Automotive Catalog 1.2A Switch, High Voltage Boost Converter in 2x2mm QFN Package - TPS61170-Q1

TPS61170-Q1 (ACTIVE)

Automotive Catalog 1.2A Switch, High Voltage Boost Converter in 2x2mm QFN Package

Description

The TPS61170-Q1 is a monolithic, high-voltage switching regulator with integrated 1.2-A, 40-V power MOSFET. The device can be configured in several standard switching-regulator topologies, including boost and SEPIC. The device has a wide input-voltage range to support applications with input voltage from multicell batteries or regulated 5-V, 12-V power rails.

The TPS61170-Q1 operates at a 1.2-MHz switching frequency, allowing the use of low-profile inductors and low-value ceramic input and output capacitors. External loop compensation components give the user flexibility to optimize loop compensation and transient response. The device has built-in protection features, such as pulse-by-pulse overcurrent limit, soft start, and thermal shutdown.

The FB pin regulates to a reference voltage of 1.229 V. The reference voltage can be lowered using a 1-wire digital interface (EasyScale™ protocol) through the CTRL pin. Alternatively, a pulse width-modulation (PWM) signal can be applied to the CTRL pin. The duty cycle of the signal reduces the feedback reference voltage proportionally.

The TPS61170-Q1 is available in a 6-pin 2-mm × 2-mm SON package, allowing a compact power-supply solution.

Features

  • Qualified for Automotive Applications
  • 3-V to 18-V Input Voltage Range
  • High Output Voltage: Up to 38 V
  • 1.2-A Integrated Switch
  • 1.2-MHz Fixed Switching Frequency
  • 12 V at 300 mA and 24 V at 150 mA from 5-V
    Input (Typical)
  • Up to 93% Efficiency
  • On the Fly Output Voltage Reprogramming
  • Skip-Switching Cycle for Output Regulation at
    Light Load
  • Built-in Soft Start
  • 6-Pin, 2-mm × 2-mm SON Package

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Parametrics Compare all products in Step-Up (Boost) Converter

 
Regulated Outputs (#)
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Topology
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Duty Cycle (Max) (%)
Undervoltage Lockout
Switch Current Limit (Typ) (A)
Special Features
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
TPS61170-Q1
1    
3    
18    
3    
38    
Boost
SEPIC    
1500    
2.3    
93    
Fixed    
1.2    
Enable
Light Load Efficiency    
Automotive    
-40 to 125    
6SON    
1.18 | 1ku    

Other qualified versions of TPS61170-Q1

Version Part Number Definition
Catalog TPS61170 TI's standard catalog product
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WEBENCH® TPS61170-Q1
    Min   Max   Range  
  Vin V 3.0 to 18.0V  
  Vout V 3.0 to 38.0V  
  Iout A ≤ 1.2A  
  Ambient Temp °C -40 to 150°C  
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