STMicroelectronics Inductor Switch Boost Controller, 37 V Output, 20 mA PWM

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€ 3.672,00

(excl. BTW)

€ 4.443,00

(incl. BTW)

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  • Verzending vanaf 12 augustus 2026
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RS-stocknr.:
188-9216
Fabrikantnummer:
STLD40DPUR
Fabrikant:
STMicroelectronics
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STMicroelectronics

Output Voltage

37 V

Product Type

Display Driver

Input Voltage

3.0 to 5.5 V

Mount Type

Surface Mount

Sub Type

Inductor Switch Boost Controller

Dimming Operation

PWM

Input Voltage Type

DC

Terminal Type

QFN8

Driver Current

20 mA

LED Voltage

37 V

Series

STLD40D

Standards/Approvals

RoHS

Number of Outputs

1

Primary Type

Boost Converter

STLD40D is a boost converter that operates from 3.0 V to 5.5 V. It can provide an output voltage as high as 37 V and can drive up to 10 white LEDs in series. The converter is a PFM (pulse frequency modulation) inductor switch that can work in discontinuous (DCM) mode operation. A minimum OFF time of the embedded boost switch TSWis fixed internally and allows limiting the switching frequency. The output current capability is 20 mA with an output voltage of 37 V. The regulation is done by sensing the LED current through the resistor RLED. The device can be turned ON/OFF through the logic enable signal pin EN. By applying a low frequency PWM signal the LEDs can be dimmed. The maximum Peak inductor current can be programmed by connected a resistor RSETto the pin RSET.

Inductor switches boost controller

PFM mode control

High efficiency over wide range of input voltage from 3.0 V to 5.5 V

Over voltage protection with automatic restart

Adjustable Peak current limit

Enable pin with possibility of PWM dimming control

Low shutdown current < 1 μA

Small external component

Good load and line regulation

QFN8 3 x 3 mm

Applications

White LED supply for LCD backlight

Mobile phone

PDA and organizers

Any handsets powered form 3.0 V to 5.5 V

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