BD9G201EFJ-LBE2 ROHM

Datasheet 4.5V to 42V Input Voltage Range 1.5A Output Current Integrated FET 1ch Buck Converter BD9G201EFJ-LB General Description Key Specifications This is the product guarantees long time support in Input Voltage range : 4.5V to 42V Industrial market. Reference voltage precision (Ta= 25C) 1.5% (Ta= -40C to +105C) 2.0% BD9G201EFJ-LB is a buck converter with built-in high Max Output Current : 1.5A(Max) side MOSFET. It has an input voltage range of 4.5V to Operating Temperature range : -40C to +105C 42V. Current mode architecture provides fast transient response and a simple phase compensation setup. Package W (Typ) x D (Typ) x H (Max) The IC is mainly used as a secondary side power HTSOP-J8ES 4.90mm x 6.00mm x 1.00mm supply: for example, a step-down output of 3.3V/5V can be produced from voltage power supply such as 12V or 24V. In addition, it has a synchronization function with an external CLK that provides noise management. Features Long Time Support Product for Industrial Applications Integrated Nch MOSFET Synchronizes to external clock 250kHz to 500kHz ON/OFF Control through EN Terminal (Standby current of 0A) Small package(HTSOP-J8ES) LowDrop Out operation HTSOP-J8ES Applications Industrial distributed-power applications Typical Application Circuit 0.1F 5V/1.5A L1: 22H LX VOUT VCC VCC COUT CVCC D1 : 47F/16V : 10F/50V GND BST R4 EN EN VC R5 160k 0.01F SYNC FB SYNC 4.7k 30k Figure 1. Typical Application Circuit Product structure : Silicon monolithic integrated circuit This product has no designed protection against radioactive rays www.rohm.com TSZ02201-0252AAJ00140-1-2 2018 ROHM Co., Ltd. All rights reserved. 1/28 09.May.2018 Rev.001 TSZ2211114001 BD9G201EFJ-LB Pin Configuration (TOP VIEW) LX 1 8 VCC 7 BST GND 2 THERMAL PAD 6 EN VC 3 5 SYNC FB 4 Figure 2. Pin Configuration Pin Description Pin No. Pin Name Description 1 LX Switching terminal 2 GND Ground terminal 3 VC Error amplifier output terminal 4 FB Feedback input terminal 5 SYNC External clock input terminal 6 EN Enable terminal 7 BST Terminal for boot-strap capacitor 8 VCC Power supply terminal - THERMAL PAD PAD for heat dissipation. Always connect to GND. Block Diagram ON/OFF EN VCC 10A UVLO TSD REF REG CHG + - 1.8V Current ENUVLO Sense shutdown OCP BST Current Nch FET SW Error Sense AMP FB + AMP 140m - R Q 0.8V - + S VOUT + LX 10 Soft Start Maxduty GND Oscillator Logic VC SYNC Figure 3. Block Diagram www.rohm.com TSZ02201-0252AAJ00140-1-2 2018 ROHM Co., Ltd. All rights reserved. 2/28 09.May.2018 Rev.001 TSZ2211115001