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Wide VIN 1A Synchronous Buck Regulator

Package Information

CAD Model: View CAD Model
Pkg. Type: DFN
Pkg. Code: LFU
Lead Count (#): 12
Pkg. Dimensions (mm): 3.99 x 3.00 x 0.90
Pitch (mm): 0.5

Environmental & Export Classifications

Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
ECCN (US) EAR99
HTS (US) 8542.39.0090
RoHS (ISL85410FRZ-T) Download

Product Attributes

Lead Count (#) 12
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 (°C) -40 to +125°C
Country of Assembly MALAYSIA
Country of Wafer Fabrication TAIWAN
Control Type Current Mode
IQ [Rail 1] (µA) 80
Input Voltage (Max) (V) 40
Input Voltage (Max) [Rail 1] (V) 40 - 40
Input Voltage (Min) (V) 3
Input Voltage (Min) [Rail 1] (V) 3
Length (mm) 4
Longevity 2033 Dec
MOQ 6000
Output Current (Max) [Rail 1] (A) 1
Output Voltage (Max) (V) 34
Output Voltage (Max) [Rail 1] (V) 34
Output Voltage (Min) (V) 0.6
Output Voltage (Min) [Rail 1] (V) 0.6
Outputs (#) 1
POR Yes
Parametric Category Buck Regulators (Integrated FETs)
Peak Efficiency (%) 94
Pitch (mm) 0.5
Pkg. Dimensions (mm) 4.0 x 3.0 x 0.90
Pkg. Type DFN
Price (USD) $1.64373
Qualification Level Standard
Quiescent Current 80 µA
SYNCH Capability Yes
Switching Frequency (KHz) 2 - 2
Switching Frequency Range (Typical) (kHz) 300 - 2000
Thickness (mm) 0.9
Topology [Rail 1] Buck
Width (mm) 3

Description

The ISL85410 is a 1A synchronous buck regulator with an input range of 3V to 40V. It provides an easy-to-use, high efficiency low BOM count solution for a variety of applications. The ISL85410 integrates both high-side and low-side NMOS FETs and features a PFM mode for improved efficiency at light loads. This feature can be disabled if a forced PWM mode is needed. The ISL85410 switches at a default frequency of 500kHz; however, it can also be programmed using an external resistor from 300kHz to 2MHz. The ISL85410 has the ability to use internal or external compensation. By integrating both NMOS devices and providing internal configuration options, minimal external components are required, which reduces BOM count and complexity of design. With a wide VIN range and reduced BOM, the ISL85410 provides an easy to implement design solution for a variety of applications while giving superior performance. The ISL85410 provides a very robust design for high-voltage industrial applications and an efficient solution for battery powered applications. The ISL85410 is available in a small Pb-free 4mmx3mm DFN plastic package with a full-range industrial temperature of -40°C to +125°C.