ZL8800ALAFT

$6.72

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

SKU:f712440f4b0d 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)
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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ZL8800ALAFT

Overview

The ZL8800ALAFT is a dual-channel or dual-phase digital DC/DC controller from the Digital-DC series, manufactured by Renesas Electronics Corporation. It operates with an input voltage range of 4.5V to 14V and supports output voltages from 0.54V to 5.5V. The device features a switching frequency range of 200kHz to 1.33MHz and utilizes ChargeMode control for transient response. It includes two PWM outputs in a 44-QFN (7x7) package. Key specifications include a quiescent current of 26mA, peak efficiency of 94%, and operation within a temperature range of -40°C to +85°C.

Feature Summary

ChargeMode control enables compensation-free modulation for fast transient response and stability with minimal output capacitance.
Digital-DC serial bus allows communication with other Intersil digital power ICs for sequencing and fault spreading.
Integrated nonvolatile memory stores operating parameters and fault events for persistent configuration.

Applications

High-current applications requiring dual-phase configurations
Systems utilizing proprietary single wire Digital-DC serial bus communication
Designs requiring minimum output capacitance for board space savings

Procurement Notes

Verify component authenticity as this part is discontinued. Check for available stock from authorized distributors or secondary markets. Confirm RoHS compliance status and moisture sensitivity level before procurement. Ensure compatibility with existing design constraints due to end-of-life status.

Selection Notes

Select this controller for applications needing dual-channel or dual-phase digital control with PMBus compatibility. Consider its ChargeMode technology for designs prioritizing transient performance and reduced passive component count. Evaluate the 44-QFN package suitability for space-constrained layouts.

Part Context

The ZL8800ALAFT belongs to the ZL8800 series of digital DC/DC controllers originally developed by Intersil and later acquired by Renesas. This series is characterized by its fully digital control loop and support for complex power management functions via proprietary serial interfaces.