LT1767EMS8

Monolithic 1.5A, 1.25MHz, Step-Down, Switching Regulator, MSOP8, Synchronizable to 2MHz

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PartNumber:: LT1767EMS8

Brand:: Linear Technology - Linear | Pack: MSOP | D/C: 03+

Availability:: Supply Ability: 10000/Week Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

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Products Upload time: 2011-11-30

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Product Summary

The LT1767EMS8 is a 1.25MHz monolithic buck switching regulator. A high efficiency 1.5A, 0.22Ω switch is included on the die together with all the control circuitry required to complete a high frequency, current mode switching regulator. Current mode control provides fast transient response and excellent loop stability. New design techniques of LT1767EMS8 achieve high efficiency at high switching frequencies over a wide operating range. A low dropout internal regulator maintains consistent performance over a wide range of inputs from 24V systems to Li-Ion batteries. An operating supply current of 1mA improves efficiency, especially at lower output currents. Shutdown reduces quiescent current to 6mA. Maximum switch current remains constant at all duty cycles. Synchronization allows an external logic level signal to increase the internal oscillator from 1.4MHz to 2MHz.

Parametrics

LT1767EMS8 absolute maximum ratings: (1)Input Voltage: 25V; (2)BOOST Pin Above SW: 20V; (3)Max BOOST Pin Voltage: 35V; (4)SHDN Pin: 25V; (5)FB Pin Voltage: 6V; (6)FB Pin Current: 1mA; (7)SYNC Pin Current: 1mA; (8)Operating Junction Temperature Range: – 40℃ to 125℃; (9)Storage Temperature Range: – 65℃ to 150℃; (10)Lead Temperature (Soldering, 10 sec): 300℃.

Features

LT1767EMS8 features: (1)1.5A Switch ia Small MSOP Package; (2)Constant 1.25MHz Switching Frequency; (3)High Power Exposed Pad (MS8E) Package; (4)Wide Operating Voltage Range: 3V to 25V; (5)High Efficiency 0.22W Switch; (6)1.2V Feedback Reference Voltage; (7)Fixed Output Voltages of 1.8V, 2.5V, 3.3V, 5V; (8)2% Overall Output Tolerance; (9)Uses Low Profile Surface Mount Components; (10)Low ShutdowCurrent: 6mA; (11)Synchronizable to 2MHz; (12)Current Mode Loop Control; (13)Constant Maximum Switch Current Rating at All Duty Cycles.