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

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

 

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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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

Parametrics

Compare all products in Boost converters (integrated switch) Email Download to Excel
Part number Order 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 Order now 2.3     6     2.8     18.5     2.6     1     900     1500     0.07     Enable
Light Load Efficiency
Power Good    
90     -40 to 85     Converter     Catalog     VSON | 10    
TPS61085 Order now 2.3     6     2.8     18.5     2.6     1     480     1500     0.07     Enable     90     -40 to 85     Converter     Catalog     TSSOP | 8
VSSOP | 8    
TPS61085T Samples not available 2.3     6     2.8     18.5     2.6     1     480     1500     0.07     Enable
Frequency Synchronization    
90     -40 to 105     Converter     Catalog     TSSOP | 8
VSSOP | 8    
TPS61087 Order now 2.5     6     3     18.5     4     1     900     1500     0.075     Enable
Power Good    
90     -40 to 85     Converter     Catalog     VSON | 10
WSON | 10