Skip to main content
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):5.00 x 5.00 x 0.90
Pitch (mm):0.8

Environmental & Export Classifications

Moisture Sensitivity Level (MSL)3
Pb (Lead) FreeYes
ECCN (US)EAR99
HTS (US)8542.39.0090
RoHS (ISL6522BIRZ-TK)Download

Product Attributes

Lead Count (#)16
Carrier TypeReel
Moisture Sensitivity Level (MSL)3
Pitch (mm)0.8
Pkg. Dimensions (mm)5.0 x 5.0 x 0.90
Pb (Lead) FreeYes
Pb Free CategoryPb-Free 100% Matte Tin Plate w/Anneal-e3
Temp. Range (°C)-40 to +85°C
Country of AssemblyMALAYSIA
Country of Wafer FabricationUNITED STATES
Bias Voltage Range (V)12 - 12
IQ [Rail 1] (µA)5000
IS (Typical)5
Input Voltage (Max) (V)12
Input Voltage (Max) [Rail 1] (V)12 - 12
Input Voltage (Min) (V)2.5
Input Voltage (Min) [Rail 1] (V)2.5
Length (mm)5
MOQ1000
Output Current (Max) [Rail 1] (A)30
Output Voltage (Max) (V)12
Output Voltage (Max) [Rail 1] (V)12
Output Voltage (Min) (V)0.8
Output Voltage (Min) [Rail 1] (V)0.8
Outputs (#)1
Parametric CategoryBuck Controllers (External FETs)
Pkg. TypeQFN
Price (USD)$2.90181
Qualification LevelStandard
Simulation Model AvailableNo
Switching Frequency Range (Typical) (kHz)50 - 1000
Thickness (mm)0.9
Topology [Rail 1]Buck
VBIAS (Max) (V)12
VBIAS (Min) (V)12
Width (mm)5

Description

The ISL6522B 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 ISL6522B 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 ISL6522B 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 ISL6522B protects against overcurrent conditions by inhibiting PWM operation. The ISL6522B monitors the current by using the rDS(ON) of the upper MOSFET which eliminates the need for a current sensing resistor.