BD9540EFV-E2 The ROHM Semiconductor BD9540EFV-E2 is a 2-channel synchronous buck switching controller. It operates with an input voltage range of 7.5V to 20V and supports output voltages up to 5.5V.
Mfr Part #:

BD9540EFV-E2

Available from 1 distributors
Mfr Name: ROHM Semiconductor
ROHM Semiconductor
The ROHM Semiconductor BD9540EFV-E2 is a 2-channel synchronous buck switching controller. It operates with an input voltage range of 7.5V to 20V and supports output voltages up to 5.5V.
✓ Total Stock: 39,427 pcs
$ Price Range: $0.75

BD9540EFV-E2 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
39,427 pcs
39427 pcs On Request 1 On Request On Request 1336+ On Request On Request

BD9540EFV-E2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Output Voltage
Protection Features
Supplier Device Package
Synchronous Rectifier
Topology
Voltage

BD9540EFV-E2 Description

Short technical summary and product information.

The BD9540EFV-E2 from ROHM Semiconductor is a high-performance, 2-channel synchronous switching regulator controller designed for applications requiring low output voltages. It utilizes external N-MOSFETs for high efficiency and incorporates Rohm's proprietary H3RegTM technology for ultra-high transient response.

 

Key electrical specifications include an input voltage range of 7.5V to 20V and a maximum output voltage of 5.5V. The controller features built-in protection mechanisms such as Thermal Shut Down (TSD), Under-Voltage Lock-Out (UVLO), Adjustable Over Current Protection (OCP), Over Voltage Protection (OVP), and Short Circuit Protection (SCP). It also includes a soft start function to minimize inrush current during startup.

 

This device is available in a 28-VSSOP package with an exposed pad and is designed for surface mounting. Its operating temperature range is -20°C to 100°C (TA). The BD9540EFV-E2 is suitable for applications like LCD-TVs, game consoles, and desktop PCs, particularly for DRAM and graphics chip power supplies.

BD9540EFV-E2 Quick Information

Product Type: DC DC Switching Controller
Series: BD9540EFV
Canonical Name: BD9540EFV-E2 2-Channel Synchronous Buck Switching Controller
Subcategory: Power Management (PMIC)

BD9540EFV-E2 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BD9540EFV-E2 Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

BD9540EFV-E2 Features

  • 2-channel synchronous buck controller
  • H3RegTM for ultra-high transient response
  • Input voltage 7.5V to 20V
  • Output voltage up to 5.5V
  • Built-in protection features

BD9540EFV-E2 Applications

  • Designed for DRAM power supplies
  • Used in graphics chip power supplies
  • Suitable for LCD-TVs
  • Applications in game consoles
  • Used in desktop PCs

BD9540EFV-E2 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the BD9540EFV-E2?

Operating input voltage range is 7.5V to 20V, with an absolute maximum rating of 24V.

What package does the BD9540EFV-E2 come in?

The BD9540EFV-E2 is available in a 28-VSSOP (0.173", 4.40mm Width) Exposed Pad package, also referred to as 28-HTSSOP-B.

What is the operating temperature range of the BD9540EFV-E2?

The operating temperature range is -20°C to +100°C.

What is the output voltage of the BD9540EFV-E2?

The maximum output voltage is 5.5V.

How many outputs does the BD9540EFV-E2 have?

It has 2 outputs.

What is the topology of the BD9540EFV-E2?

It is a buck (step-down) topology.

What protection features are included?

Thermal shutdown, under-voltage lockout, adjustable over current protection, over voltage protection, and short circuit protection.

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