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瑞萨电子 (Renesas Electronics Corporation)
Automotive Dual Synchronous Buck Controller with Integrated Drivers

封装信息

CAD 模型:View CAD Model
Pkg. Type:WFQFN
Pkg. Code:LCA
Lead Count (#):32
Pkg. Dimensions (mm):5.0 x 5.0 x 0.85
Pitch (mm):0.5

环境和出口类别

Moisture Sensitivity Level (MSL)1
Pb (Lead) FreeYes
ECCN (US)EAR99
HTS (US)8542.39.0090
RoHS (ISL78264ARZ)下载

产品属性

Lead Count (#)32
Carrier TypeTube
Moisture Sensitivity Level (MSL)1
Pb (Lead) FreeYes
Pb Free CategoryNickel/Palladium/Gold-Silver - e4
Temp. Range (°C)-40 to +125°C
Country of AssemblyPHILIPPINES, MALAYSIA
Country of Wafer FabricationTAIWAN
Bias Voltage Range (V)5 - 5
Control TypePeak Current Mode
IQ [Rail 1] (µA)6
Input Voltage (Max) [Rail 1] (V)42 - 42
Input Voltage (Max) [Rail 2] (V)42 - 42
Input Voltage (Min) [Rail 1] (V)3.75
Input Voltage (Min) [Rail 2] (V)0.8
Length (mm)5
MOQ600
Output Current (Max) [Rail 1] (A)20
Output Current 1 (Max) (A)10
Output Current 2 (Max) (A)2
Output Voltage (Max) [Rail 1] (V)5
Output Voltage (Max) [Rail 2] (V)32
Output Voltage (Min) [Rail 1] (V)0.8
Output Voltage 1 (Max) (V)5
Output Voltage 2 (Max)32
Outputs (#)2
Parametric CategoryBuck Controllers (External FETs)
Peak Efficiency (%)95
Pitch (mm)0.5
Pkg. Dimensions (mm)5.0 x 5.0 x 0.85
Pkg. TypeWFQFN
Price (USD)$3.18452
Qualification LevelAutomotive
Simulation Model AvailableNo
Switching Frequency Range (Typical) (kHz)200 - 2200
Thickness (mm)0.85
Topology [Rail 1]Buck
Topology [Rail 2]Buck
Width (mm)5

描述

The ISL78264 is a dual buck controller that can operate across a wide VIN range of 3.75V to 42V. It is designed to support wide duty-cycle operation for switching frequencies from 200kHz up to 2.2MHz. To mitigate EMI, it supports synchronization to an external clock or programmable spread spectrum clocking. Its current-mode modulator is ideally suited to tolerate severe line transients. Also, the ISL78264 supports dropout operation and low 25ns on-time to operate through automotive cranking and load dump pulses.

The ISL78264 integrates robust MOSFET drivers and readily supports step-down applications requiring high output currents in normal operation. For applications that must also sustain extremely low power, always-on operation, its energy conservation mode can reduce operating current to 6µA. Integrated feedback for VOUT1 is provided for 3.3V or 5V applications to eliminate the current otherwise flowing in external feedback resistors. An automatic switchover to an external supply is also supported to maximize efficiency. A blocking diode is activated after startup to prevent the external supply from back-biasing a low input voltage at VIN.

The ISL78264 is qualified to AEC-Q100 Grade 1, specified to operate across an ambient temperature range of -40°C to 125°C, and is available in a 5mm x 5mm, 32 Ld WFQFN (Wettable Flank) package.