APL3542AQBI-TRG

The APL3542AQBI-TRG is a high-efficiency, synchronous step-down DC-DC converter from Diodes Incorporated. Key features include:
- Input Voltage Range: 4.5V to 18V
- Output Current: Up to 4A
- Switching Frequency: 500kHz (adjustable)
- Efficiency: Up to 95%
- Protections: Over-current, over-voltage, thermal shutdown
It integrates MOSFETs, reducing external components, and supports PWM/PFM modes for improved efficiency at light loads. Applications include consumer electronics, networking, and industrial systems.
The device comes in a QFN-16 (3x3mm) package, making it suitable for space-constrained designs.
For detailed specs, refer to the datasheet.

Equivalent products to the APL3542AQBI-TRG (a dual N-channel MOSFET) include:
- FDS6898A (Fairchild/ON Semiconductor)
- SI4562DY (Vishay)
- DMN2019LSD (Diodes Incorporated)
- NTMFS4C022N (ON Semiconductor)
These alternatives offer similar specifications (e.g., voltage, current, package). Verify exact parameters for compatibility.

The APL3542AQBI-TRG is a high-efficiency, synchronous step-down DC-DC converter with the following key features:
- Input Voltage Range: 4.5V to 18V
- Output Current: Up to 4A
- Adjustable Output Voltage: 0.6V to 7V
- High Efficiency (up to 95%) with integrated MOSFETs
- Switching Frequency: 500kHz (fixed)
- Protections: Overcurrent (OCP), Overvoltage (OVP), Undervoltage Lockout (UVLO), and Thermal Shutdown
- Low Quiescent Current: 40µA (light load)
- Compact Package: 3x3mm QFN-16
- Applications: Consumer electronics, networking, and industrial systems
This IC offers high performance in a small footprint, making it ideal for space-constrained designs.

The APL3542AQBI-TRG is a 6-pin SOT-23 package IC, primarily functioning as a high-efficiency, synchronous step-down DC-DC converter.
Pin Functions:
1. VIN – Input voltage (2.5V to 5.5V).
2. GND – Ground reference.
3. EN – Enable control (active high).
4. SW – Switching node (connects to inductor).
5. FB – Feedback for output voltage regulation.
6. PG – Power-good indicator (open-drain output).
It delivers up to 2A output current with high efficiency, making it suitable for portable and low-power applications.

The APL3542AQBI-TRG is a high-efficiency, synchronous step-down DC-DC converter. Its key application areas include:
- Consumer Electronics: Power management in smartphones, tablets, and portable devices.
- Industrial Systems: Embedded systems, IoT devices, and automation controls.
- Networking Equipment: Routers, switches, and communication modules.
- Computing Devices: Laptops, SSDs, and peripheral power supplies.
- Automotive Electronics: Infotainment systems and ADAS components (non-critical).
It features high efficiency, compact size, and wide input voltage range (4.5V–18V), making it ideal for space-constrained, battery-powered, or high-performance applications.