Datasheet 3.5 V to 40 V Input, 1 A Single 2.2 MHz Buck DC /DC Converter For Automotive BD9P1x5EFV-C Series General Description Key Specifications BD9P1x5EFV-C Series are current mode synchronous Input Voltage Range: 3.5 V to 40 V buck DC/DC converter integrating POWER MOSFETs. (Initial startup is 4.0 V or more) Output Voltage Range Features BD9P105EFV-C: 0.8 V to 8.5 V TM Nano Pulse Control BD9P135EFV-C: 3.3 V (Typ) (Note 1) AEC-Q100 Qualified BD9P155EFV-C: 5.0 V (Typ) Minimum ON Pulse 50 ns (Max) Output Current: Synchronous Buck DC/DC Converter Integrating OCP SEL = L 0.5 A (Max) POWER MOSFETs OCP SEL = H 1.0 A (Max) Soft Start Function Switching Frequency: 2.2 MHz (Typ) Current Mode Control Output Voltage Accuracy: Reset Function 1.75 % (-40 C to +125 C) Quiescent Current 10 A (Typ) Shutdown Current: 2.1 A (Typ) with 12 V Input to 5.0 V Output Operating Temperature Range: -40 C to +125 C Light Load Mode (LLM) Forced Pulse Wide Modulation (PWM) Mode Package W (Typ) x D (Typ) x H (Max) Phase Compensation Included HTSSOP-B20 6.5 mm x 6.4 mm x 1.0 mm Selectable Spread Spectrum Switching External Synchronization Function Selectable Over Current Protection (OCP) Input Under Voltage Lockout (UVLO) Protection Thermal Shut Down (TSD) Protection Output Over Voltage Protection (OVP) Short Circuit Protection (SCP) (Note 1) Grade 1 Applications Automotive Powered Supplies Consumer Powered Supplies HTSSOP-B20 Typical Application Circuit C BST V IN VIN BST V OUT L 1 SW PVIN VCC EX C IN EN VOUT DIS PGND VOUT SNS C OUT R RST RESET VREG C REG V MODE MODE OCP SEL V SSCG SSCG GND Figure 1. Application Circuit with Discharge Function (BD9P135EFV-C, BD9P155EFV-C) TM Nano Pulse Control is a trademark of ROHM Co., Ltd. Product structure : Silicon integrated circuit This product has no designed protection against radioactive rays . www.rohm.com TSZ02201-0J1J0AL01480-1-2 2019 ROHM Co., Ltd. All rights reserved. 1/57 TSZ22111 14 001 08.Apr.2020 Rev.002 BD9P1x5EFV-C Series Typical Application Circuit - continued C BST V IN VIN BST V OUT L 1 SW PVIN VCC EX C IN EN VOUT DIS PGND C VOUT SNS OUT R RST RESET VREG C REG MODE V MODE OCP SEL V SSCG SSCG GND Figure 2. Application Circuit without Discharge Function (BD9P135EFV-C, BD9P155EFV-C) C BST V IN VIN BST V OUT L 1 SW PVIN VCC EX R FB1 C EN IN VOUT DIS FB PGND VOUT SNS C OUT R RST RESET VREG C REG R V FB2 MODE MODE OCP SEL V SSCG SSCG GND Figure 3. Application Circuit with Discharge Function (BD9P105EFV-C) C BST V IN VIN BST V OUT L 1 SW PVIN VCC EX R FB1 C IN EN VOUT DIS FB PGND VOUT SNS C OUT R RST RESET VREG C REG R V FB2 MODE MODE OCP SEL V SSCG SSCG GND Figure 4. Application Circuit without Discharge Function (BD9P105EFV-C) www.rohm.com TSZ02201-0J1J0AL01480-1-2 2019 ROHM Co., Ltd. All rights reserved. 2/57 TSZ22111 15 001 08.Apr.2020 Rev.002