TPS61086 18.5V PFM/PWM High Efficiency Step-Up DC-DC Converter with 2.0 A Switch | TI.com

TPS61086 (ACTIVE)

18.5V PFM/PWM High Efficiency Step-Up DC-DC Converter with 2.0 A Switch

18.5V PFM/PWM High Efficiency Step-Up DC-DC Converter with 2.0 A Switch - TPS61086
 

Description

The TPS61086 device is a high-frequency, high-efficiency DC-to-DC converter with an integrated 2.0-A, 0.13-Ω power switch capable of providing an output voltage up to 18.5 V. The implemented boost converter is based on a fixed frequency of 1.2-MHz, pulse-width-modulation (PWM) controller that allows the use of small external inductors and capacitors and provides fast transient response.

At light-load, the device can operate in Power Save Mode with pulse-frequency-modulation (PFM) to improve the efficiency while keeping a low-output voltage ripple. For very noise-sensitive applications, the device can be forced to PWM Mode operation over the entire load range by pulling the MODE pin high. The external compensation allows optimizing the application for specific conditions. A capacitor connected to the soft-start pin minimizes inrush current at start-up.

Features

  • 2.3-V to 6.0-V Input Voltage Range
  • 18.5-V Boost Converter With 2.0-A Switch Current
  • 1.2-MHz Switching Frequency
  • Power Save Mode for Improved Efficiency at Low-
    Output Power or Forced PWM
  • Adjustable Soft-Start
  • Thermal Shutdown
  • Undervoltage Lockout
  • 10-Pin VSON Package

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Parametrics Compare all products in Boost converters (integrated switch)

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Switch Current Limit (Typ) (A)
Regulated Outputs (#)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Features
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Type
Rating
Package Group
TPS61086 TPS61085 TPS61085T TPS61087
2.3     2.3     2.3     2.5    
6     6     6     6    
2.8     2.8     2.8     3    
18.5     18.5     18.5     18.5    
2.6     2.6     2.6     4    
1     1     1     1    
900     480     480     900    
1500     1500     1500     1500    
0.07     0.07     0.07     0.075    
Enable
Light Load Efficiency
Power Good    
Enable     Enable
Frequency Synchronization    
Enable
Power Good    
90     90     90     90    
-40 to 85     -40 to 85     -40 to 105     -40 to 85    
Converter     Converter     Converter     Converter    
Catalog     Catalog     Catalog     Catalog    
VSON | 10     TSSOP | 8
VSSOP | 8    
TSSOP | 8
VSSOP | 8    
VSON | 10
WSON | 10    
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WEBENCH® Designer TPS61086

  Min   Max Range
Vin  V 2.3 to 6.0V
Vout  V 2.8 to 18.5V
Iout  A ≤ 2.6A
Ambient Temp  °C -40 to 125°C


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