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.

Special note

See Also: 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

View more

Parametrics Compare all products in Step-Up (Boost) Converter

 
Regulated Outputs (#)
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Topology
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Duty Cycle (Max) (%)
Undervoltage Lockout
Switch Current Limit (Typ) (A)
Special Features
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
TPS55340 TPS55330 TPS55332-Q1 TPS55340-Q1 TPS61175
1     1     1     1     1    
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    
Boost
Flyback
SEPIC    
Boost     Boost     Boost
Flyback
SEPIC    
Boost
Flyback
SEPIC    
1200     1200     2200     2500     2640    
0.5     0.5     4.2     0.5     3    
90     96     70     90     93    
    Adjustable       Fixed    
6.6     6.6     5.7     6.6     3.8    
Enable
Frequency Synchronization
Light Load Efficiency    
Enable
Frequency Synchronization
Light Load Efficiency    
Enable
Power Good
Frequency Synchronization
Adjustable UVLO    
Enable
Frequency Synchronization
Light Load Efficiency    
Enable
Frequency Synchronization
Light Load Efficiency    
Catalog     Catalog     Automotive     Automotive     Catalog    
-40 to 150     -40 to 150     -40 to 125     -40 to 125     -40 to 85    
14HTSSOP
16WQFN    
16WQFN     20HTSSOP     16WQFN     14HTSSOP    
1.85 | 1ku     1.75 | 1ku     2.46 | 1ku     2.41 | 1ku     1.40 | 1ku    

Other qualified versions of TPS55340

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