IC:0

4.2V to 18V, 3A 1ch Synchronous Buck Converter with Integrated FET

General Description :
The BD9329AEFJ is a synchronous step-down switching regulator with built-in two low-resistance N-Channel MOSFETs. This IC can supply continuous output current of 3A over a wide input range, and provides not only fast transient response, but also easy phase compensation because of current mode control.

Features :
 Uses Low ESR Output Ceramic Capacitors
 Low Standby Current
 380 kHz Fixed Operating Frequency
 Feedback Voltage
 0.9V ± 1.5%(Ta=25°C)
 0.9V ± 2.0%(Ta=-25°C to +85°C)
 Under Voltage Protection
 Thermal Shutdown
 Over Current Protection

Applications :
- Distributed Power Systems
- Pre-Regulator for Linear Regulators

Key Specifications :
 Input Voltage Range: 4.2V to 18V
 Output Voltage Range: 0.9V to (Vinx 0.7)V
 Output Current: 3.0A (Max)
 Switching Frequency 380kHz(Typ)
 Hi-Side FET ON-Resistance: 0.15Ω(Typ)
 Lo-Side FET ON-Resistance: 0.13Ω(Typ)
 Standby Current: 15μA ( Typ)
 Operating Temperature Range: -40°C to +85°C