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1.0A, Step-down Switching regulators with Built-in Power MOSFET - BU90054GWZ

The BU90054GWZ are a high efficiency 6MHz synchronous step-down switching regulator with ultra low current PFM mode. It provides up to 1.0A load current and an input voltage range from 3.0V to 5.5V, optimized for battery powered portable applications. BU90054GWZ has a mode control pin that allows the user to select Forced PWM(Pulse Width Modulation) mode or PFM(Pulse Frequency Modulation) and PWM auto change mode utilized power save operation at light load current.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number | BU90054GWZ-E2
Status | Active
Package | UCSP30L1
Unit Quantity | 6000
Minimum Package Quantity | 6000
Packing Type | Taping
RoHS | Yes

Specifications:

Grade

Standard

ch

1

Integrated FET / Controller

Integrated FET

Buck / Boost / Buck-Boost / Inverting

Buck

Synchronous / Nonsynchronous

Synchronous

Vin1(Min.)[V]

2.3

Vin1(Max.)[V]

5.5

Vout1(Min.)[V]

1.8

Vout1(Max.)[V]

1.8

Iout1(Max.)[A]

1.0

SW frequency(Max.)[MHz]

6.0

EN

Yes

PGOOD

No

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

85

Features:

  • Fast transient response
  • Automatic PFM/PWM operation
  • Forced PWM operation
  • Internal Soft Start
  • Under voltage lockout
  • Over current protection
  • Thermal shutdown