Startseite Energiemanagement AC/DC & DC/DC converters (integrated FET)
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AC/DC & DC/DC converters (integrated FET)

LM26003-Q1

AKTIV

-A-Schaltregler mit hocheffizientem Energiesparmodus, 3 

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LMQ66430-Q1 AKTIV Synchroner Abwärtswandler, 36 V, 3 A, mit niedriger EMI und 1,5-µA-Ruhestrom für die Automobilindust Integrated input bypass capacitor and boot cap for lower EMI and smaller footprint, dual-random spread spectrum and lower IQ.

LM26003-Q1

AKTIV
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Produktdetails

Iout (max) (A) 3 Vin (min) (V) 3 Vin (max) (V) 38 Topology Buck Type Converter Switching frequency (min) (kHz) 150 Switching frequency (max) (kHz) 500 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Power good, Pre-Bias Start-Up, Soft Start Adjustable Control mode current mode Vout (min) (V) 1.25 Vout (max) (V) 35 Rating Automotive Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00004
Iout (max) (A) 3 Vin (min) (V) 3 Vin (max) (V) 38 Topology Buck Type Converter Switching frequency (min) (kHz) 150 Switching frequency (max) (kHz) 500 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Power good, Pre-Bias Start-Up, Soft Start Adjustable Control mode current mode Vout (min) (V) 1.25 Vout (max) (V) 35 Rating Automotive Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00004
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • LM26003-Q1 is an Automotive-Grade Product
    That is AEC-Q100 Grade 1 Qualified (–40°C to
    +125°C Operating Junction Temperature)
  • High-Efficiency Sleep Mode
  • 40-µA Typical Iq in Sleep Mode
  • 10.8-µA Typical Iq in Shutdown Mode
  • 3.0-V Minimum Input Voltage
  • 4.0-V to 38-V Continuous Input Range
  • 1.5% Reference Accuracy
  • Cycle-by-Cycle Current Limit
  • Adjustable Frequency (150 kHz to 500 kHz)
  • Synchronizable to an External Clock
  • Power Good Flag
  • Forced PWM Function
  • Adjustable Soft-Start
  • 20-Pin HTSSOP Package
  • Thermal Shut Down
  • LM26003-Q1 is an Automotive-Grade Product
    That is AEC-Q100 Grade 1 Qualified (–40°C to
    +125°C Operating Junction Temperature)
  • High-Efficiency Sleep Mode
  • 40-µA Typical Iq in Sleep Mode
  • 10.8-µA Typical Iq in Shutdown Mode
  • 3.0-V Minimum Input Voltage
  • 4.0-V to 38-V Continuous Input Range
  • 1.5% Reference Accuracy
  • Cycle-by-Cycle Current Limit
  • Adjustable Frequency (150 kHz to 500 kHz)
  • Synchronizable to an External Clock
  • Power Good Flag
  • Forced PWM Function
  • Adjustable Soft-Start
  • 20-Pin HTSSOP Package
  • Thermal Shut Down

The LM26003 is a switching regulator designed for the high-efficiency requirements of applications with standby modes. The device features a low-current sleep mode to maintain efficiency under light-load conditions and current-mode control for accurate regulation over a wide input voltage range. Quiescent current is reduced to 10.8 µA typically in shutdown mode and less than 40 µA in sleep mode. Forced PWM mode is also available to disable sleep mode.

The LM26003 device can deliver up to 3 A of continuous load current with a fixed current limit, through the internal N-channel switch. The part has a wide input voltage range of 4.0 V to 38 V and can operate with input voltages as low as 3 V during line transients.

Operating frequency is adjustable from 150 kHz to 500 kHz with a single resistor and can be synchronized to an external clock.

Other features include Power Good, adjustable soft-start, enable pin, input undervoltage protection, and an internal bootstrap diode for reduced component count.

The LM26003 is a switching regulator designed for the high-efficiency requirements of applications with standby modes. The device features a low-current sleep mode to maintain efficiency under light-load conditions and current-mode control for accurate regulation over a wide input voltage range. Quiescent current is reduced to 10.8 µA typically in shutdown mode and less than 40 µA in sleep mode. Forced PWM mode is also available to disable sleep mode.

The LM26003 device can deliver up to 3 A of continuous load current with a fixed current limit, through the internal N-channel switch. The part has a wide input voltage range of 4.0 V to 38 V and can operate with input voltages as low as 3 V during line transients.

Operating frequency is adjustable from 150 kHz to 500 kHz with a single resistor and can be synchronized to an external clock.

Other features include Power Good, adjustable soft-start, enable pin, input undervoltage protection, and an internal bootstrap diode for reduced component count.
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Technische Dokumentation

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Typ Titel Datum
* Data sheet LM26003-xx 3-A Switching Regulator With High Efficiency Sleep Mode datasheet (Rev. F) PDF | HTML 06 Feb 2015
Technical article Spread Spectrum: Headache tablet or vitamin pill? PDF | HTML 18 Mai 2015
EVM User's guide AN-1884 LM26003 Evaluation Board (Rev. B) 24 Apr 2013

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

LM26003EVAL — Evaluierungsmodul für 3-A-Schaltregler LM26003 mit hocheffizientem Energiesparmodus

The LM26003 evaluation board is designed to demonstrate the capabilities of the LM26003 switching regulator. The LM26003 eval board can be configured to provide an output of 3.3V at up to 3A from the input range of 4V to 38V. The nominal operating frequency is 300kHz and can be synchronized from (...)

Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Simulationsmodell

LM26003 PSpice Average Model

SNVM185.ZIP (57 KB) - PSpice Model
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Simulationsmodell

LM26003 Unencrypted PSpice Average Model

SNVM874.ZIP (1 KB) - PSpice Model
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Referenzdesigns

PMP9476 — 15W Start-Stopp-Stromversorgung für Fahrzeuge

PMP9476 is non-sync buck converter plus a non-sync boost controller accepts an input voltage of 3.5V to 40V, and outputs 5V, capable of providing 3A of current to the load.
Test report: PDF
Schaltplan: PDF
Gehäuse Pins Herunterladen
HTSSOP (PWP) 20 Optionen anzeigen
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Bestellen & Qualität

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  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
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  • Montagestandort

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