(Hong Kong)
Product Summary
The LTC1433IGN#TR is a monolithic pulse width modulated step-down DC/DC converter. By utilizing current mode switching techniques, the device provides excellent AC and DC load and line regulation. The LTC1433IGN#TR operates at a fixed frequency with the LTC1434 phase-lockable to an external clock signal. The device incorporates two internal P-channel power MOSFETs with a parallel combined resistance of 0.6W (at a supply of 10V). The applications of the LTC1433IGN#TR include Cellular Telephones, Portable Instruments, Wireless Modems, RF Communications, Distributed Power Systems, Scanners, Battery-Powered Equipment.
Parametrics
LTC1433IGN#TR absolute maximum ratings: (1)Input Supply Voltage (PWRVIN, SVIN): 13.5V to -0.3V; (2)DC Small Switch Current (SSW): 100mA; (3)Peak Small Switch Current (SSW): 300mA; (4)Small Switch Voltage (SSW): (VIN + 0.3V) to (VIN -13.5V); (5)DC Large Switch Current (BSW): 600mA; (6)Peak Large Switch Current (BSW): 1.2A; (7)Large Switch Voltage (BSW): (VIN + 0.3V) to (VIN -13.5V); (8)PLLIN, PLL LPF, ITH, COSC: 2.7V to -0.3V; (9)POR, LBO: 12V to -0.3V; (10)LBI, VOSENSE: 10V to -0.3V.
Features
LTC1433IGN#TR features: (1)High Efficiency: Up to 93%; (2)Constant Frequency Adaptive PowerTM Operation; (3)Input Voltage Range: 3V to 13.5V; (4)Internal 0.6W Power Switch (VIN = 10V); (5)Low Dropout Operation: 100% Duty Cycle; (6)Low-Battery Detector; (7)Internal Power-On Reset Timer; (8)Current Mode Operation for Excellent Line and Load Transient Response; (9)Low Quiescent Current: 470mA; (10)Shutdown Mode Draws Only 15mA Supply Current; (11)±1% Reference Accuracy; (12)Available in 16- and 20-Lead Narrow SSOP.
Diagrams
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 LTC1433IGN#TR |
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IC REG BUCK 3.3V/5V/ADJ 16SSOP |
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LTC1433IGN#TRPBF |
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IC REG BUCK 3.3V/5V/ADJ 16SSOP |
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