LM5009 150 mA, 100V Step-Down Switching Regulator | TIJ.co.jp

LM5009 (供給中) 150 mA, 100V Step-Down Switching Regulator

 

推奨代替製品

  • LM5019  -  7.5~100V、より広い Vin および同期

概要

The LM5009 step-down switching regulator features all of the functions needed to implement a low-cost, efficient, buck bias regulator. This device is capable of driving a 150-mA load current from a 9.5-V to 95-V input source. The switching frequency can exceed 600 kHz, depending on the input and output voltages. The output voltage can be set from 2.5 V to 85 V. This high-voltage regulator contains an N-channel buck switch and an internal startup regulator. The device is easy to implement and is provided in 8-pin VSSOP and thermally-enhanced, 8-pin WSON packages. The LM5009 is a well-suited alternative to a high-voltage monolithic or discrete linear solution where the power loss becomes unacceptable. The regulator operation is based on a control scheme using an on-time inversely proportional to VIN. This feature allows the operating frequency to remain relatively constant over load and input voltage variations. The control scheme requires no loop compensation, resulting in an ultrafast transient response. An intelligent current limit is implemented with forced off-time that is inversely proportional to VOUT. This scheme ensures short-circuit protection and provides minimum foldback. Other features include thermal shutdown, VCC undervoltage lockout, gate drive undervoltage lockout, and maximum duty cycle limiter.

特長

  • Integrated N-Channel MOSFET
  • 150-mA Output Current Capability
  • Ultra-Fast Transient Response
  • No Loop Compensation Required
  • VIN Feed-Forward Provides Constant Operating Frequency
  • Switching Frequency Can Exceed 600 kHz
  • Highly Efficient Operation
  • 2% Accurate 2.5-V Feedback From
    –40°C to +125°C
  • Internal Startup Regulator
  • Intelligent Current Limit Protection
  • External Shutdown Control
  • Thermal Shutdown
  • 8-Pin VSSOP and Thermally-Enhanced 8-Pin WSON Packages

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WEBENCH® Designer LM5009

  最小   最大 範囲
入力電圧  V 9.5 to 95.0V
出力電圧  V 2.5 to 75V
負荷電流  A ≤ 0.15A
周囲温度  °C -40 to 125°C

機能一覧

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Part number オーダー・オプション 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)
LM5009 ご注文 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)
See datasheet (WSON)    
LM5009A ご注文 6     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)
See datasheet (WSON)    
LM5165-Q1 ご注文 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 ご注文 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     See datasheet (SON)    
TPS54061-Q1 ご注文 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