AP63300
Full part number: AP63300WU-7
Every spec below is cited to the manufacturer datasheet. Compare the closest alternatives, then ask the assistant what it means for your design.
What the AP63300 does
The AP63300/AP63301 is a 3A synchronous buck converter operating across a 3.8V to 32V input range. It integrates 75mΩ and 40mΩ power MOSFETs to deliver high-efficiency step-down conversion with up to 88% efficiency at light loads. The device supports 500kHz switching frequencies and includes Frequency Spread Spectrum to reduce EMI. Engineers typically use it for distributed power bus supplies, flat screen monitors, power tools, and general-purpose point-of-load applications. It features a proprietary gate driver scheme, pulse frequency modulation, and comprehensive protection circuitry including thermal shutdown and cycle-by-cycle current limiting. Available in a TSOT26 package, the AP63300 and AP63301 variants offer low quiescent current and precision enable thresholds for diverse electronic systems.
Datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 22 µA | — | VEN = Floating, VFB = 1.0V | Diodes datasheet, p. 6 — Recommended Operating Conditions (Note 7) (At , unless otherwise speci… |
| output voltage | 800 mV | — | 31 V | vout; Recommended Operating Conditions (Note 7) (At $ TA = +25^{\circ}C $, unless otherwise specified.) | Diodes datasheet, p. 5 — Recommended Operating Conditions (Note 7) (At , unless otherwise speci… |
| output current | — | 3 A | — | Diodes datasheet, p. 1 | |
| supply voltage range | 3.8 V | — | 32 V | vin; Recommended Operating Conditions (Note 7) (At $ TA = +25^{\circ}C $, unless otherwise specified.) | Diodes datasheet, p. 5 — Recommended Operating Conditions (Note 7) (At , unless otherwise speci… |
| switching frequency | — | 500 kHz | — | Diodes datasheet, p. 6 — Recommended Operating Conditions (Note 7) (At , unless otherwise speci… | |
| operating temperature | -40 °C | — | 85 °C | ta; Recommended Operating Conditions (Note 7) (At $ TA = +25^{\circ}C $, unless otherwise specified.) | Diodes datasheet, p. 5 — Recommended Operating Conditions (Note 7) (At , unless otherwise speci… |
| output count | — | 1 | — | Diodes datasheet, p. 1 |
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Frequently asked questions
What is the maximum operating temperature (ta) for the AP63300WU-7?
The operating temperature (ta) is 85 °C.
What is the output count of the AP63300WU-7?
The output count is 1.
What is the output current of the AP63300WU-7?
The output current is 3 A.
What is the output voltage (vout) under Recommended Operating Conditions (Note 7) at TA = +25°C?
The output voltage is 31 V.
What is the quiescent current when VEN is floating and VFB is 1.0V?
The quiescent current is 22 µA.
What is the supply voltage range (vin) under Recommended Operating Conditions (Note 7) at TA = +25°C?
The supply voltage range (vin) is 32 V.
What is the switching frequency of the AP63300WU-7?
The switching frequency is 500 kHz.