ADP5034ACPZ-3-R7

Overview

The ADP5034ACPZ-3-R7 is a synchronous buck regulator from Analog Devices, housed in a 24-pin LFCSP package. It features four adjustable outputs with current ratings of 1.2 A and 300 mA. The device operates within an input voltage range of 2.3 V to 5.5 V and supports a switching frequency of 3 MHz. It includes high UVLO thresholds and active pull-down capabilities. The component functions across a temperature range of -40°C to +125°C.

Feature Summary

• Integrates four synchronous buck regulators with adjustable output voltages
• Features high undervoltage lockout (UVLO) thresholds for robust startup control
• Includes active pull-down mechanisms on enable pins for defined power states
• Supports forced PWM mode operation via the MODE pin for low-noise applications

Applications

• Processor system power management requiring multiple regulated rails
• Portable devices utilizing single-cell lithium-ion battery inputs
• Industrial equipment needing compact DC-DC conversion solutions
• Embedded systems requiring precise enable control and low quiescent current

Procurement Notes

Verify the specific suffix '-3' confirms the high UVLO configuration before procurement. Confirm the LFCSP-24 package type matches your PCB footprint requirements. Check for moisture sensitivity level compliance if storage conditions exceed manufacturer recommendations. Ensure the reel quantity aligns with production volume needs. Validate that the 3 MHz switching frequency fits your electromagnetic interference constraints.

Selection Notes

Select this variant when high UVLO thresholds are required to prevent premature activation during power ramp-up. The LFCSP-24 package offers a compact solution for space-constrained designs. Consider the 1.2 A and 300 mA output currents to determine if additional external components are needed for thermal management. Evaluate the 3 MHz frequency against inductor size and efficiency trade-offs for your specific application load profile.

Part Context

This component belongs to the ADP5034 family of multi-output power management ICs. It is designed for applications requiring multiple regulated supplies from a single input source. The family shares common architecture but varies in UVLO settings and package options. The ADP5034 series is widely used in portable electronics and industrial control systems where board space and efficiency are critical design parameters.

Replacement Considerations

Check for ADP5034ACPZ-2-R7 if low UVLO is acceptable instead of high UVLO. Verify ADP5034ACPZ-R7 for general purpose applications without specific UVLO requirements. Ensure any substitute maintains the 24-pin LFCSP footprint and 3 MHz switching frequency. Confirm output current capabilities match the original 1.2 A and 300 mA specifications.