LTC1438IG-ADJ

LTC1438IG-ADJ, switching regulator controller, 36V, 50mA, 400kHz, SOP

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Price:: US $1.95~1.95 / piece [Get Latest Price]

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1 ~ 460 :	1.95 / Piece

PartNumber:: LTC1438IG-ADJ

Brand:: LT Electronics Co., Ltd. - LT | Pack: SOP | D/C: 97+

Availability:: Supply Ability: 100/Month Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

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Products Upload time: 2013-07-10

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Part Number:LTC1438IG-ADJ
US $1.95 - 1.95
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Product Summary

The LTC1438IG-ADJ is a dual, synchronous stepdown switching regulator controller which drives external N-channel power MOSFETs in a phase-lockable fixed frequency architecture. The Adaptive PowerTM output stage selectively drives two N-channel MOSFETs at frequencies up to 400kHz while reducing switching losses to maintain high efficiencies at low output currents. Applications are (1)Notebook and Palmtop Computers, PDAs; (2)Portable Instruments; (3)Battery-Operated Devices; (4)DC Power DistributioSystems.

Parametrics

LTC1438IG-ADJ absolute maximum ratings: (1)Input Supply Voltage (VIN): 36V to –0.3V; (2)Topside Driver Voltage (BOOST 1, 2): 42V to –0.3V; (3)Switch Voltage (SW1, 2): VIN + 5V to – 5V; (4)EXTVCC Voltage: 10V to –0.3V; (5)POR2, LBO Voltages : 12V to –0.3V; (6)AUXFB Voltage : 20V to –0.3V; (7)AUXDR Voltage: 28V to –0.3V; (8)SENSE+ 1, SENSE+ 2, SENSE– 1, SENSE– 2, VOSENSE2 Voltages : INTVCC + 0.3V to –0.3V; (9)VPROG1, VPROG2 Voltages : INTVCC to –0.3V; (10)PLL LPF, ITH1, ITH2 Voltages : 2.7V to –0.3V; (11)AUXON, PLLIN, SFB1, RUN/SS1, RUN/SS2, LBI Voltages : 10V to –0.3V; (12)Peak Output Current < 10ms (TGL1, 2, BG1, 2): 2A; (13)Peak Output Current < 10ms (TGS1, 2): 250mA; (14)INTVCC Output Current : 50mA; (15)Operating Ambient Temperature Range Commercial : 0°C to 70°C, Industrial : –40°C to 85°C; (16)Junction Temperature (Note 1): 125°C; (17)Storage Temperature Range : –65°C to 150°C; (18)Lead Temperature (Soldering, 10 sec): 300°C.

Features

LTC1438IG-ADJ features: (1)Maintains Constant Frequency at Low Output Currents; (2)Dual N-Channel MOSFET Synchronous Drive; (3)Programmable Fixed Frequency (PLL Lockable); (4)Wide VIN Range: 3.5V to 36V Operation; (5)Built-IPower-OReset Timer; (6)Programmable Soft Start; (7)Low-Battery Detector; (8)Remote Output Voltage Sense; (9)Foldback Current Limiting (Optional); (10)PiSelectable Output Voltage; (11)Logic-Controlled Micropower Shutdown: IQ < 30mA; (12)Output Voltages from 1.19V to 9V; (13)Available i28- and 36-Lead SSOP Packages.