ZL8801ALAFT7A

$10.03

Description：IC REG CTRLR BUCK PMBUS 44QFN
Series：Digital-DC™
Mfr：Renesas Electronics Corporation
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:5269f8313f6f Category: DC DC Switching Controllers Brand: Renesas Electronics Corporation

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Product introduction

Product Detailed Parameters

Description：IC REG CTRLR BUCK PMBUS 44QFN
Series：Digital-DC™
Mfr：Renesas Electronics Corporation
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：PWM Signal
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Number of Outputs：2
Output Phases：2
Voltage - Supply (Vcc/Vdd)：4.5V ~ 14V
Frequency - Switching：200kHz ~ 1.33MHz
Duty Cycle (Max)：-
Synchronous Rectifier：No
Clock Sync：Yes
Serial Interfaces：PMBus
Control Features：Current Limit, Enable, Power Good, Tracking
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：44-VFQFN Exposed Pad
Supplier Device Package：44-QFN (7x7)
Grade：-
Qualification：-

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ZL8801ALAFT7A

Overview

The ZL8801ALAFT7A is a dual-phase digital DC/DC controller from the Digital-DC series by Renesas Electronics Corporation. It utilizes ChargeMode control for compensation-free stability and fast transient response. The device operates with an input voltage range of 4.5V to 14V and supports output voltages from 0.54V to 5.5V. It features a switching frequency range of 200kHz to 1.33MHz and includes a 44-QFN (7x7) package. Key specifications include 1% output voltage accuracy, cycle-by-cycle inductor peak current protection, and nonvolatile memory for parameter storage.

Feature Summary

ChargeMode control provides compensation-free design stability and rapid transient response within a single switching cycle.
Proprietary single-wire DDC serial bus enables complex functions like inter-IC phase current balancing and fault spreading.
Integrated 10-bit monitor ADC measures input/output parameters including voltage, current, and temperature.
Comprehensive digital fault protection covers overvoltage, undervoltage, over-temperature, and MOSFET driver faults.

Applications

High-density server power supplies
Telecommunications infrastructure equipment
Industrial automation systems

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS3 compliance and moisture sensitivity level requirements during handling. Review official datasheets for pinout and thermal characteristics before finalizing PCB layout. Ensure supply chain continuity planning as availability may be limited.

Selection Notes

Select this controller for designs requiring high efficiency and minimal output capacitance. The dual-phase architecture suits moderate current applications, while parallel operation supports higher loads. Consider the 44-QFN package for space-constrained layouts. Evaluate the need for DDC communication if integrating with other digital power ICs for sequencing.

Part Context

This component belongs to the ZL8801 family of digital power controllers. It represents Intersil's legacy technology now managed by Renesas. The device replaces traditional analog PWM controllers by offering programmable parameters via PMBus or DDC interfaces, allowing for optimized performance without external compensation networks.