Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.
SO-8EP-package-image.png340kHZ 3A SYNCHRONOUS DC-DC BUCK CONVERTER
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The AP3503 is a 340kHz fixed frequency, current mode, PWM synchronous buck (step-down) DC-DC converter, capable of driving a 3A load with high efficiency, excellent line and load regulation. The device integrates N-channel power MOSFET switches with low on-resistance. Current mode control provides fast transient response and cycle-by-cycle current limit. The AP3503 employs complete protection to ensure system security. Including output Over Voltage Protection, input Under Voltage LockOut, programmable soft-start, Over Temperature Protection to safeguard the circuit. This IC is available in PSOP-8 package.
| Compliance(Only Automotive supports PPAP) | Standard |
|---|---|
| Type | Buck |
| Minimum Input Voltage (V) | 4.5 |
| Maximum Input Voltage (V) | 18 |
| Output Current (A) | 3 |
| Maximum Output Voltage (V) | ADJ |
| Quiescent Current Typ (µA) | 1200 |
| Shutdown Current Typ (µA) | 0.1 |
| Frequency Typ (kHz) | 340 |
| HS RDS(ON) (mΩ) | 100 |
| LS RDS(ON) (mΩ) | 100 |
