Skip to main content
Renesas Electronics Corporation
Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller

Package Information

CAD Model:View CAD Model
Pkg. Type:SOICN
Pkg. Code:MSU
Lead Count (#):14
Pkg. Dimensions (mm):8.7 x 3.9 x 0.00
Pitch (mm):1.3

Environmental & Export Classifications

Moisture Sensitivity Level (MSL)
Pb (Lead) FreeNo
ECCN (US)
HTS (US)

Product Attributes

Pkg. TypeSOICN
Carrier TypeReel
Bias Voltage Range (V)12 - 12
IS (Typical)5
Input Voltage (Max) (V)12
Input Voltage (Min) (V)2.5
Lead Count (#)14
Length (mm)8.7
MOQ2500
Output Current (Max) [Rail 1] (A)25
Output Voltage (Max) (V)12
Output Voltage (Min) (V)0.8
Pb (Lead) FreeNo
Pitch (mm)1.3
Pkg. Dimensions (mm)8.7 x 3.9 x 0.00
Qualification LevelStandard
Temp. Range (°C)0 to +70°C
VBIAS (Max) (V)12
VBIAS (Min) (V)12
Width (mm)3.9

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.