP 2500 T&R

Environmental Compliance Legend:
LFF: Pb-Free Finish and RoHS 5/6
TLFP: Totally Pb-Free Product and RoHS 6/6
LFGP: Pb-free Finish and Green Product, RoHS 5/6 and Halogen Free
TPGP: Totally Pb-Free and Green Product, RoHS 6/6 and Halogen Free
GREEN: Halogen-free and RoHS compliant
RoHS: RoHS compliant but NOT halogen-free

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