LTC1929CG

LTC1929CG, Synchronous Step-Down Switching Regulators, 36V to -0.3V, 50mA, SOP

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Price:: US $0.70~1.00 / piece [Get Latest Price]

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Qty (lots)	Price/lot
1 ~ 10 :	1.00 / Piece
20 ~ 100 :	0.70 / Piece

PartNumber:: LTC1929CG

Brand:: LT Electronics Co., Ltd. - LT | Pack: SOP | D/C: 06+

Availability:: Supply Ability: 1/Month Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

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Total Price:: US $0

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Products Upload time: 2013-08-16

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Part Number:LTC1929CG
US $0.70 - 1.00
LTC1929CG

US $0.70 - 1.00 / Piece
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Product Summary

The LTC1929CG is a 2-phase, single output, synchronous step-down current mode switching regulator controller. It drive N-channel external power MOSFET stages in a phase-lockable fixed frequency architecture. The 2-phase controllers drive their two output stages out of phase at frequencies up to 300kHz to minimize the RMS ripple currents in both input and output capacitors. The 2-phase technique effectively multiplies the fundamental frequency by two, improving transient response while operating each channel at an optimum frequency for efficiency. Thermal design is also simplified. The applications of the LTC1929CG are Desktop Computers, Internet/Network Servers, Large Memory Arrays, DC Power Distribution Systems.

Parametrics

LTC1929CG absolute maximum ratings: (1)Input Supply Voltage (VIN): 36V to -0.3V; (2)Topside Driver Voltages (BOOST1,2): 42V to -0.3V; (3)Switch Voltage (SW1, 2): 36V to -5V; (4)Peak Output Current <1μs(TGL1,2, BG1,2): 3A; (5)INTVCC RMS Output Current: 50mA; (6)Operating Ambient Temperature Range: 0℃ to 85℃; (7)Storage Temperature Range: –65℃ to 150℃; (8)Lead Temperature (Soldering, 10 sec): 300℃.

Features

LTC1929CG features: (1)2-Phase Single Output Controller; (2)Reduces Required Input Capacitance and Power Supply Induced Noise; (3)Current Mode Control Ensures Current Sharing; (4)Phase-Lockable Fixed Frequency: 150kHz to 300kHz; (5)True Remote Sensing Differential Amplifier; (6)±1% Output Voltage Accuracy; (7)Power Good Output Voltage Monitor (LTC1929-PG); (8)Wide VIN Range: 4V to 36V Operation; (9)Very Low Dropout Operation: 99% Duty Cycle; (10)Adjustable Soft-Start Current Ramping; (11)Internal Current Foldback; (12)Short-Circuit Shutdown Timer with Defeat Option; (13)Overvoltage Soft-Latch Eliminates Nuisance Trips; (14)Available in 28-Lead SSOP Package.