1 Features

• AEC-Q100-qualified for automotive applications:

– Temperature grade 1: –40°C to +125°C, TA

• Functional Safety-Capable

– Documentation available to aid functional safety

system design

• Synchronous, buck DC/DC automotive module:

– Integrated power MOSFETs, controller, AECQ200

qualified inductor and CBOOT capacitor

– Junction temperature range: –40°C to +150°C,

including integrated inductor and CBOOT

– Fixed switching frequency of 2.2MHz

– 0.6A, 1A, and 2A continuous output current

• Ultra-high efficiency across the full load range:

– Peak efficiency of 93.2% at 12V VIN, 5V VOUT,

and 90% at 24V VIN, 5V VOUT

– Ultra-low 1.2μA non-switching IQ at 13.5VIN and

as low as 300nA shutdown current

• Designed for ultra-low EMI requirements:

– Dual random spread spectrum - DRSS

– Integrated CBOOT and HotRod™ package

– Pin selectable FPWM and AUTO modes

– CISPR 25 Class 5 compliant

• Output voltage options:

– Fixed output variants: 3.3V or 5V VOUT

– Adjustable output voltage: 1V to 7V

• Create a custom design using the TPSM336xx-Q1

with the WEBENCH® Power Designer

2 Applications

• Power steering

• Onboard charger

• Automotive lighting

• Automotive camera

3 Description

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 packaging,

integrated power MOSFETs, AEC-Q100 qualified

inductor and boot capacitor in a compact and easyto-

use package. The small HotRod QFN package

enhances the thermal performance, making sure

of high ambient temperature operation. The spread

spectrum helps achieve excellent EMI performance.

The device 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

through MODE/SYNC pin. The device only requires

four external components for a 3.3V and 5V fixed

output design which simplifies PCB layout and design.

The device is designed to meet low standby power

requirements for always-on, automotive applications.

Auto mode enables frequency foldback when

operating at light loads allowing high light-load

efficiency. DRSS is used to reduce the external

components of the input EMI filter.