TPS40200 Wide Input Non-Synchronous Buck DC/DC Controller | TI.com

TPS40200 (ACTIVE) Wide Input Non-Synchronous Buck DC/DC Controller

 

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Description

The TPS40200 is a flexible, non-synchronous controller with a built-in 200-mA driver for P-channel FETs. The circuit operates with inputs up to 52 V with a power-saving feature that turns off driver current once the external FET has been fully turned on. This feature extends the flexibility of the device, allowing it to operate with an input voltage up to 52 V without dissipating excessive power. The circuit operates with voltage-mode feedback and has feed-forward input voltage compensation that responds instantly to input voltage change. The integral 700-mV reference is trimmed to 2%, providing the means to accurately control low voltages. The TPS40200 is available in an 8-pin SOIC and an 8-pin VSON package and supports many of the features of more complex controllers. Clock frequency, soft-start, and overcurrent limits are each easily programmed by a single, external component. The part has undervoltage lockout, and can be easily synchronized to other controllers or a system clock to satisfy sequencing and/or noise-reduction requirements.

Features

  • Input Voltage Range 4.5 V to 52 V
  • Output Voltage (700 mV to 90% VIN)
  • 200-mA Internal P-channel FET Driver
  • Voltage Feed-Forward Compensation
  • Undervoltage Lockout
  • Programmable Fixed-Frequency (between 35 kHz
    and 500 kHz) Operation
  • Programmable Short-Circuit Protection
  • Hiccup Overcurrent Fault Recovery
  • Programmable Closed-Loop Soft-Start
  • 700 mV 1% Reference Voltage
  • External Synchronization
  • Small 8-Pin SOIC (D) and VSON (DRB) Packages

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 (#) Number of Phases Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Type Control mode
TPS40200 Order now 4.5     52     0.7     46     3     1     1     35     500     1.5     Frequency Synchronization     90     -40 to 85     Catalog     SOIC | 8
SON | 8    
Controller     Voltage Mode    
LM25116 Order now 6     42     1.215     36     20     1     1     50     1000     4.6     Adjustable Current Limit
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification    
98     -40 to 125     Catalog     HTSSOP | 20     Controller     Current Mode    
LM25117 Order now 4.5     42     0.8     41     20     1     1     50     750     4.8     Adjustable Current Limit
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification
Tracking
UVLO Adjustable    
98     -40 to 125     Catalog     HTSSOP | 20
WQFN | 24    
Controller     Current Mode    
LM25145 Order now 6     42     0.8     40     30     1     1     100     1000     1.8     Adjustable Current Limit
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking
UVLO Adjustable    
99     -40 to 125     Catalog     VQFN | 20     Controller     Voltage Mode    
LM3150 Order now 6     42     0.6     40     12     1     1     200     1000     3.5     Adjustable Current Limit
Enable
Frequency Synchronization
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable    
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