ADP2147ACBZ-150-R7 Internal Power Switch Buck Regulators by Analog Devices

Status: Production
Series: ADP2147
RoHS: Compliant
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The ADP2147 is a high efficiency, low quiescent current, step-down (buck) dc-to-dc regulator with an output voltage that can be switched between two different settings under the control of a select pin. The total solution requires only three tiny external components.The buck regulator automatically switches operating modes, depending on the load current level, to maximize efficiency. At high output loads, the buck regulator operates in PWM mode. When the load current falls below a predefined threshold, the regulator operates in power save mode (PSM), improving the light-load efficiency.The ADP2147 runs on input voltages of 2.3 V to 5.5 V, which allows for single lithium or lithium polymer cells, multiple alkaline or NiMH cells, PCMCIA, USB, and other standard power sources. The maximum load current of 800 mA is achievable across the input voltage range.The ADP2147 is available with fixed output voltages from 0.8 V to 3.3 V. All versions include an internal power switch and synchronous rectifier for minimal external part count and high efficiency. The ADP2147 has an internal soft start and is internally compensated. During logic controlled shutdown, the input is disconnected from the output, and the ADP2147 draws less than 0.2 μA (typical) from the power source.Other key features include undervoltage lockout to prevent deep battery discharge and soft start to prevent input current overshoot at startup. The ADP2147 is available in a 6-ball WLCSP.

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Prices starting from US$0.96

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Features

Input voltage: 2.3 V to 5.5 V
Peak efficiency: 95%
3 MHz fixed frequency operation
Low quiescent current: 23 μA
Ultralow shutdown current: 0.2 μA (typical)
VSEL pin for simple dynamic voltage scaling (DVS) 
100% duty cycle low dropout mode
Internal synchronous rectifier, compensation, and soft start
Current overload and thermal shutdown protection
Small, 6-ball, 1 mm × 1.5 mm WLCSP package

Alternative Descriptions

Buck 1.2, 1.0Vo (SEL=0,1) SVS | Analog Devices


Frequently Asked Questions

Where can I find additional details, specifications and documents for a ADP2147ACBZ-150-R7?

Additional datasheets, footprints and schematics for ADP2147ACBZ-150-R7 are listed on our Part Details page. You can also find images and similar parts to ADP2147ACBZ-150-R7 on this page.

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What category does ADP2147ACBZ-150-R7 fall under?

The ADP2147ACBZ-150-R7 is listed under Internal Power Switch Buck Regulators.

Can I view similar or alternative parts?

You can view similar parts to ADP2147ACBZ-150-R7 when available in the Internal Power Switch Buck Regulators range under the specifications section at the bottom of the details page.

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Is the ADP2147ACBZ-150-R7 RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

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