TPS54061 4.7V to 60V Input, 200mA Synchronous Step-Down Converter with Low IQ | TI.com

TPS54061 (ACTIVE) 4.7V to 60V Input, 200mA Synchronous Step-Down Converter with Low IQ

 

Description

The TPS54061 device is a 60-V, 200-mA, synchronous step-down DC-DC converter with integrated high-side and low-side MOSFETs. Current mode control provides simple external compensation and flexible component selection. The non-switching supply current is 90 µA. Using the enable pin, shutdown supply current is reduced to 1.4 µA.

To increase light load efficiency the low-side MOSFET emulates a diode when the inductor current reaches zero.

Under voltage lockout is internally set at 4.5 V, but can be increased using two resistors on the enable pin. The output voltage startup ramp is controlled by the internal slow-start time.

The adjustable switching frequency range allows efficiency and external component size to be optimized. Frequency foldback and thermal shutdown protects the part during an overload condition.

The TPS54061 enables small designs by integrating the MOSFETs, boot recharge diode, and minimizing the IC footprint with a small 3.00 mm × 3.00 mm thermally enhanced VSON package.

The TPS54061 is supported in the WEBENCH™ Designer at www.ti.com.

Features

  • Integrated High-Side and Low-Side MOSFET
  • Diode Emulation for Improved Light Load
    Efficiency
  • Peak Current Mode Control
  • 90-µA Operating Quiescent Current
  • 1.4-µA Shutdown Supply Current
  • 50-kHz to 1100-kHz Adjustable Switching
    Frequency
  • Synchronizes to External Clock
  • Internal Slow-Start
  • 0.8 V ±1% Voltage Reference
  • Stable With Ceramic Output Capacitors or Low-
    Cost Aluminum Electrolytic
  • Cycle-by-Cycle Current Limit, Thermal, OVP and
    Frequency Foldback Protection
  • VSON-8 Package, 3 mm × 3 mm With Thermal
    Pad
  • –40°C to 150°C Operating Junction Temperature

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WEBENCH® Designer TPS54061

  Min   Max Range
Vin  V 4.7 to 60.0V
Vout  V 0.8 to 58V
Iout  A ≤ 0.2A
Ambient Temp  °C -40 to 150°C

Parametrics

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Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Control mode Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Type Package size: mm2:W x L (PKG)
TPS54061 Order now 4.7     60     0.8     58     0.2     1     50     1100     0.09     Enable
Frequency Synchronization
Light Load Efficiency
Over Current Protection
Synchronous Rectification
UVLO Adjustable    
Current Mode     98     -40 to 150     Catalog     SON | 8     Converter     8SON: 9 mm2: 3 x 3 (SON | 8)    
LM5009 Order now 9.5     95     2.5     85     0.15     1     50     600     0.485     Enable
Over Current Protection    
Constant on-time (COT)     99     -40 to 125     Catalog     VSSOP | 8
WSON | 8    
Converter     8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)
8WSON: 16 mm2: 4 x 4 (WSON | 8)    
LM5165-Q1 Order now 3     65     1.23     65     0.15     1     50     600     0.01     Adjustable Current Limit
Enable
Light Load Efficiency
Over Current Protection
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable    
Constant on-time (COT)     100     -40 to 150     Automotive     VSON | 10
VSSOP | 10    
Converter     10VSON: 9 mm2: 3 x 3 (VSON | 10)
10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)    
TPS54061-Q1 Order now 4.7     60     0.8     58     0.2     1     50     1100     0.09     Enable
Frequency Synchronization
Light Load Efficiency
Over Current Protection
Synchronous Rectification
UVLO Adjustable    
Current Mode     98     -40 to 150     Automotive     SON | 8     Converter     8SON: 9 mm2: 3 x 3 (SON | 8)    
TPS54062 Order now 4.7     60     0.8     58     0.05     1     100     400     0.089     Enable
Frequency Synchronization
Light Load Efficiency
Over Current Protection
Synchronous Rectification
UVLO Adjustable    
Current Mode     98     -40 to 125     Catalog     SON | 8
VSSOP | 8