HT7463A Asynchronous Step Down Converter 52V 600mA 1.25MHz SOT23-6

Description

HT7463A Asynchronous Step Down Converter 52V 600mA 1.25MHz SOT23-6

General / Electrical Specifications

• Part: HT7463A

• Type: Asynchronous step-down (buck) DC-DC converter (current-mode)

• Package: SOT-23-6 (6-lead)

• Input Voltage Range: 4.5 V to 52 V

• Output Voltage: Adjustable (via external resistor divider) — typical range from ~1.0 V up to ~36 V (set by feedback network)

Performance

• Peak Output Current: 600 mA

• Operating Frequency: 1.25 MHz (fixed for HT7463A)

• Internal Power Switch: 52 V / 0.9 Ω MOSFET integrated

• Typical Efficiency: up to ≈90 % (varies with input/output conditions)

Quiescent & Protection Features

• Ultra-Low Shutdown Current: < 1 µA

• Output Short-Circuit Protection: Yes

• Thermal Shutdown Protection: Yes

Operating Conditions

• Quiescent Operating Current: ~0.7 mA typical at VIN=12 V (varies with load)

• Shutdown / Off Current: typically ~0.1 µA, max ~1 µA

• Internal RDS(ON): ~0.9 Ω (at VEN=2.5 V)

• Thermal & Junction Conditions: typical automotive-grade protections included (thermal limits, UVLO, etc.)

Typical Applications

• Automotive and industrial power systems

• Power meters / distribution systems

• Battery chargers

• Pre-regulator for linear regulators and other DC-DC stages

Summary