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TPSM33620-Q1

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Automotive, 3V to 36V input, 2A synchronous buck module

Product details

Rating Automotive Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck, Synchronous Buck Type Module Iout (max) (A) 2 Vin (min) (V) 3 Vin (max) (V) 36 Vout (min) (V) 1 Vout (max) (V) 7 Switching frequency (min) (kHz) 1900 Switching frequency (max) (kHz) 2500 EMI features Integrated capacitors, Low parasitic Hotrod packaging, Spread Spectrum Features EMI Tested, Enable, Frequency synchronization, Light Load Efficiency, Overcurrent protection, Power good, Spread Spectrum Control mode Peak current mode Duty cycle (max) (%) 98
Rating Automotive Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck, Synchronous Buck Type Module Iout (max) (A) 2 Vin (min) (V) 3 Vin (max) (V) 36 Vout (min) (V) 1 Vout (max) (V) 7 Switching frequency (min) (kHz) 1900 Switching frequency (max) (kHz) 2500 EMI features Integrated capacitors, Low parasitic Hotrod packaging, Spread Spectrum Features EMI Tested, Enable, Frequency synchronization, Light Load Efficiency, Overcurrent protection, Power good, Spread Spectrum Control mode Peak current mode Duty cycle (max) (%) 98
QFN-FCMOD (RDN) 11 15.75 mm² 4.5 x 3.5
  • AEC-Q100-qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Versatile, synchronous, buck DC/DC automotive module:
    • Integrated power MOSFETs, inductor, CBOOT capacitor and controller
    • Wide input voltage range: 3V to 36V
    • Load dump tolerance up to 42V
    • Junction temperature range: –40°C to +150°C
    • 4.5mm × 3.5mm × 2mm QFN-11 overmolded package with wettable flanks
    • Fixed switching frequency of 2.2MHz
  • Ultra-high efficiency across the full load range:
    • Greater than 89% efficiency at 12V VIN, 5V VOUT, IOUT = 2A
    • As low as 1.5µA standby IQ at 13.5VIN
  • Optimized for ultra-low EMI requirements:
    • Dual random spread spectrum - DRSS
    • Flip-chip on lead package - FCOL
    • Pin selectable FPWM mode for constant frequency at light loads with MODE/SYNC pin
    • CISPR 25, class 5 compliant
  • Output voltage and current options:
    • Fixed output variants of 3.3V or 5V VOUT
    • Adjustable output voltage from 1V to 7V
    • 0.6A, 1A, and 2A output current variants
  • Inherent protection features for robust design:
    • Precision enable input and open-drain PGOOD indicator for power-rail sequencing, control, and VIN UVLO
    • Hiccup-mode overcurrent and thermal shutdown protections
  • Create a custom design using the TPSM336xx-Q1 with the WEBENCH Power Designer
  • AEC-Q100-qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Versatile, synchronous, buck DC/DC automotive module:
    • Integrated power MOSFETs, inductor, CBOOT capacitor and controller
    • Wide input voltage range: 3V to 36V
    • Load dump tolerance up to 42V
    • Junction temperature range: –40°C to +150°C
    • 4.5mm × 3.5mm × 2mm QFN-11 overmolded package with wettable flanks
    • Fixed switching frequency of 2.2MHz
  • Ultra-high efficiency across the full load range:
    • Greater than 89% efficiency at 12V VIN, 5V VOUT, IOUT = 2A
    • As low as 1.5µA standby IQ at 13.5VIN
  • Optimized for ultra-low EMI requirements:
    • Dual random spread spectrum - DRSS
    • Flip-chip on lead package - FCOL
    • Pin selectable FPWM mode for constant frequency at light loads with MODE/SYNC pin
    • CISPR 25, class 5 compliant
  • Output voltage and current options:
    • Fixed output variants of 3.3V or 5V VOUT
    • Adjustable output voltage from 1V to 7V
    • 0.6A, 1A, and 2A output current variants
  • Inherent protection features for robust design:
    • Precision enable input and open-drain PGOOD indicator for power-rail sequencing, control, and VIN UVLO
    • Hiccup-mode overcurrent and thermal shutdown protections
  • Create a custom design using the TPSM336xx-Q1 with the WEBENCH Power Designer

