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BU90003GWZ-E2 The ROHM Semiconductor BU90003GWZ-E2 is a synchronous buck DC/DC converter. It provides a fixed 1.2V output at up to 1A current.
Mfr Part #:

BU90003GWZ-E2

Available from 2 distributors
Mfr Name: ROHM Semiconductor
ROHM Semiconductor
The ROHM Semiconductor BU90003GWZ-E2 is a synchronous buck DC/DC converter. It provides a fixed 1.2V output at up to 1A current.
✓ Total Stock: 2,147 pcs
$ Price Range: $0.16

BU90003GWZ-E2 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
2,127 pcs
On Request
2127 pcs On Request 1 On Request On Request 1225+ On Request On Request
PROSOFT ELECTRONICS ✓
Non-Authorised Inventory information
20 pcs
On Request
20 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

BU90003GWZ-E2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Current
Output Type
Output Voltage
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage
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BU90003GWZ-E2 Description

Short technical summary and product information.

The ROHM Semiconductor BU90003GWZ-E2 is a synchronous buck DC/DC converter designed for efficient power management in portable applications. This device features an integrated FET design, offering a compact solution for space-constrained designs.

 

Key electrical specifications include a fixed output voltage of 1.2V and a maximum output current of 1A. The converter operates with an input voltage range from 2.3V to 5.5V and a switching frequency of 4MHz, enabling the use of smaller external components. Protection features such as Under Voltage Lock Out (UVLO), Thermal Shutdown (TSD), and Over Current Protection (OCP) are integrated for enhanced reliability.

 

An Enable (EN) pin allows for simple ON/OFF control to minimize standby current, while a MODE pin facilitates selection between fixed PWM operation and automatic PFM/PWM switching for improved light-load efficiency. The BU90003GWZ-E2 is supplied in a 6-WLCSP package, suitable for surface mounting.

 

Applications for this converter include smartphones, portable devices, compact DC/DC modules, and USB accessories where efficient and stable voltage regulation is required.

BU90003GWZ-E2 Quick Information

Product Type: DC DC Switching Regulator
Canonical Name: BU90003GWZ-E2 Synchronous Buck Converter
Subcategory: Buck Converter

BU90003GWZ-E2 Compliance

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

BU90003GWZ-E2 Estimated Pricing

Qty Low High
1+ $0.16 $0.16

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

BU90003GWZ-E2 Features

  • Synchronous buck DC/DC converter.
  • Fixed 1.2V output voltage.
  • 1A maximum output current.
  • 2.3V to 5.5V input voltage range.
  • 6-WLCSP surface mount package.

BU90003GWZ-E2 Applications

  • Ideal for smartphone power.
  • Suitable for portable devices.
  • Used in compact DC/DC modules.
  • Applicable for USB accessories.

BU90003GWZ-E2 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the BU90003GWZ-E2?

2.3V to 5.5V

What is the output voltage of this regulator?

1.2V

What is the maximum output current?

1A

What is the switching frequency of the BU90003GWZ-E2?

3.6 MHz to 4.4 MHz

What package type is this device available in?

6-WLCSP

What is the operating temperature range?

-40°C to 85°C (TA)

What is the mounting type for the BU90003GWZ-E2?

Surface Mount

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