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ADP5303ACBZ-1-R7
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Product Detailed Parameters
- Description：IC REG BCK PRG 50MA/500MA 9WLCSP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Programmable
- Number of Outputs：1
- Voltage - Input (Min)：2.15V
- Voltage - Input (Max)：6.5V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：5V
- Current - Output：50mA, 500mA
- Frequency - Switching：2MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：9-WFBGA, WLCSP
- Supplier Device Package：9-WLCSP (1.87x1.65)
- Grade：-
- Qualification：-
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Overview
The ADP5303ACBZ-1-R7 is an ultralow power (ULP) synchronous buck DC-to-DC converter manufactured by Analog Devices Inc. It features a high-efficiency step-down topology with a fixed 2 MHz switching frequency. The device supports an input voltage range of 2.15 V to 6.5 V and provides a single adjustable output voltage ranging from 800 mV to 5 V. It delivers a maximum output current of 500 mA, with an additional 50 mA available for other functions or auxiliary loads. The component operates within a junction temperature range of -40°C to +125°C and is housed in a compact 9-WLCSP package.
Feature Summary
- Integrates a high-efficiency synchronous buck regulator optimized for ultralow power consumption in portable applications.
- Includes an integrated over-discharge protection circuit that disconnects the battery when voltage drops below a threshold.
- Features a VINOK signal that indicates when the input supply is within the valid operating range.
Applications
- Wearable electronic devices requiring extended battery life
- Portable medical equipment
- IoT sensor nodes
Procurement Notes
Verify the specific suffix 'R7' confirms the reel packaging format required for automated assembly processes. Confirm the 'CBZ' marking corresponds to the correct WLCSP variant and thermal characteristics. Ensure compatibility with the target PCB footprint for the 9-ball wafer-level chip scale package. Cross-reference the manufacturer's latest datasheet revision to confirm pinout integrity and electrical specifications before finalizing procurement orders.
Selection Notes
Select this component when system design demands minimal quiescent current alongside moderate load capabilities up to 500 mA. The fixed 2 MHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the integrated over-discharge feature if direct battery connection without external monitoring is required. Evaluate the WLCSP package size constraints against available board real estate for dense layouts.
Part Context
This part belongs to the ADP5301/ADP5303 family of ultralow power regulators designed for battery-operated systems. Unlike the ADP5301, which lacks over-discharge protection, the ADP5303 variant includes this safety feature. It serves as a power management solution for applications where space and energy efficiency are critical constraints.
Replacement Considerations
The ADP5301ACBZ-1-R7 is a related variant but lacks the over-discharge protection feature found in the ADP5303. Verify if the absence of over-discharge protection impacts system safety requirements before substituting.
