TPS61085A-Q1 650-kHz and 1.2-MHz, 18.5-V step-up DC-DC converter | TI.com

TPS61085A-Q1 (ACTIVE) 650-kHz and 1.2-MHz, 18.5-V step-up DC-DC converter

 

Description

The TPS61085A-Q1 device is a high-frequency, high-efficiency, DC/DC boost converter with an integrated 2-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 regulator for application conditions. A capacitor connected to the specific soft-start pin minimizes inrush current at start-up.

Features

  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 2: –40°C to +105°C, TA
  • 2.3-V to 6-V input voltage range
  • 18.5-V boost converter with 2-A switch current
  • 650-kHz or 1.2-MHz selectable switching frequency
  • Adjustable soft start
  • Thermal shutdown
  • Undervoltage lockout
  • 8-pin VSSOP package

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Parametrics

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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
TPS61085A-Q1 Order now 2.3     6     2.8     18.5     2.6     1     480     1500     0.07     Enable
Light Load Efficiency
UVLO Fixed    
89     -40 to 125     Converter     Automotive     VSSOP | 8    
LM2623-Q1 Order now 1     14     1.24     14     2.85     1     300     2000     0.11     Enable     90     -40 to 125     Converter     Automotive     WSON | 14    
LM2735-Q1 Order now 2.7     5.5     3     24     2.25     1     520     1600     7     Enable     99     -40 to 125     Converter     Automotive     SOT-23 | 5
WSON | 6    
TPS61087-Q1 Order now 2.5     6     3     18.5     4     1     900     1500     0.075     Enable
Power Good    
90     -40 to 125     Converter     Automotive     VSON | 10    
TPS61088-Q1 Order now 2.7     12     4.5     12.6     11.4     1     200     2200     0.11     Adjustable Current Limit
Enable
Light Load Efficiency
Synchronous Rectification    
90     -40 to 125     Converter     Automotive     VQFN | 20    
TPS61093-Q1 Order now 1.6     6     1.7     17     1.1     1     1200     1200     0.9     Enable
Output Discharge    
93     -40 to 125     Converter     Automotive