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

TPS55340 (ACTIVE)

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

 

Recommended alternative parts

  • TPS61175  -  For applications requiring smaller Vin range and/or lower current limits.

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

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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
Approx. Price (US$)
TPS55340 TPS55330 TPS55332-Q1 TPS55340-Q1 TPS61175
2.9    2.9    1.5    2.9    2.9   
32    16    60    38    18   
3    2.9    2.5    3    2.9   
38    22    50    38    38   
6.6    6.6    5.7    6.6    3.8   
1    1    1    1    1   
100    100    80    100    160   
1200    1200    2200    2500    2640   
0.5    0.5    4.2    0.5    3   
Enable
Frequency Synchronization
Light Load Efficiency   
Enable
Frequency Synchronization
Light Load Efficiency   
Enable
Frequency Synchronization
Power Good
UVLO Adjustable   
Enable
Frequency Synchronization
Light Load Efficiency   
Enable
Frequency Synchronization
Light Load Efficiency   
90    96    70    90    93   
-40 to 150    -40 to 150    -40 to 125    -40 to 125    -40 to 85   
Catalog    Catalog    Automotive    Automotive    Catalog   
HTSSOP
WQFN   
WQFN    HTSSOP    WQFN    HTSSOP   
1.85 | 1ku    1.75 | 1ku    2.46 | 1ku    2.41 | 1ku    1.30 | 1ku   

Other qualified versions of TPS55340

Version Part Number Definition
Automotive TPS55340-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects
Enhanced Product TPS55340-EP Supports Defense, Aerospace and Medical Applications
New! Interactive Design
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WEBENCH® Designer TPS55340

  Min   Max Range
Vin  V 2.7 to 32.0V
Vout  V 2.7 to 38.0V
Iout  A ≤ 5A
Ambient Temp  °C -40 to 150°C


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