20 TSSOP
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
20 TSSOP
20 TSSOP

BD9851EFV-E2

DigiKey Part Number
BD9851EFV-E2TR-ND - Tape & Reel (TR)
BD9851EFV-E2CT-ND - Cut Tape (CT)
BD9851EFV-E2DKR-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
BD9851EFV-E2
Description
IC REG CTRLR BUCK/BST 20HTSSOP-B
Customer Reference
Detailed Description
Buck, Boost Regulator Positive or Negative Output Step-Up, Step-Down DC-DC Controller IC 20-HTSSOP-B
Datasheet
 Datasheet
EDA/CAD Models
BD9851EFV-E2 Models
Product Attributes
Type
Description
Select All
Category
Manufacturer
Rohm Semiconductor
Series
-
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Part Status
Last Time Buy
Output Type
Transistor Driver
Function
Step-Up, Step-Down
Output Configuration
Positive or Negative
Topology
Buck, Boost
Number of Outputs
2
Output Phases
1
Voltage - Supply (Vcc/Vdd)
4V ~ 18V
Frequency - Switching
10kHz ~ 3MHz
Duty Cycle (Max)
-
Synchronous Rectifier
No
Clock Sync
No
Serial Interfaces
-
Control Features
Enable, Frequency Control, Soft Start
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Package / Case
20-VSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package
20-HTSSOP-B
Base Product Number
Product Questions and Answers

See what engineers are asking, ask your own questions, or help out a member of the DigiKey engineering community

In-Stock: 1,595
Check for Additional Incoming Stock
Last Time Buy Date: 2026/03/31
All prices are in JPY
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1¥596.00000¥596
10¥450.40000¥4,504
25¥413.80000¥10,345
100¥373.44000¥37,344
250¥354.21200¥88,553
500¥342.62400¥171,312
1,000¥333.08100¥333,081
* All Digi-Reel orders will add a ¥800 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
2,500¥295.84040¥739,601
Manufacturers Standard Package
Unit Price without JCT:¥596.00000
Unit Price with JCT:¥655.60000