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Dual/n-Phase Buck PWM Controller with Integrated Drivers

Package Information

Lead Count (#) 32
Pkg. Type QFN
Pkg. Code LAZ
Pitch (mm) 0.5
Pkg. Dimensions (mm) 5.00 x 5.00 x 0.90

Environmental & Export Classifications

Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
ECCN (US) EAR99
RoHS (ISL8126CRZ-T7A) Download
HTS (US)

Product Attributes

Pkg. Type QFN
Lead Count (#) 32
Carrier Type Reel
Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
Pb Free Category Pb-Free 100% Matte Tin Plate w/Anneal-e3
Temp. Range 0 to +70°C
Bias Voltage Range (V) 2.97 - 5.60
Droop Yes
Input Voltage (Max) (V) 26.5
Input Voltage (Max) [Rail 1] (V) 26.5 - 26.5
Input Voltage (Min) (V) 3
Input Voltage (Min) [Rail 1] (V) 3
Integrated MOSFET Driver (s) Yes
Length (mm) 5.0
MOQ 250
Output Voltage (Max) (V) 23.85
Output Voltage (Min) (V) 0.6
Output Voltage (Min) [Rail 1] (V) 0.6
Outputs (Max) (#) 2
Parametric Applications Power Supply for Datacom/Telecom and POL | Paralleling Power Module | Wide and Narrow Input Voltage Range Buck Regulators
Parametric Category Buck Controllers (External FETs)
Phases (Max) 2
Pitch (mm) 0.5
Pkg. Dimensions (mm) 5.0 x 5.0 x 0.90
Qualification Level Standard
Thickness (mm) 0.90
Topology [Rail 1] Buck
VID No VID
Width (mm) 5.0

Description

The ISL8126 integrates two voltage-mode PWM leading-edge modulation control with input feed-forward synchronous buck PWM controllers to control dual independent voltage regulators or a 2-phase single output regulator. It also integrates current sharing control for the power module to operate in parallel, which offers high system flexibility. The ISL8126 integrates an internal linear regulator, which generates IC’s bias voltages for applications with only one single supply rail. The internal oscillator is adjustable from 150kHz to 1. 5MHz, and is able to synchronize to an external clock signal for frequency synchronization and phase paralleling applications. Its PLL circuit can output a phase-shift-programmable clock signal for the system to be expanded to 3-, 4-, 6- and 12- phases with desired interleaving phase shift. The ISL8126’s Fault Spreading feature protects any channel from overloading/stressing due to system faults or phase failure. The undervoltage fault protection features are also designed to prevent a negative transient on the output voltage during falling down. This eliminates the Schottky diode that is used in some systems for protecting the load device from reversed output voltage damage.