LM5010 8-75V Wide Vin, 1A Constant On-Time Non-Synchronous Buck Regulator | TI.com

LM5010 (ACTIVE)

8-75V Wide Vin, 1A Constant On-Time Non-Synchronous Buck Regulator

 

Description

The LM5010 step-down switching regulator features all the functions needed to implement a low-cost, efficient, buck bias regulator capable of supplying in excess of 1-A load current. This high-voltage regulator contains an N-Channel Buck Switch, and is available in thermally enhanced 10-pin WSON and 14-pin HTSSOP packages. The hysteretic regulation scheme requires no loop compensation, resulting in fast load transient response, and simplifies circuit implementation. The operating frequency remains constant with line and load variations due to the inverse relationship between the input voltage and the ON-time. The valley current limit detection is set at 1.25 A. Additional features include: VCC undervoltage lockout, thermal shutdown, gate drive undervoltage lockout, and maximum duty cycle limiter.

Features

  • Input Voltage Range: 8 V to 75 V
  • Valley Current Limit At 1.25 A
  • Switching Frequency Can Exceed 1 MHz
  • Integrated N-Channel Buck Switch
  • Integrated Start-Up Regulator
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • Operating Frequency Remains Constant With
    Load and Line Variations
  • Maximum Duty Cycle Limited During Start-Up
  • Adjustable Output Voltage
  • Precision 2.5-V Feedback Reference
  • Thermal Shutdown
  • Exposed Thermal Pad for Improved Heat
    Dissipation

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Parametrics Compare all products in Buck converters (integrated switch)

 
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)
LM5010 LM25010 LM25017 LM5007 LM5010A LM5010A-Q1 LM5160-Q1 LM5160A LM5161
8     6     7.5     9     6     6     4.5     4.5     4.5    
75     42     48     75     75     75     65     65     100    
2.5     2.5     1.25     2.5     2.5     2.5     2     2     2    
70     37     40     73     70     70     60     60     92    
1     1     0.65     0.5     1     1     1.5     2     1    
1     1     1     1     1     1     1     1     1    
50     50     240     50     50     50     50     50     50    
1000     1000     1000     800     1000     1000     1000     1000     1000    
0.65     0.645     1.75     0.5     0.65     0.65     2.3     2.3     2.3    
Enable
Over Current Protection    
Enable
Over Current Protection    
Over Current Protection
Synchronous Rectification    
Enable
Over Current Protection    
Enable
Over Current Protection    
Enable
Over Current Protection    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Pre-Bias Start-Up
Synchronous Rectification
UVLO Adjustable    
Constant on-time (COT)     Constant on-time (COT)     Constant on-time (COT)     Constant on-time (COT)     Constant on-time (COT)     Constant on-time (COT)     Constant on-time (COT)     Constant on-time (COT)     COT with emulated ripple
Constant on-time (COT)    
99     99     90     99     99     99     92     92     92    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 150     -40 to 125
-40 to 150    
-40 to 125     -40 to 125     -40 to 125    
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