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BD9775FV

Rohm
Part Number BD9775FV
Manufacturer Rohm
Description High-efficiency Switching Regulators
Published May 26, 2014
Detailed Description TECHNICAL NOTE Large Current External FET Controller Type Switching Regulator Step-down, High-efficiency Switching Regu...
Datasheet PDF File BD9775FV PDF File

BD9775FV
BD9775FV

Overview
TECHNICAL NOTE Large Current External FET Controller Type Switching Regulator Step-down, High-efficiency Switching Regulators (Controller type) BD9011EKN , BD9011KV , BD9775FV ■ BD901 1EKN, BD9011KV ●Overview The BD9011EKN/KV is a 2-ch synchronous controller with rectification switching for enhanced power management efficiency.
It supports a wide input range, enabling low power consumption ecodesign for an array of electronics.
●Features 1) Wide input voltage range: 3.
9V to 30V 2) Precision voltage references: 0.
8V±1% 3) FET direct drive 4) Rectification switching for increased efficiency 5) Variable frequency: 250k to 550kHz (external synchronization to 550kHz) 6) Built-in selected OFF latch and auto remove over current protection 7) Built-in independent power up/power down sequencing control 8) Make various application , step-down , step-up and step-up-down 9) Small footprint packages: HQFN36V, VQFP48C ●Applications Car audio and navigation systems, CRTTV，LCDTV，PDPTV，STB，DVD，and PC systems，portable CD and DVD players, etc.
●Absolute Maximum Ratings (Ta=25℃) Parameter S EXTVCC Voltage VCCCL1,2 Voltage CL1,2 Voltage SW1,2 Voltage BOOT1,2 Voltage BOOT1,2-SW1,2 Voltage STB, EN1,2 Voltage VREG5,5A VREG33 VREG SS1,2､FB1,2 ymbol EXTVCC VCCCL1,2 CL1,2 SW1,2 BOOT1,2 BOOT1,2-SW1,2 7 STB, EN1,2 VREG5,5A 7 33 SS1,2､FB1,2 Rating 34 34 *1 *1 Unit Parameter S COMP1,2 Voltage ymbol COMP1,2 DET1,2 RT､SYNC Rating Unit V V V V V DET1,2 Voltage RT､SYNC Voltage VREG5 V 34 34 40 *1 *1 0.
875 （HQFN36V） Power Dissipation Pd 1.
1 （VQFP48C） *2 *2 W *1 V V V W VCC VREG5 VREG5 V V Operating temperature Storage temperature Junction temperature Topr Tstg Tj +150 -40 to +105 -55 to +150 ℃ ℃ ℃ *1 Regardless of the listed rating, do not exceed Pd in any circumstances.
*2 Mounted on a 70mm x 70mm x 0.
8mm glass-epoxy board.
De-rated at 7.
44mW/℃（HQFN36V） or 8.
8mW/℃（VQFP48C） above 25℃.
Sep.
2008 http://www.
Datasheet4U.
com ●Operating conditions (Ta=25℃) Parameter S Input volta...


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