TPS40200 宽输入非同步降压 DC/DC 控制器 | 德州仪器 TI.com.cn

TPS40200 (正在供货)

宽输入非同步降压 DC/DC 控制器

宽输入非同步降压 DC/DC 控制器 - TPS40200
数据表
 

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描述

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.

特性

  • 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

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参数 与其它产品相比 降压控制器(外部开关)

 
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 LM25116 LM25117 LM25145 LM3150 TPS40200-EP TPS40200-Q1
4.5     6     4.5     6     6     4.5     4.5    
52     42     42     42     42     52     52    
0.7     1.215     0.8     0.8     0.6     0.7     0.7    
46     36     41     40     40     46     46    
3     20     20     30     12     3     3    
1     1     1     1     1     1     1    
1     1     1     1     1     1     1    
35     50     50     100     200     35     35    
500     1000     750     1000     1000     500     500    
1.5     4.6     4.8     1.8     3.5     1.5     1.5    
Frequency Synchronization     Adjustable Current Limit
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification    
Adjustable Current Limit
Enable
Frequency Synchronization
Light Load Efficiency
Synchronous Rectification
Tracking
UVLO Adjustable    
Adjustable Current Limit
Enable
Frequency Synchronization
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking
UVLO Adjustable    
Adjustable Current Limit
Enable
Frequency Synchronization
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable    
Frequency Synchronization     Frequency Synchronization    
90     98     98     99     96     90     95    
-40 to 85     -40 to 125     -40 to 125     -40 to 125     -40 to 125     -55 to 125     -40 to 125    
Catalog     Catalog     Catalog     Catalog     Catalog     HiRel Enhanced Product     Automotive    
SOIC | 8
SON | 8    
HTSSOP | 20     HTSSOP | 20
WQFN | 24    
VQFN | 20     HTSSOP | 14     SOIC | 8     SOIC | 8    
Controller     Controller     Controller     Controller     Controller     Controller     Controller    
Voltage Mode     Current Mode     Current Mode     Voltage Mode     COT with emulated ripple     Voltage Mode     Voltage Mode