LM2651MTC-ADJ

Electronic & Electrical Components

> Semiconductors - ICs

> Power Management

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Series Information for LM2651MTC-ADJ - Texas Instruments

Features

  • feature
    1.8-V, 2.5-V, 3.3-V, or ADJ Output Voltage
  • feature
    16-Pin TSSOP Package
  • feature
    300-kHz Fixed Frequency Internal Oscillator
  • feature
    4-V to 14-V Input Voltage Range
  • feature
    7-u00b5A Shutdown Current
  • feature
    Adjustable Soft-Start
  • feature
    Current Limit and Thermal Shutdown
  • feature
    High-Efficiency Over a 1.5-A to 1.5-mA Load Range
  • feature
    Input Undervoltage Lockout
  • feature
    Internal MOSFET Switch With Low RDS(on) of 75 mu2126
  • feature
    Patented Current Sensing for Current Mode Control
  • feature
    Ultrahigh Efficiency up to 97%

Description

SWITCHING REG 1.5A ADJ SMD 2651
The LM2651 switching regulator provides highefficiency power conversion over a 100:1 load range (1.5 A to 15 mA). This feature makes the LM2651 an ideal fit in battery-powered applications that demand long battery life in both run and standby modes. Synchronous rectification is used to achieve up to 97% efficiency. At light loads, the LM2651 enters a low power hysteretic or sleep mode to maintain high efficiency. In many applications, the efficiency still exceeds 80% at 15-mA load. A shutdown pin is available to disable the LM2651 and reduce the supply current to less than 10 µA. The LM2651 contains a patented current sensing circuitry for current mode control. This feature eliminates the external current sensing resistor required by other current-mode DC-DC converters. The LM2651 has a 300-kHz fixed frequency internal oscillator. The high oscillator frequency allows the use of extremely small, low-profile components. A programmable soft-start feature limits current surges from the input power supply at start-up and provides a simple means of sequencing multiple power supplies. Other protection features include input undervoltage lockout, current limiting, and thermal shutdown.

Specifications

Topology:
Synchronous Buck (Step Down)
Input Voltage Min:
4V
Input Voltage Max:
14V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
TSSOP
No. of Pins:
16Pins
Output Current:
1.5A
Output Voltage Min:
3.3V
Output Voltage Max:
13V
Switching Frequency:
345kHz
Operating Temperature Max:
125°C
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)
Adjustable Output Voltage Min:
1.285V
Base Number:
2651
Frequency:
300kHz
IC Generic Number:
2651
Logic Function Number:
2651
Operating Temperature Min:
-40°C
Operating Temperature Range:
-40°C to +125°C
Output Current Max:
2.6A
Output Voltage:
1.263V
Power Supply IC Type:
Step-down switching regulator
Primary Input Voltage:
14V
Supply Voltage Min:
4V
Switch Output Current Isw Max:
2.6A
Voltage Regulator Type:
Switching Step Down (Buck)

Alternate Descriptions

Avnet Europe

Conv DC-DC Single Step Down 4V to 14V 16-Pin TSSOP Rail

Avnet Europe product