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BD9120HFN Dataheets PDF



Part Number BD9120HFN
Manufacturers Rohm
Logo Rohm
Description Synchronous Buck Converter
Datasheet BD9120HFN DatasheetBD9120HFN Datasheet (PDF)

Datasheet Synchronous Buck Converter with Integrated FET BD9106FVM BD9107FVM BD9109FVM BD9110NV BD9120HFN General Description The BD9106FVM, BD9107FVM, BD9109FVM, BD9110NV, and BD9120HFN are ROHM’s high efficiency step-down switching regulators designed to produce a voltage as low as 1V from a supply voltage of 3.3V or 5.0V. It offers high efficiency by using synchronous switches and provides fast transient response to sudden load changes by implementing current mode control. Features  Fast T.

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Datasheet Synchronous Buck Converter with Integrated FET BD9106FVM BD9107FVM BD9109FVM BD9110NV BD9120HFN General Description The BD9106FVM, BD9107FVM, BD9109FVM, BD9110NV, and BD9120HFN are ROHM’s high efficiency step-down switching regulators designed to produce a voltage as low as 1V from a supply voltage of 3.3V or 5.0V. It offers high efficiency by using synchronous switches and provides fast transient response to sudden load changes by implementing current mode control. Features  Fast Transient Response because of Current Mode Control System  High Efficiency for All Load Ranges because of Synchronous Switches (Nch and Pch FET) and SLLMTM (Simple Light Load Mode)  Soft-Start Function  Thermal Shutdown and ULVO Functions  Short-Circuit Protection with Time Delay Function  Shutdown Function Application Power Supply for LSI including DSP, Microcomputer and ASIC Typical Application Circuit Key Specifications  Input Voltage Range BD9120HFN: BD9106FVM, BD9107FVM: BD9109FVM, BD9110NV:  Output Voltage Range BD9109FVM: BD9120HFN: BD9107FVM: BD9106FVM, BD9110NV:  Output Current BD9106FVM, BD9109FVM, BD9120HFN: BD9107FVM: BD9110NV:  Switching Frequency:  FET ON-Resistance BD9110NV: BD9106FVM, BD9107FVM: BD9120HFN, BD9109FVM:  Standby Current:  Operating Temperature Range BD9110NV: BD9120HFN, BD9106FVM: BD9107FVM, BD9109FVM: 2.7V to 4.5V 4.0V to 5.5V 4.5V to 5.5V 3.30V ± 2% 1.0V to 1.5V 1.0V to 1.8V 1.0V to 2.5V 0.8A(Max) 1.2A(Max) 2.0A(Max) 1MHz(Typ) Pch(Typ)/Nch(Typ) 200mΩ / 150mΩ 350mΩ / 250mΩ 350mΩ / 250mΩ 0μA(Typ) -25°C to +105°C -25°C to +85°C -25°C to +85°C Packages W(Typ) x D(Typ) x H(Max) VCC CIN VCC,PVCC L EN SW VOUT VOUT CO R2 RITH ITH GND,PGND R1 HSON8 MSOP8 2.90mm x 3.00mm x 0.60mm 2.90mm x 4.00mm x 0.90mm CITH Figure 1. Typical Application Circuit SON008V5060 5.00mm x 6.00mm x 1.00mm Product structure : Silicon integrated circuit www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. T SZ22111 • 14 • 001 This product has no designed protection against radioactive rays. 1/46 TSZ02201-0J3J0AJ00090-1-2 03.Apr.2019 Rev.004 BD9106FVM BD9107FVM BD9109FVM BD9110NV BD9120HFN Pin Configuration (Top View) (Top View) 1 ADJ VCC 8 1 VOUT VCC 8 2 ITH PVCC 7 2 ITH PVCC 7 3 EN SW 6 3 EN SW 6 4 GND PGND 5 4 GND PGND 5 Datasheet Figure 2. BD9106FVM, BD9107FVM ADJ 1 (Top View) 8 EN VCC 2 ITH 3 7 PVCC 6 SW GND 4 5 PGND Figure 3. BD9109FVM (Top View) 1 ADJ VCC 8 2 ITH 3 EN PVCC SW 7 6 4 GND PGND 5 Figure 5. BD9120HFN Figure 4. BD9110NV Pin Description [BD9106FVM, BD9107FVM, BD9109FVM] Pin No. Pin Name 1 ADJ/VOUT 2 ITH 3 EN 4 GND 5 PGND 6 SW 7 PVCC 8 VCC [BD9110NV] Pin No. Pin Name 1 ADJ 2 VCC 3 ITH 4 GND 5 PGND 6 SW 7 PVCC 8 EN [BD9120HFN] Pin No. Pin Name 1 ADJ 2 ITH 3 EN 4 GND 5 PGND 6 SW 7 PVCC 8 VCC Function Output voltage detection pin / ADJ for BD9106FVM·BD9107FVM GmAmp output pin/connected to phase compensation capacitor Enable pin(active h.


BD9110NV BD9120HFN BD952


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