TPS61085 18.5V, 2A, 650kHz / 1.2MHz Step-Up DC-DC Converter w/ Forced PWM Mode | TI.com

TPS61085 (ACTIVE)

18.5V, 2A, 650kHz / 1.2MHz Step-Up DC-DC Converter w/ Forced PWM Mode

 

Description

The TPS61085 is a high frequency, high efficiency DC-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 selectable frequency of 650 kHz or 1.2 MHz allows the use of small external inductors and capacitors and provides fast transient response. The external compensation allows optimizing the application for specific conditions. A capacitor connected to the soft-start pin minimizes inrush current at startup.

Features

  • 2.3 V to 6 V Input Voltage Range
  • 18.5-V Boost Converter With 2.0-A Switch Current
  • 650-kHz/1.2-MHz Selectable Switching Frequency
  • Adjustable Soft-Start
  • Thermal Shutdown
  • Undervoltage Lockout
  • 8-Pin VSSOP Package
  • 8-Pin TSSOP Package

View more

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
TPS61085 LM27313 LM2735 TLV61046A TPS61085T TPS61086 TPS61087
2.3     2.7     2.7     1.8     2.3     2.3     2.5    
6     14     5.5     5.5     6     6     6    
2.8     4     3     3.3     2.8     2.8     3    
18.5     28     24     28     18.5     18.5     18.5    
2.6     1.25     2.25     0.9     2.6     2.6     4    
1     1     1     1     1     1     1    
480     1150     520     850     480     900     900    
1500     1900     1600     1250     1500     1500     1500    
0.07     2.1     7     0.11     0.07     0.07     0.075    
Enable     Enable
Light Load Efficiency    
Enable     Enable
Light Load Efficiency
Load Disconnect    
Enable
Frequency Synchronization    
Enable
Light Load Efficiency
Power Good    
Enable
Power Good    
90     88     99     90     90     90     90    
-40 to 85     -40 to 125     -40 to 125     -40 to 125     -40 to 105     -40 to 85     -40 to 85    
Converter     Converter     Converter     Converter     Converter     Converter     Converter    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
TSSOP | 8
VSSOP | 8    
SOT-23 | 5     MSOP-PowerPAD | 8
SOT-23 | 5
WSON | 6    
SOT-23 | 6     TSSOP | 8
VSSOP | 8    
VSON | 10     VSON | 10
WSON | 10    

Design tool

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WEBENCH® Designer TPS61085

  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