LMR54406

Name: LMR54406
Brand: TI
SKU: LMR54406
Price: 0.31 USD

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SIMPLE SWITCHER®-Leistungswandler mit 4 V bis 36 V, 0,6 A, synchroner Abwärtswandler mit 80-μA-IQ

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Datenblatt

document-pdfAcrobat LMR544xx SIMPLE SWITCHER Power Converter 4V to 45V, 0.6A/1A Buck Converter in a SOT-23 Package datasheet (Rev. D) (Englisch) PDF | HTML

LMR54406

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Datenblatt

Jetzt bestellen

Produktdetails

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

0.6

Vin (min) (V)

4

Vin (max) (V)

36

Switching frequency (min) (kHz)

935

Switching frequency (max) (kHz)

1265

Features

Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Soft Start Fixed, Synchronous Rectification, UVLO Fixed

Control mode

current mode

Vout (min) (V)

1

Vout (max) (V)

28

Iq (typ) (µA)

80

Duty cycle (max) (%)

98

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Buck

Type

Converter

Iout (max) (A)

0.6

Vin (min) (V)

4

Vin (max) (V)

36

Switching frequency (min) (kHz)

935

Switching frequency (max) (kHz)

1265

Features

Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Soft Start Fixed, Synchronous Rectification, UVLO Fixed

Control mode

current mode

Vout (min) (V)

1

Vout (max) (V)

28

Iq (typ) (µA)

80

Duty cycle (max) (%)

98

SOT-23 (DBV)

6

8.12 mm² 2.9 x 2.8

Functional Safety-Capable
- Documentation available to aid functional safety system design
Configured for rugged industrial applications
- 4V to 36V input voltage range
- Withstands up to 50V short VIN transient
- 0.6A/1A continuous output current
- 60ns minimum switching on time
- 1.1MHz fixed switching frequency
- –40°C to 150°C junction temperature range
- 98% maximum duty cycle
- Monotonic start-up with prebiased output
- Short-circuit protection with hiccup mode
- Precision enable
- ±1% tolerance voltage reference
Small design size and ease of use
- Integrated synchronous rectification
- Internal compensation for ease of use
- SOT-23 package
Pin-to-pin compatible with the LMR14010A, LMR50410, and TPS560430
Various options in pin-to-pin compatible package
- PFM and forced PWM (FPWM) options

Functional Safety-Capable
- Documentation available to aid functional safety system design
Configured for rugged industrial applications
- 4V to 36V input voltage range
- Withstands up to 50V short VIN transient
- 0.6A/1A continuous output current
- 60ns minimum switching on time
- 1.1MHz fixed switching frequency
- –40°C to 150°C junction temperature range
- 98% maximum duty cycle
- Monotonic start-up with prebiased output
- Short-circuit protection with hiccup mode
- Precision enable
- ±1% tolerance voltage reference
Small design size and ease of use
- Integrated synchronous rectification
- Internal compensation for ease of use
- SOT-23 package
Pin-to-pin compatible with the LMR14010A, LMR50410, and TPS560430
Various options in pin-to-pin compatible package
- PFM and forced PWM (FPWM) options

The LMR544xx is a wide-VIN, easy-to-use synchronous buck converter capable of driving up to 1A and 0.6A load current. With a wide input range of 4V to 36V, the device is designed for a wide range of industrial applications for power conditioning from an unregulated source.

The LMR544xx operates at 1.1MHz switching frequency to support use of relatively small inductors for an optimized design size. The devices have a PFM version to realize high efficiency at light load and a FPWM version to achieve constant frequency and small output voltage ripple over the full load range. Soft-start and compensation circuits are implemented internally, which allow the device to be used with minimal external components.

The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation.

The LMR544xx is a wide-VIN, easy-to-use synchronous buck converter capable of driving up to 1A and 0.6A load current. With a wide input range of 4V to 36V, the device is designed for a wide range of industrial applications for power conditioning from an unregulated source.

The LMR544xx operates at 1.1MHz switching frequency to support use of relatively small inductors for an optimized design size. The devices have a PFM version to realize high efficiency at light load and a FPWM version to achieve constant frequency and small output voltage ripple over the full load range. Soft-start and compensation circuits are implemented internally, which allow the device to be used with minimal external components.

The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation.

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Technische Dokumentation

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Alle anzeigen 2

	Typ	Titel		Datum
*	Data sheet	LMR544xx SIMPLE SWITCHER Power Converter 4V to 45V, 0.6A/1A Buck Converter in a SOT-23 Package datasheet (Rev. D)	PDF \| HTML	10 Apr 2024
	Functional safety information	LMR544xx Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA	PDF \| HTML	15 Okt 2021

Design und Entwicklung

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