TPS55340 Integrated, 5-A 40-V Wide Input Range Boost/SEPIC/Flyback DC-DC Regulator | TI.com

TPS55340 (ACTIVE)

Integrated, 5-A 40-V Wide Input Range Boost/SEPIC/Flyback DC-DC Regulator

 

Description

The TPS55340 is a monolithic, nonsynchronous, switching regulator with integrated 5-A, 40-V power switch. The device can be configured in several standard switching-regulator topologies, including boost, SEPIC, and isolated flyback. The device has a wide input voltage range to support applications with input voltage from multicell batteries or regulated
3.3-V, 5-V, 12-V, and 24-V power rails.

The TPS55340 regulates the output voltage with current mode PWM (pulse width modulation) control, and has an internal oscillator. The switching frequency of PWM is set by either an external resistor or by synchronizing to an external clock signal. The user can program the switching frequency from
100 kHz to 1.2 MHz.

The device features a programmable soft-start function to limit inrush current during start-up and has other built-in protection features including cycle-by-cycle overcurrent limit and thermal shutdown.

The TPS55340 is available in a small 3-mm × 3-mm 16-pin QFN as well as 14-pin HTSSOP packages with PowerPAD for enhanced thermal performance.

The 5-A, 40-V TPS55340 boost converter in the HTSSOP-14 package is pin-to-pin compatible with the 3-A, 40-V TPS61175, and it extends the maximum input voltage from 18 V to 32 V.

Features

  • Internal 5-A, 40-V Low-Side MOSFET Switch
  • 2.9-V to 32-V Input Voltage Range
  • ±0.7% Reference Voltage
  • 0.5-mA Operating Quiescent Current
  • 2.7-µA Shutdown Supply Current
  • Fixed Frequency Current Mode PWM Control
  • Frequency Adjustable From 100 kHz to 1.2 MHz
  • Synchronization Capability to External Clock
  • Adjustable Soft-Start Time
  • Pulse Skipping for Higher Efficiency at Light Loads
  • Cycle-by-Cycle Current Limit, Thermal Shutdown, and UVLO Protection
  • QFN-16 (3-mm × 3-mm) and HTSSOP-14 Packages With PowerPAD™
  • Wide –40°C to 150°C Operating TJ Range
  • Create a Custom Design Using the TPS55340 with the WEBENCH Power Designer

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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
TPS55340 LM2585 LM2586 LM2587 LM2621 LM2623 LM2731 LM27313 LM2733 LM2735 LM2735-Q1 LM5000 LM5001 TLV61046A TPS55330 TPS55332-Q1 TPS55340-Q1 TPS61040 TPS61087 TPS61088 TPS61089 TPS61170 TPS61178
2.9     4     4     4     1.2     0.8     2.7     2.7     2.7     2.7     2.7     3.1     3.1     1.8     2.9     1.5     2.9     1.8     2.5     2.7     2.7     3     2.7    
32     40     40     40     14     14     14     14     14     5.5     5.5     40     75     5.5     16     60     38     6     6     12     12     18     20    
3     1.23     1.23     1.23     1.24     1.24     1.23     4     3     3     3     1.259     1.26     3.3     2.9     2.5     3     1.8     3     4.5     4.5     3     4.5    
38     60     60     60     14     14     22     28     40     24     24     75     75     28     22     50     38     28     18.5     12.6     12.6     38     20    
6.6     4     4     6.5     2.85     2.85     1.5     1.25     1.5     2.25     2.25     2     1     0.9     6.6     5.7     6.6     0.4     4     11.9     11.4     1.2     8    
1     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1