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LMR14030SQDDARQ1

制造商型号：
LMR14030SQDDARQ1
制造商：
Texas Instruments
产品类型：
Buck Converter
系列：
LMR14030-Q1
封装：
HSOIC-8
描述：
Buck Converter

产品属性

属性数值
TopologyNon-synchronous buck with integrated high-side MOSFET; external diode and inductor; SQDDAR is not the SSQDDAR spread-spectrum option
Input Voltage4 to 40 V
Output VoltageAdjustable, 0.8 to 28 V; duty-cycle/headroom limits apply
Output Current3.5 A continuous, subject to thermal and external component limits
Switching Frequency200 kHz to 2.5 MHz resistor-set; 250 kHz to 2.3 MHz synchronized
EfficiencyApproximately 90% at VIN = 12 V, VOUT = 5 V, IOUT = 1 A, 500 kHz; typical first-page curve
Quiescent Current40 uA typical sleep operating; 1 uA typical shutdown
ProtectionCycle-by-cycle current limit, thermal and output overvoltage protection
Operating Temperature-40 to +125 °C recommended junction operating range
Package DetailsHSOIC PowerPAD, DDA, 8 pins; 4.9 x 3.9 mm nominal body, approximately 6 mm overall width; 1.27 mm pitch

产品描述

LMR14030SQDDARQ1 is a 3.5 A non-synchronous buck converter operating from 4 to 40 V, with output adjustable from 0.8 to 28 V subject to headroom. The SQDDAR ordering option uses the exposed-pad HSOIC package and an external freewheel diode. Internal compensation simplifies the control loop, while external soft start provides control of rail ramp-up.

This option must be distinguished from the SSQDDAR spread-spectrum version. Its adjustable clock permits a choice between switching losses and external component size without implying that spread spectrum is present.

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