LM2651MTC-ADJ

TEXAS INSTRUMENTS  LM2651MTC-ADJ  直流-直流开关降压逐步递减稳压器, 可调, 4V-14V输入, 3.3V-13V输出, 1.5A输出, TSSOP-16

The is a Switching Regulator provides high-efficiency power conversion over a 100:1 load range. 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 15mA load. A shutdown pin is available to disable the LM2651 and reduce the supply current to less than 10µA. 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-to-DC converters. The LM2651 has a 300kHz fixed frequency internal oscillator. The high oscillator frequency allows the use of extremely small, low-profile components.

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Patented current sensing for current-mode control

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Input undervoltage lockout

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Adjustable soft-start function

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Current limit and thermal shutdown

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Ultrahigh efficiency up to 97%

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Internal MOSFET switch with low RDSon of 75mR

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7µA Shutdown current