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

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

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Parametrics Compare all products in Boost Converter (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)
Special Features
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Rating
Package Group
TPS61085 TPS61085T TPS61086 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   
480    480    900    900   
1500    1500    1500    1500   
0.07    0.07    0.07    0.075   
Frequency Synchronization    Enable
Frequency Synchronization   
Enable
Light Load Efficiency
Power Good   
Enable
Frequency Synchronization
Power Good   
90    90    90    90   
-40 to 85    -40 to 105    -40 to 85    -40 to 85   
Catalog    Catalog    Catalog    Catalog   
TSSOP
VSSOP   
TSSOP
VSSOP   
VSON    VSON
WSON   

Other qualified versions of TPS61085

Version Part Number Definition
Automotive TPS61085-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects
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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


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