LM2651MTC-ADJ Semiconductors - ICs by Texas Instruments

SWITCHING REG 1.5A ADJ SMD 2651

Electronic & Electrical Components>Semiconductors - ICs>Power Management
Status: Unknown
Series: -
RoHS: Unknown
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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.

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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)

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