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瑞萨电子 (Renesas Electronics Corporation)
Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

封装信息

CAD 模型: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

环境和出口类别

Moisture Sensitivity Level (MSL)3
Pb (Lead) FreeYes
RoHS (ISL6526AIRZ)下载
ECCN (US)
HTS (US)

产品属性

Lead Count (#)16
Carrier TypeTube
Moisture Sensitivity Level (MSL)3
Pb (Lead) FreeYes
Pb Free CategoryPb-Free 100% Matte Tin Plate w/Anneal-e3
Temp. Range (°C)-40 to +85°C
Bias Voltage Range (V)3.3 - 5
Input Voltage (Max) (V)5
Input Voltage (Max) [Rail 1] (V)5 - 5
Input Voltage (Min) (V)2.5
Input Voltage (Min) [Rail 1] (V)2.5
Lead CompliantNo
Length (mm)5
MOQ1200
Output Voltage (Max) (V)5
Output Voltage (Min) (V)0.8
Output Voltage (Min) [Rail 1] (V)0.8
Outputs (#)1
Parametric CategoryBuck Controllers (External FETs)
Pitch (mm)0.8
Pkg. Dimensions (mm)5.0 x 5.0 x 0.90
Pkg. TypeQFN
Price (USD)$2.23698
Qualification LevelStandard
Simulation Model AvailableiSim
Tape & ReelNo
Thickness (mm)0.9
Topology [Rail 1]Buck
VBIAS (Max) (V)5
VBIAS (Min) (V)3.3
Width (mm)5

描述

The ISL6526, ISL6526A make simple work out of implementing a complete control and protection scheme for a DC/DC stepdown converter. Designed to drive N-Channel MOSFETs in a synchronous buck topology, the ISL6526, ISL6526A integrate the control, output adjustment, monitoring and protection functions into a single package. The ISL6526, ISL6526A provide simple, single feedback loop, voltage-mode control with fast transient response. The output voltage can be precisely regulated to as low as 0. 8V, with a maximum tolerance of ±1. 5% over-temperature and line voltage variations. A fixed frequency oscillator reduces design complexity, while balancing typical application cost and efficiency. 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 cycles range from 0% to 100%. Protection from overcurrent conditions is provided by monitoring the rDS(ON) of the upper MOSFET to inhibit PWM operation appropriately. This approach simplifies the implementation and improves efficiency by eliminating the need for a current sense resistor.