TPS62590-Q1 Automotive 2.5V to 6V, 2.25MHz Fixed Frequency 1A Buck Converter in 2x2mm SON Package | TI.com

TPS62590-Q1 (ACTIVE)

Automotive 2.5V to 6V, 2.25MHz Fixed Frequency 1A Buck Converter in 2x2mm SON Package

 

Description

The TPS62590-Q1 device is a high-efficiency synchronous step-down converter, optimized for space constrained applications and very low quiescent current requirements. It provides up to 1000-mA output current from preregulated low voltage rails and consumes 15 µA (typical) in power-save mode.

With an input voltage range of 2.5 V to 6 V and an output voltage accuracy of 2.5%, the device is targeted to power a large variety of automotive applications.

The TPS62590-Q1 family operates at a 2.25-MHz fixed switching frequency and enters a power-save mode at light load currents to maintain a high efficiency over the entire load current range.

The power-save mode is optimized for low output-voltage ripple. For low-noise applications, the device can be forced into fixed-frequency PWM mode by pulling the MODE pin high. In the shutdown mode, the current consumption is reduced to less than 1 µA. The TPS62590-Q1 allows the use of small inductors and capacitors to achieve a small solution size.

The TPS62590-Q1 is available in a 2-mm × 2-mm 6-pin SON package with a thermal pad for improved thermal performance.

Features

  • Qualified for Automotive Applications
  • Output Current up to 1000 mA
  • Input Voltage Range from 2.5 V to 6 V
  • High Efficiency Step Down Converter
  • Output Voltage Accuracy in PWM mode ±2.5%
  • Typical 15-µA Quiescent Current
  • 2.25 MHz Fixed Frequency Operation
  • Power Save Mode at Light Load Currents
  • 100% Duty Cycle for Lowest Dropout

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Parametrics Compare all products in Buck converters (integrated switch)

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Regulated outputs (#)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Features
Control mode
Duty cycle (Max) (%)
Operating temperature range (C)
Rating
Package Group
Type
TPS62590-Q1 TPS54618-Q1 TPS57114-Q1 TPS62065-Q1 TPS62090-Q1 TPS62242-Q1 TPS62260-Q1 TPS62290-Q1 TPS62293-Q1
2.5     2.95     2.95     2.9     2.5     2     2     2.3     2.3    
6     6     6     6     6     6     6     6     6    
0.75     0.8     0.8     0.8     0.8     1.2     0.6     0.6     1.8    
6     4.5     4.5     6     6     1.2     6     6     1.8    
1     6     4     2     3     0.3     0.6     1     1    
1     1     1     1     1     1     1     1     1    
2000     200     200     2600     1400     2250     2250     2250     2250    
2500     2000     2000     3400     2800     2250     2250     2250     2250    
0.015     0.25     0.515     0.018     0.02     0.015     0.015     0.015     0.015    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Synchronous Rectification    
Enable
Frequency Synchronization
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking
UVLO Adjustable    
Enable
Frequency Synchronization
Power Good
Synchronous Rectification
Tracking
UVLO Adjustable    
Enable
Light Load Efficiency
Output Discharge
Spread Spectrum
Synchronous Rectification    
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification
Tracking    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Synchronous Rectification    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Synchronous Rectification    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Synchronous Rectification    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Synchronous Rectification    
Voltage Mode     Current Mode     Current Mode     Voltage Mode     Constant on-time (COT)
DCS-Control    
Voltage Mode     Voltage Mode     Voltage Mode     Voltage Mode    
100     98     100     100     100     100     100     100     100    
-40 to 105     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 115     -40 to 105
-40 to 85    
-40 to 105
-40 to 85    
-40 to 105    
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