TPS62813-Q1 Texas instruments

TPS62813-Q1

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TPS62813-Q1

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Описание

The TPS6281x-Q1 is family of pin-to-pin 1-A, 2-A, 3-A, and 4-A synchronous step-down DC/DC converters. All devices offer high efficiency and ease of use. The TPS6281x-Q1 family is based on a peak current mode control topology. The TPS6281x-Q1 is designed for automotive applications such as infotainment and advanced driver assistance systems. Low resistive switches allow up to 4-A continuous output current at high ambient temperature. The switching frequency is externally adjustable from 1.8 MHz to 4 MHz and can also be synchronized to an external clock in the same frequency range. In PWM/PFM mode, the TPS6281x-Q1 automatically enter power save mode at light loads to maintain high efficiency across the whole load range. The TPS6281x-Q1 provide 1% output voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin allows setting the start-up time or forming tracking of the output voltage to an external source. This feature allows external sequencing of different supply rails and limiting the inrush current during start-up.The TPS6281x-Q1 is available in a 3-mm × 2-mm VQFN package with wettable flanks.

AEC-Q100 qualified for automotive applications
- Device temperature grade 1: –40°C to +125°C T_A
Functional Safety-Capable
- Documentation available to aid functional safety system design
Input voltage range: 2.75 V to 6 V
Family of 1 A, 2 A, 3 A and 4 A
Quiescent current 15-µA typical
Output voltage from 0.6 V to 5.5 V
Output voltage accuracy ±1% (PWM operation)
Adjustable soft start
Forced PWM or PWM and PFM operation
Adjustable switching frequency of 1.8 MHz to 4 MHz
Precise ENABLE input allows
- User-defined undervoltage lockout
- Exact sequencing
100% duty cycle mode
Active output discharge
Spread spectrum clocking - optional
Power-good output with window comparator
Package with wettable flanks

Vin (min) (V)	2.7
Vin (max) (V)	6
Vout (min) (V)	0.6
Vout (max) (V)	5.5
Iout (max) (A)	3
Iq (typ) (mA)	0.015
Switching frequency (min) (kHz)	1800
Switching frequency (max) (kHz)	4000
EMI features	Low parasitic Hotrod packaging, Spread Spectrum
Features	Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification, Tracking, UVLO Fixed, Wettable flanks package
Operating temperature range (°C)	-40 to 120, -40 to 125
Rating	Automotive
TI functional safety category	Functional Safety-Capable
Regulated outputs (#)	1
Control mode	current mode
Duty cycle (max) (%)	100
Type	Converter