Startseite Energiemanagement DC/DC-Spannungsversorgungsmodul Stromversorgungsmodule (integrierter Induktor)
NEU

TPSM843521

AKTIV

Synchroner Abwärtswandler, 3,8 V bis 18 V Eingangsspannung, 5 A, 200 kHz bis 2,2 MHz

Produktdetails

Rating Catalog Topology Buck Iout (max) (A) 5 Vin (max) (V) 18 Vin (min) (V) 3.8 Vout (max) (V) 9 Vout (min) (V) 0.6 Features Adjustable soft start, Adjustable switching frequency, Enable, External Sync, Light-load efficiency, Low Quiescent Current, Phase Interleaving, UVLO adjustable Operating temperature range (°C) -40 to 125 Type Module Duty cycle (max) (%) 98 Control mode current mode Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200
Rating Catalog Topology Buck Iout (max) (A) 5 Vin (max) (V) 18 Vin (min) (V) 3.8 Vout (max) (V) 9 Vout (min) (V) 0.6 Features Adjustable soft start, Adjustable switching frequency, Enable, External Sync, Light-load efficiency, Low Quiescent Current, Phase Interleaving, UVLO adjustable Operating temperature range (°C) -40 to 125 Type Module Duty cycle (max) (%) 98 Control mode current mode Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200
QFN-FCMOD (RCJ) 9 14.85 mm² 3.3 x 4.5
  • Configured for a wide range of applications
    • 3.8V to 18V input voltage range
    • 0.6V to 9V output voltage range
    • Up to 5A continuous output current
    • 0.6V ±1% reference voltage (–40°C to 125°C)
    • Low quiescent current of 28uA (typical)
    • 70ns, 114ns minimum switching on, off-time
    • 8us maximum switching on-time
    • 98% maximum duty cycle
  • Ease of use and small design size
    • Peak current control mode with internal compensation
    • 200kHz to 2.2MHz selectable frequency
    • Synchronizable to an external clock (support phase shift): 200kHz to 2.2MHz
    • Selectable PFM / FCCM at light load condition
    • Selectable adjustable soft-start time, power-good indicator function
    • Good EMI performance with frequency spread spectrum and optimized pinout
    • Hiccup overcurrent (OC) limit for both high-side and low-side MOSFETs
    • Non-latched protections for overtemperature protection (OTP), overcurrent protection (OCP), overvoltage protection (OVP), undervoltage protection (UVP), and undervoltage lockout (UVLO)
    • Integrated bootstrap capacitor and inductor to support easy PCB layout
    • Operating junction temperature of –40°C to 125°C
    • 3.3mm × 4.5mm × 2mm QFN package
  • Create a custom design with the TPSM843521 using the WEBENCH Power Designer
  • Configured for a wide range of applications
    • 3.8V to 18V input voltage range
    • 0.6V to 9V output voltage range
    • Up to 5A continuous output current
    • 0.6V ±1% reference voltage (–40°C to 125°C)
    • Low quiescent current of 28uA (typical)
    • 70ns, 114ns minimum switching on, off-time
    • 8us maximum switching on-time
    • 98% maximum duty cycle
  • Ease of use and small design size
    • Peak current control mode with internal compensation
    • 200kHz to 2.2MHz selectable frequency
    • Synchronizable to an external clock (support phase shift): 200kHz to 2.2MHz
    • Selectable PFM / FCCM at light load condition
    • Selectable adjustable soft-start time, power-good indicator function
    • Good EMI performance with frequency spread spectrum and optimized pinout
    • Hiccup overcurrent (OC) limit for both high-side and low-side MOSFETs
    • Non-latched protections for overtemperature protection (OTP), overcurrent protection (OCP), overvoltage protection (OVP), undervoltage protection (UVP), and undervoltage lockout (UVLO)
    • Integrated bootstrap capacitor and inductor to support easy PCB layout
    • Operating junction temperature of –40°C to 125°C
    • 3.3mm × 4.5mm × 2mm QFN package
  • Create a custom design with the TPSM843521 using the WEBENCH Power Designer

The TPSM843521 is a high-efficiency, high-power density, and easy-to-use, synchronous buck power module with high design flexibility. With operating input voltage ranging from 3.8V to 18V, the TPSM843521 is designed for systems powered from 5V, 12V power-bus rails. The device supports up to 5A continuous output current and 98% maximum duty cycle.

TPSM843521 uses fixed frequency peak current control with internal compensation for fast transient response and good line and load regulation. With the optimized internal loop compensation, the device eliminates the need for external compensation over a wide output voltage range and switching frequency.

TPSM843521 allows high design flexibility with wide supported switching frequency of 200kHz – 2.2MHz set by the RT/SYNC pin. The device has the option for pulse frequency modulation (PFM), forced continuous conduction modulation (FCCM) at light load condition, and adjustable soft-start (SS) time / power-good (PG) indicator with different configuration of the MODE pin.

TPSM843521 provides protection functions including thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection. TPSM843521 is available in a 9-pin, 3.3mm × 4.5mm, QFN package, and the pinout is available for single-layer PCB layout. The junction temperature is specified from –40°C to 125°C.

The TPSM843521 is a high-efficiency, high-power density, and easy-to-use, synchronous buck power module with high design flexibility. With operating input voltage ranging from 3.8V to 18V, the TPSM843521 is designed for systems powered from 5V, 12V power-bus rails. The device supports up to 5A continuous output current and 98% maximum duty cycle.

TPSM843521 uses fixed frequency peak current control with internal compensation for fast transient response and good line and load regulation. With the optimized internal loop compensation, the device eliminates the need for external compensation over a wide output voltage range and switching frequency.

TPSM843521 allows high design flexibility with wide supported switching frequency of 200kHz – 2.2MHz set by the RT/SYNC pin. The device has the option for pulse frequency modulation (PFM), forced continuous conduction modulation (FCCM) at light load condition, and adjustable soft-start (SS) time / power-good (PG) indicator with different configuration of the MODE pin.

TPSM843521 provides protection functions including thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection. TPSM843521 is available in a 9-pin, 3.3mm × 4.5mm, QFN package, and the pinout is available for single-layer PCB layout. The junction temperature is specified from –40°C to 125°C.

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Technische Dokumentation

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Typ Titel Datum
* Data sheet TPSM843521 3.8V to 18V, 5A, Synchronous Buck Power Module With User Selectable Mode datasheet PDF | HTML 10 Apr 2025
Certificate TPSM843521EVM EU Declaration of Conformity (DoC) 24 Feb 2025

Design und Entwicklung

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

Evaluierungsplatine

TPSM843521EVM — TPSM843521 Evaluierungsplatine

Das TPSM843521EVM ist eine vollständig montierte und getestete Schaltung zur Evaluierung des Moduls TPSM843521. Das Evaluierungsmodul ist für den Betrieb im Eingangsspannungsbereich von 3,8 V bis 18 V konfiguriert und erzeugt einen geregelten 5,0 V-Ausgang mit bis zu 5 A Laststrom. Die meisten (...)

Benutzerhandbuch: PDF | HTML
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
QFN-FCMOD (RCJ) 9 Ultra Librarian

Bestellen & Qualität

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