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+5V or +12V Single-Phase Synchronous Buck Converter PWM Controller with Integrated MOSFET Gate Drivers

Package Information

CAD Model:View CAD Model
Pkg. Type:SOICN
Pkg. Code:MOP
Lead Count (#):8
Pkg. Dimensions (mm):4.9 x 3.9 x 0.00
Pitch (mm):1.3

Environmental & Export Classifications

Moisture Sensitivity Level (MSL)3
Pb (Lead) FreeYes
ECCN (US)EAR99
HTS (US)8542.39.0090
RoHS (ISL8105AIBZ-T)Download

Product Attributes

Lead Count (#)8
Carrier TypeReel
Moisture Sensitivity Level (MSL)3
Pitch (mm)1.3
Pkg. Dimensions (mm)4.9 x 3.9 x 0.00
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)5 - 12
IS (Typical)3.2
Input Voltage (Max) (V)12
Input Voltage (Max) [Rail 1] (V)12 - 12
Input Voltage (Min) (V)1
Input Voltage (Min) [Rail 1] (V)1
Length (mm)4.9
MOQ2500
Output Current (Max) [Rail 1] (A)30
Output Voltage (Max) (V)5
Output Voltage (Max) [Rail 1] (V)12
Output Voltage (Min) (V)0.6
Output Voltage (Min) [Rail 1] (V)0.6
Outputs (#)1
Parametric CategoryBuck Controllers (External FETs)
Pkg. TypeSOICN
Qualification LevelStandard
Switching Frequency Range (Typical) (kHz)600 - 600
Topology [Rail 1]Buck
VBIAS (Max) (V)14.4
VBIAS (Min) (V)4.9
Width (mm)3.9

Description

The ISL8105, ISL8105A is a simple single-phase PWM controller for a synchronous buck converter. It operates from +5V or +12V bias supply voltage. With integrated linear regulator, boot diode, and N-Channel MOSFET gate drivers, the ISL8105, ISL8105A reduces external component count and board space requirements. These make the IC suitable for a wide range of applications. Utilizing voltage-mode control, the output voltage can be precisely regulated to as low as 0. 6V. The 0. 6V internal reference features a maximum tolerance of ±1. 0% over the commercial temperature range, and ±1. 5% over the industrial temperature range. Two fixed oscillator frequency versions are available; 300kHz (ISL8105 for high efficiency applications) and 600kHz (ISL8105A for fast transient applications). The ISL8105, ISL8105A features the capability of safe start-up with pre-biased load. It also provides overcurrent protection by monitoring the ON-resistance of the bottom-side MOSFET to inhibit PWM operation appropriately. During start-up interval, the resistor connected to BGATE/BSOC pin is employed to program overcurrent protection condition. This approach simplifies the implementation and does not deteriorate converter efficiency.