Product Summary

The AP1538SG is a buck converter. The AP1538SG consists of step-down switching regulator with PWM control. The device includes a reference voltage source, oscillation circuit, error amplifier, internal PMOS. The AP1538SG 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 99%. This converter also contains an error amplifier circuit as well as a soft-start circuit that prevents overshoot at startup. The applications of the AP1538SG include PC Motherboard, LCD Monitor, Graphic Card, DVD-Video Player, Telecom Equipment, ADSL Modem, Printer and other Peripheral Equipment, Microprocessor core supply.

Parametrics

AP1538SG absolute maximum ratings: (1)ESD HBM, Human Body Model ESD Protection: 7KV; (2)ESD MM, Machine Model ESD Protection: 450V; (3)VCC, VCC Pin Voltage: VSS -0.3 to VSS +20V; (4)VFB, Feedback Pin Voltage: VSS -0.3 to VCCV; (5)VEN, EN Pin Voltage: VSS -0.3 to VCCV; (6)VOUT, Switch Pin Voltage: VSS -0.3 to VCCV; (7)PD, Power Dissipation: Internally limited mW; (8)TJ, Operating Junction Temperature Range: -40 to +125℃; (9)TST, Storage Temperature Range: -65 to +150℃.

Features

AP1538SG features: (1)Input voltage: 3.6V to 18V; (2)Output voltage: 0.8V to VCC; (3)Output current: up to 3A; (4)Duty ratio: 0% to 99% PWM control; (5)Oscillation frequency: 300KHz typical; (6)Soft-start like, Current limit and Enable function; (7)Thermal Shutdown function; (8)Built-in internal SW P-channel MOS; (9)SOP-8L and SOP-8L-DEP: Available in Green Molding Compound (No Br, Sb)LLead Free Finish / RoHS Compliant.

Diagrams

AP1538SG block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
AP1538SG-13
AP1538SG-13

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5000-10000: $0.20
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