LM2733 0.6/1.6 MHz Boost Converters With 40V Internal FET Switch in SOT-23 | TI.com

LM2733 (ACTIVE)

0.6/1.6 MHz Boost Converters With 40V Internal FET Switch in SOT-23

 

Recommended alternative parts

  • LM2731  -  1.5A / 22V Internal Switch. SOT-23 Package
  • LM2735  -  2.1A/ 24V Internal Switch In SOT23, LLP, And EMSOP Packages
  • LM2735-Q1  -  2.1A/ 24V Internal Switch In SOT23, LLP, And EMSOP Packages

Description

The LM2733 switching regulators are current-mode boost converters operating fixed frequency of 1.6 MHz (‘X’ option) and 600 kHz (‘Y’\x9Doption).

The use of SOT-23 package, made possible by the minimal power loss of the internal 1-A switch, and use of small inductors and capacitors result in the industry's highest power density. The 40-V internal switch makes these solutions perfect for boosting to voltages of 16 V or greater.

These parts have a logic-level shutdown pin that can be used to reduce quiescent current and extend battery life.

Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal compensation simplifies design and reduces component count.

Features

  • 40-V DMOS FET Switch
  • 1.6 MHz (‘X’), 0.6 MHz (‘Y’) Switching
    Frequency
  • Low RDS(ON) DMOS FET
  • Switch Current up to 1A
  • Wide Input Voltage Range (2.7 V – 14 V)
  • Low Shutdown Current (< 1 µA)
  • 5-Lead SOT-23 Package
  • Uses Tiny Capacitors and Inductors
  • Cycle-by-Cycle Current Limiting
  • Internally Compensated

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Parametrics Compare all products in Boost converters (integrated switch)

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Switch Current Limit (Typ) (A)
Regulated outputs (#)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Features
Duty cycle (Max) (%)
Operating temperature range (C)
Type
Rating
Package Group
LM2733 LM2621 LM2623 LM2731 LM27313 LM2735 LM2735-Q1 LM5001 TLV61046A TPS55340 TPS61040 TPS61087 TPS61170
2.7     1.2     0.8     2.7     2.7     2.7     2.7     3.1     1.8     2.9     1.8     2.5     3    
14     14     14     14     14     5.5     5.5     75     5.5     32     6     6     18    
3     1.24     1.24     1.23     4     3     3     1.26     3.3     3     1.8     3     3    
40     14     14     22     28     24     24     75     28     38     28     18.5     38    
1.5     2.85     2.85     1.5     1.25     2.25     2.25     1     0.9     6.6     0.4     4     1.2    
1     1     1     1     1     1     1     1     1     1     1     1     1    
400     2000     300     600     1150     520     520     50     850     100     50     900     1000    
1850     2000     2000     1600     1900     1600     1600     1500     1250     1200     1000     1500     1200    
1.1     0.08     0.08     2     2.1     7     7     3.1     0.11     0.5     0.028     0.075     2.3    
Enable
Light Load Efficiency    
Enable     Enable     Enable     Enable
Light Load Efficiency    
Enable     Enable     Enable
Frequency Synchronization
UVLO Adjustable    
Enable
Light Load Efficiency
Load Disconnect    
Enable
Frequency Synchronization
Light Load Efficiency    
Enable     Enable
Power Good    
Enable
Light Load Efficiency    
96     80     90