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Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller

Package Information

CAD Model:View CAD Model
Pkg. Type:QFN
Pkg. Code:LFJ
Lead Count (#):16
Pkg. Dimensions (mm):5.0 x 5.0 x 0.90
Pitch (mm):0.8

Environmental & Export Classifications

ECCN (US)EAR99
HTS (US)8542.39.0090
RoHS (ISL6522IRZ-T)Download
Moisture Sensitivity Level (MSL)3
Pb (Lead) FreeYes

Product Attributes

Pkg. TypeQFN
Carrier TypeReel
Country of AssemblyMALAYSIA
Country of Wafer FabricationUSA
Bias Voltage Range (V)12 - 12
IS (Typical)5
Input Voltage (Max) (V)12
Input Voltage (Min) (V)2.5
Lead Count (#)16
Length (mm)5
MOQ6000
Moisture Sensitivity Level (MSL)3
Output Current (Max) [Rail 1] (A)25
Output Voltage (Max) (V)12
Output Voltage (Min) (V)0.8
Pb (Lead) FreeYes
Pb Free CategoryPb-Free 100% Matte Tin Plate w/Anneal-e3
Pitch (mm)0.8
Pkg. Dimensions (mm)5.0 x 5.0 x 0.90
Qualification LevelStandard
Temp. Range (°C)-40 to +85°C
Thickness (mm)0.9
VBIAS (Max) (V)12
VBIAS (Min) (V)12
Width (mm)5

Description

The ISL6522 provides complete control and protection for a DC-DC converter optimized for high-performance microprocessor applications. It is designed to drive two N-Channel MOSFETs in a synchronous rectified buck topology. The ISL6522 integrates all of the control, output adjustment, monitoring and protection functions into a single package. The output voltage of the converter can be precisely regulated to as low as 0.8V, with a maximum tolerance of ±1% over temperature and line voltage variations. The ISL6522 provides simple, single feedback loop, voltage-mode control with fast transient response. It includes a 200kHz free-running triangle-wave oscillator that is adjustable from below 50kHz to over 1MHz. The error amplifier features a 15MHz gain-bandwidth product and 6V/µs slew rate which enables high converter bandwidth for fast transient performance. The resulting PWM duty ratio ranges from 0-100%. The ISL6522 protects against overcurrent conditions by inhibiting PWM operation. The ISL6522 monitors the current by using the rDS(ON) of the upper MOSFET which eliminates the need for a current sensing resistor.