宽输入非同步降压 DC/DC 控制器 - TPS40200

TPS40200 (正在供货)

宽输入非同步降压 DC/DC 控制器

 

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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
Control Mode
TPS40200 LM25116 LM25117 LM25145 LM3150 TPS40170 TPS40200-EP TPS40200-Q1
4.5    6    4.5    6    6    4.5    4.5    4.5   
52    42    42    42    42    60    52    52   
0.7    1.215    0.8    0.8    0.6    0.6    0.7    0.7   
46    36    41    40    40    57    46    46   
3    20    20    30    12    20    3    3   
1    1    1    1    1    1    1    1   
1    1    1    1    1    1    1    1   
35    50    50    100    200    100    35    35   
500    1000    750    1000    1000    600    500    500   
1.5    4.6    4.8    1.8    3.5    4.5    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   
Enable
Frequency Synchronization
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking   
Frequency Synchronization    Frequency Synchronization   
90    98    98    99    96    95    90    95   
-40 to 85    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -55 to 125    -40 to 125   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    HiRel Enhanced Product    Automotive   
SOIC
SON   
HTSSOP    HTSSOP
WQFN   
VQFN    HTSSOP    VQFN    SOIC    SOIC   
Voltage Mode    Current Mode    Current Mode    Voltage Mode    COT with emulated ripple    Voltage Mode    Voltage Mode     

其它合格版本 TPS40200

版本 器件型号 定义
增强型产品 TPS40200-EP 支持国防、航天和医疗应用
汽车电子 TPS40200-Q1 Q100 适用于追求零缺陷的高可靠性汽车电子应用的器件
高温 TPS40200-HT 用于严苛环境下的高温产品