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300kHz Dual, 180 Out-of-Phase, Step-Down PWM Controller

Package Information

Pkg. Type QSOP
Pkg. Code MLP
Pitch (mm) 0.64
Lead Count (#) 24
Pkg. Dimensions (mm) 8.64 x 3.94 x 1.55

Environmental & Export Classifications

ECCN (US) EAR99
RoHS (ISL6440IAZ-TK) Download
Moisture Sensitivity Level (MSL) 2
Pb (Lead) Free Yes
HTS (US)

Product Attributes

Pkg. Type QSOP
Carrier Type Reel
Bias Voltage Range (V) 5 - 5
DDR Capable No
Input Voltage (Max) (V) 24
Input Voltage (Min) (V) 4.5
Lead Count (#) 24
Length (mm) 8.6
Linear Output No
MOQ 3000
Moisture Sensitivity Level (MSL) 2
Output Current 1 (Max) (A) 10
Output Voltage (Min) (V) 0.8
Output Voltage 1 (Max) (V) 24
Outputs (#) 2
Pb (Lead) Free Yes
Pb Free Category Pb-Free 100% Matte Tin Plate w/Anneal-e3
Pitch (mm) 0.6
Pkg. Dimensions (mm) 8.6 x 3.9 x 1.55
Qualification Level Standard
Switching Frequency Range (Typical) (kHz) 300 - 300
Temp. Range -40 to +85°C
Thickness (mm) 1.55
Width (mm) 3.9

Description

The ISL6440 is a high-performance, dual-output PWM controller optimized for converting wall adapter, battery or network intermediate bus DC input supplies into the system supply voltages required for a wide variety of applications. Each output is adjustable down to 0. 8V. The two PWMs are synchronized 180o out of phase reducing the RMS input current and ripple voltage. The ISL6440 incorporates several protection features. An adjustable overcurrent protection circuit monitors the output current by sensing the voltage drop across the lower MOSFET. Hiccup mode overcurrent operation protects the DC/DC components from damage during output overload/short circuit conditions. Each PWM has an independent logic-level shutdown input (SD1 and SD2). A single PGOOD signal is issued when soft-start is complete on both PWM controllers and their outputs are within 10% of the set point. Thermal shutdown circuitry turns off the device if the junction temperature exceeds +150°C.