The TPSM336xx-Q1 is a 0.6A, 1A, or 2A, 36V input, automotive, synchronous step-down DC/DC power module that combines flip chip on lead (FCOL) packaging, power MOSFETs, automotive-qualified integrated inductor and boot capacitor in a compact and easy-to-use 3.5mm × 4.5mm × 2mm, 11-pin QFN package. The small HotRod™ QFN package technology enhances the thermal performance, making sure of high ambient temperature operation. In addition, in conjunction with spread spectrum, the device provides excellent EMI performance. The TPSM336xx-Q1 is available in two fixed output voltage options supporting 3.3V and 5V. The devices can be configured for 1V up to 7V output with a feedback divider and operated in auto or forced PWM mode. The module only requires four external components for a 3.3V and 5V fixed output design.

The TPSM336xx-Q1 is specifically designed to meet low standby power requirements for always on, automotive applications. Auto mode enables frequency foldback when operating at light loads, allowing a no load current consumption of 1.5µA at 13.5V VIN and high light-load efficiency. A seamless transition between PWM and PFM modes along with low MOSFET ON resistances provide exceptional efficiency across the entire load range.

The TPSM336xx-Q1 uses peak current mode architecture with internal compensation to maintain stable operation with minimal output capacitance. DRSS is used to reduce the external components of the input EMI filter. MODE/SYNC pin can be used to operate the module in user-selectable PFM/FPWM operation.

The TPSM336xx-Q1 is a 0.6A, 1A, or 2A, 36V input, automotive, synchronous step-down DC/DC power module that combines flip chip on lead (FCOL) packaging, power MOSFETs, automotive-qualified integrated inductor and boot capacitor in a compact and easy-to-use 3.5mm × 4.5mm × 2mm, 11-pin QFN package. The small HotRod™ QFN package technology enhances the thermal performance, making sure of high ambient temperature operation. In addition, in conjunction with spread spectrum, the device provides excellent EMI performance. The TPSM336xx-Q1 is available in two fixed output voltage options supporting 3.3V and 5V. The devices can be configured for 1V up to 7V output with a feedback divider and operated in auto or forced PWM mode. The module only requires four external components for a 3.3V and 5V fixed output design.

The TPSM336xx-Q1 is specifically designed to meet low standby power requirements for always on, automotive applications. Auto mode enables frequency foldback when operating at light loads, allowing a no load current consumption of 1.5µA at 13.5V VIN and high light-load efficiency. A seamless transition between PWM and PFM modes along with low MOSFET ON resistances provide exceptional efficiency across the entire load range.

The TPSM336xx-Q1 uses peak current mode architecture with internal compensation to maintain stable operation with minimal output capacitance. DRSS is used to reduce the external components of the input EMI filter. MODE/SYNC pin can be used to operate the module in user-selectable PFM/FPWM operation.

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Technical documentation

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* Data sheet TPSM336xx-Q1 3V to 36V Input, 1V to 7V Output, 0.6A, 1A, and 2A, Automotive, Synchronous Buck Converter Power Module in a HotRod™ QFN Package datasheet PDF | HTML 17 Apr 2025
EVM User's guide TPSM33620QEVM Evaluation Module PDF | HTML 09 Apr 2025
Certificate TPSM33620QEVM EU Declaration of Conformity (DoC) 18 Mar 2025

Design & development

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Evaluation board

TPSM33620QEVM — TPSM33620-Q1 evaluation module

This evaluation module (EVM) contains the typical components for use with the TPSM33620-Q1 to provide a 2A load current from an input voltage of up to 36V. The TPSM33620QEVM features an output voltage of 3.3V at a switching frequency of 2.2MHz. This EVM is populated with the TPSM33620S3QRDNRQ1. (...)
User guide: PDF | HTML
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QFN-FCMOD (RDN) 11 Ultra Librarian

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