Product Summary

The LM2651MTC-ADJ is a switching regulator provides high efficiency power conversion over a 100:1 load range (1.5A to 15mA). This feature makes the LM2651MTC-ADJ 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 LM2651MTC-ADJ enters a low power hysteretic or “sleep” mode to keep the efficiency high. The applications of the LM2651MTC-ADJ include Personal digital assistants (PDAs), Computer peripherals, Battery-powered devices, Handheld scanners, High efficiency 5V conversion.

Parametrics

LM2651MTC-ADJ absolute maximum ratings: (1)Input Voltage: 15V; (2)Feedback Pin Voltage: -0.4V ≤ VFB ≤ 5V; (3)Power Dissipation (TA =25℃): 893 mW; (4)Junction Temperature Range -40℃ ≤ TJ ≤ +125℃; (5)Storage Temperature Range -65℃ to +150℃; (6)ESD Susceptibility, Human Body Model (Note 3): 1kV.

Features

LM2651MTC-ADJ features: (1)Ultra high efficiency up to 97%; (2)High efficiency over a 1.5A to milliamperes load range; (3)4V to 14V input voltage range; (4)1.8V, 2.5V, 3.3V, or ADJ output voltage; (5)Internal MOSFET switch with low RDS(on) of 75mW; (6)300kHz fixed frequency internal oscillator; (7)7μA shutdown current; (8)Patented current sensing for current mode control; (9)Input undervoltage lockout; (10)Adjustable soft-start; (11)Current limit and thermal shutdown; (12)16-pin TSSOP package.

Diagrams

LM2651MTC-ADJ block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM2651MTC-ADJ
LM2651MTC-ADJ

National Semiconductor (TI)

Switching Converters, Regulators & Controllers

Data Sheet

0-184: $1.02
184-276: $1.00
276-552: $0.98
552-828: $0.96
LM2651MTC-ADJ/NOPB
LM2651MTC-ADJ/NOPB

National Semiconductor (TI)

Switching Converters, Regulators & Controllers 1.5A HIGH EFFICIENCY SWITCHING REG

Data Sheet

0-1: $1.89
1-10: $1.70
10-25: $1.51
25-50: $1.42