(Hong Kong)
Product Summary
The LTC1624IS8#TR is a current mode switching regulator controller that drives an external N-channel power MOSFET using a fixed frequency architecture. It can be operated in all standard switching configurations including boost, step-down, inverting and SEPIC. Burst Mode operation provides high efficiency at low load currents. A maximum high duty cycle limit of 95% provides low dropout operation which extends operating time in battery-operated systems. The applications of the LTC1624CS8#TR include Notebook and Palmtop Computers, PDAs, Cellular Telephones and Wireless Modems, Battery-Operated Digital Devices, DC Power Distribution Systems, Battery Chargers.
Parametrics
LTC1624IS8#TR absolute maximum ratings: (1)Input Supply Voltage (VIN): 36V to -0.3V; (2)Topside Driver Supply Voltage (BOOST): 42V to -0.3V; (3)Switch Voltage (SW): 36V to -0.6V; (4)Differential Boost Voltage; (5)(BOOST to SW): 7.8V to -0.3V; (6)SENSE -Voltage, VIN < 15V: (VIN + 0.3V) to -0.3V; VIN 3 15V: (VIN +0.3V) to (VIN -15V); (7)ITH/RUN, VFB Voltages: 2.7V to -0.3V; (8)Peak Driver Output Current < 10ms (TG): 2A; (9)Operating Temperature Range: -40℃ to 85℃; (10)Junction Temperature (Note 1): 125℃; (11)Storage Temperature Range: -65℃ to 150℃; (12)Lead Temperature (Soldering, 10 sec): 300℃.
Features
LTC1624IS8#TR features: (1)N-Channel MOSFET Drive; (2)Implements Boost, Step-Down, SEPIC and Inverting Regulators; (3)Wide VIN Range: 3.5V to 36V Operation; (4)Wide VOUT Range: 1.19V to 30V in Step-Down Configuration; (5)±1% 1.19V Reference; (6)Low Dropout Operation: 95% Duty Cycle; (7)200kHz Fixed Frequency; (8)Low Standby Current; (9)Very High Efficiency; (10)Remote Output Voltage Sense; (11)Logic-Controlled Micropower Shutdown; (12)Internal Diode for Bootstrapped Gate Drive; (13)Current Mode Operation for Excellent Line and Load Transient Response; (14)Available in an 8-Lead SO Package.
Diagrams
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 LTC1624IS8#TR |
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IC REG CTRLR BST FLYBK INV 8SOIC |
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LTC1624IS8#TRPBF |
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IC REG CTRLR BST FLYBK INV 8SOIC |
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