Datasheet 8V to 35V, 3.0A 1ch Buck Converter with Integrated FET BD9702CP-V5 BD9702T BD9702T-V5 Key Specifications General Description Input Voltage Range: 8Vto 35V The BD9702xx is a series of single-channel step-down Output Voltage Range: 1.0V to 32V switching regulators capable of PWM operation. It has a Output Current: 3.0A(Max) built-in P-Channel MOSFET making its efficiency high at Switching Frequency: 110kHz(Typ) small loads. It has lower power consumption because it FET ON-Resistance: 0.5(Typ) is made under Bi-CMOS process. Its operating current is Standby Current: 0A (Typ) only 4mA (Typ) and standby current is 0A (Typ). Operating Temperature Range: -40C to +85C Features Packages W(Typ) x D(Typ )x H(Max) Built-In P-Channel MOSFET for High Efficiency Adjustable Output Voltage Via External Resistors Built-in Over-Current and Thermal Shutdown Circuits ON/OFF Control Via STBY Pin Applications TVs, Printers, DVD Players, Projectors, Gaming Devices, PCs, Car Audio/Navigation Systems, ETCs, Communication Equipment, AV Products, Office TO220CP-V5 Equipment, Industrial Devices, and more. 10.00mm x 20.12mm x 4.60mm TO220FP-5 10.00mm x 30.50mm x 4.60mm Typical Application Circuit TO220FP-5(V5) 10.00mm x 31.50mm x 8.15mm + C 1 C 2 VCC 1 L OUT 1 5.0V 2 + D1 C4 C3 STBY 5 R : 4k 1 INV 4 R2 : 1k 3 GND Figure 1. Typical Application Circuit Product structure : Silicon monolithic integrated circuit This product has no designed protection against radioactive rays . www.rohm.com TSZ02201-0Q3Q0AJ00400-1-2 2014 ROHM Co., Ltd. All rights reserved. 1/18 TSZ22111 14 001 04.Nov.2014 Rev.001 BD9702CP-V5 BD9702T BD9702T-V5 Block Diagram VCC 1 VREF PWM COMP DRIVER OSC STBY 5 STBY CTL LOGIC OUT 2 OCP TSD INV Error AMP 4 3 GND Figure 2. Block Diagram Pin Configuration TO220CP-V5 TO220FP-5 TO220FP-5(V5) (TOP VIEW) (TOP VIEW) (TOP VIEW) 5 1 2 3 4 1 3 5 1 2 3 4 5 2 4 Pin Description Pin No. Pin Name Function 1 VCC Input power supply pin 2 OUT Internal Pch FET drain pin 3 GND Ground 4 INV Output voltage feedback pin 5 STBY ON/OFF control pin www.rohm.com TSZ02201-0Q3Q0AJ00400-1-2 2014 ROHM Co., Ltd. All rights reserved. 2/18 TSZ22111 15 001 04.Nov.2014 Rev.001 VCC OUT GND INV STBY VCC OUT GND INV STBY VCC OUT GND INV STBY U