Diodes Incorporated AP61402/AP61402Q Synchronous Buck Converters
Diodes Incorporated AP61402/AP61402Q Synchronous Buck Converters are devices that operate at 2.3V to 5.5V input voltage and 4A output current. These buck converters are high-efficiency devices that help to extend battery life in portable applications and reduce heat generation. The AP61402 integrates both high-side and low-side power MOSFETs, minimizing the external component count and simplifying board design. These devices operate at a 2MHz switching frequency and 0.5V ±2% reference voltage. The AP61402Q converters are suitable for automotive applications requiring specific change control, AEC-Q100 qualified, PPAP capable, and manufactured in IATF16949 certified facilities. The AP61402 converters are ideal for automotive power systems, network video cameras, general-purpose POL supplies, hard disk drives, wireless routers, and automotive infotainment.Features
- 2.3V to 5.5V VIN input voltage range
- 0.5V to 5.5V wide output voltage range
- 4A continuous output current
- 0.5V ±2% reference voltage
- 20µA ultra-low quiescent current (pulse-frequency modulation)
- 2MHz switching frequency
- Programmable modulation mode through EN
- Pulse-frequency modulation
- Pulse-width modulation regardless of output load
- Proprietary gate driver design for best EMI reduction
- ±5% window power-good indicator and OCP selector
- Protection circuitry:
- Undervoltage Lockout (UVLO)
- VIN Overvoltage Protection (OVP)
- Peak and valley current limit
- Thermal shutdown
- Totally lead-free and fully RoHS Compliant
- Halogen and antimony-free "Green" device
- AP61402Q is suitable for automotive applications requiring specific change control
- Suffix Q is AEC-Q100 qualified, PPAP capable, and manufactured in IATF16949-certified facilities
Applications
- AP61402Q automotive:
- Automotive power systems
- Automotive infotainment
- Automotive instrument clusters
- Automotive telematics
- Advanced driver assistance systems
- AP61402:
- General-purpose POL supplies
- Network video cameras
- Wireless routers
- Hard disk drivers
Additional Resource
Application Diagram
Block Diagram
Published: 2025-06-27
| Updated: 2025-07-10
