The ZL8802 is a dual output or dual phase digital DC/DC controller. Each output can operate independently or be used together in a dual phase configuration for high current applications supporting 2-, 4-, 6-, and 8-phase operation with up to four ZL8802 controllers. The ZL8802 supports a wide range of output voltages (0. 54V to 5. 5V) operating from input voltages as low as 4. 5V up to 14V. With the fully digital ChargeMode control, the ZL8802 will respond to a transient load step within a single switching cycle. This unique compensation-free modulation technique allows designs to meet transient specifications with minimum output capacitance, thus saving cost and board space. The proprietary single-wire Digital-DC™ (DDC) serial bus enables the ZL8802 to communicate between other Intersil digital power ICs. By using the DDC, the ZL8802 achieves complex functions such as inter-IC phase current balancing, sequencing, and fault spreading. This eliminates complicated power supply managers with numerous external discrete components. The ZL8802 features fast output overcurrent protection. The input voltage, output voltages, and DrMOS/MOSFET driver supply voltages are overvoltage and undervoltage protected. Two external temperature sensors and one internal temperature sensor are available for temperature monitoring, one of which can be configured for under- and over-temperature protection. A snapshot parametric capture feature allows users to take a snapshot of operating and fault data during normal or fault conditions. Integrated Low Dropout (LDO) regulators allow the ZL8802 to operate from a single input supply eliminating the need for additional linear regulators. The VDRV LDO output can be used to power external drivers or DrMOS devices. With full PMBus compliance, the ZL8802 is capable of measuring and reporting input voltage, input current, output voltage, output current, as well as the device's internal temperature, two external temperatures, and an auxiliary voltage or temperature input.


  • Unique compensation-free design – always stable
  • Output voltage range: 0.54V to 5.5V
  • Input voltage range: 4.5V to 14V
  • 1% output voltage accuracy over line, load, and temperature
  • ChargeMode control achieves fast transient response, reduced output capacitance, and provides output stability without compensation
  • 2-channel output, 2-, 4-, 6-, or 8-phase output with two, three, or four devices
  • Switching frequency range 200kHz to 1.33MHz
  • Proprietary single-wire DDC (Digital-DC) serial bus enables voltage sequencing and fault spreading with other Intersil digital power ICs
  • Inductor peak and averaged over and undercurrent protection
  • Digital fault protection for output voltage UV/OV, input voltage UV/OV, temperature, and MOSFET driver voltage
  • Accurate average output current measurement with adjustable gain settings for sensing with SPS current monitor outputs or high current, low DCR inductors
  • Monitor ADC measures input voltage, input current, output voltage, driver voltage, internal and external temperature
  • Nonvolatile memory for storing operating parameters and fault events
  • PMBus compliant

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active QFN Reel 4000
Active QFN Reel 250
Active QFN Reel 1000

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ZL8802 Datasheet Datasheet PDF 2.94 MB
User Guides & Manuals
ISLUSBEVAL1Z User's Manual Manual PDF 257 KB
PowerNavigator User Guide for Digital Multiphase Manual PDF 5.52 MB
PowerNavigator User Guide for POL Manual PDF 4.68 MB
Production Configuration Utility User Guide Manual PDF 714 KB
PMBus Interface Install Guide - Win7 x86 and x64 Manual PDF 693 KB
ZLUSBEVAL3Z User Guide Manual PDF 393 KB
Application Notes & White Papers
Five Easy Steps to Create a Multi-Load Power Solution White Paper PDF 846 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
PCN16089A - Alternate assembly facility of the listed Intersil DFN / QFN packaged products Product Change Notice PDF 124 KB
Production Configuration Utility v5.4.139 Software ZIP 120.25 MB
PowerNavigator™ Software v5.4.139 Software ZIP 96.49 MB
PIN19028 - Q3 Cy 19 Price Increase Notice Price Increase Notice PDF 208 KB
PMBus Conversion Software Tool Library ZIP 54.93 MB
ZLHLD Software v2.9 Library ZIP 119.19 MB
CompZL Software v1.5.1 Library ZIP 59.25 MB
PowerPilot Software GUI Library ZIP 435 KB
USB Drivers for the ZLUSBEVAL1Z (Windows XP/Vista) Library ZIP 166 KB
USB Drivers for the ZLUSBEVAL1Z (Windows 7) Library ZIP 1.75 MB
Digital-DC Frequently Asked Questions (FAQ) Other PDF 194 KB

Software & Tool Pages

Title Type Description Company
PowerNavigator Software Software Package Renesas' PowerNavigator™ software allows simple configuration and monitoring of multiple Digital-DC devices using a PC with a USB interface. Renesas