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

Package Information

Pkg. Type QFN
Pkg. Code LFJ
Pitch (mm) 0.8
Lead Count (#) 16
Pkg. Dimensions (mm) 5.00 x 5.00 x 0.90

Environmental & Export Classifications

ECCN (US) EAR99
HTS (US) 8542390001
RoHS (ISL6522CRZ-TK) Download
Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes

Product Attributes

Pkg. Type QFN
Carrier Type Reel
Price (USD) | 1ku 2.45231
Bias Voltage Range (V) 12 - 12
IS (Typical) 5 mA
Input Voltage (Max) (V) 12
Input Voltage (Min) (V) 2.5
Lead Count (#) 16
Length (mm) 5.0
MOQ 1000
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) Free Yes
Pb Free Category Pb-Free 100% Matte Tin Plate w/Anneal-e3
Pitch (mm) 0.8
Pkg. Dimensions (mm) 5.0 x 5.0 x 0.90
Qualification Level Standard
Temp. Range 0 to +70°C
Thickness (mm) 0.90
VBIAS (Max) (V) 12
VBIAS (Min) (V) 12
Width (mm) 5.0

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.