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MAX1902EAI from MAXIM, MAXIM - Dallas Semiconductor 7740pcs , SSOP-28,500kHz Multi-Output / Low-Noise Power-Supply Controllers for Notebook Computers
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MAX1902EAI MAXIM N/a 7740
MAX1902EAI from MAX, MAXIM - Dallas Semiconductor 6000pcs , SOP,500kHz Multi-Output / Low-Noise Power-Supply Controllers for Notebook Computers
MAX1902EAI from MAXIM  , MAXIM - Dallas Semiconductor 1500pcs,500kHz Multi-Output / Low-Noise Power-Supply Controllers for Notebook Computers
MAX1902EAI from MAXI, MAXIM - Dallas Semiconductor 99pcs , SMD,500kHz Multi-Output / Low-Noise Power-Supply Controllers for Notebook Computers

MAX1901/MAX1902/MAX190419-2224; Rev 3; 12/03500kHz Multi-Output, Low-Noise Power-SupplyControllers for Notebook ComputersFeaturesThe MAX1901/MAX1902/MAX1904 are buck-topology,  97% Efficiencystep-down, switch-mode, power-supply controllers that 4.2V to 30V Input Rangegenerate logic-supply voltages in battery-powered sys- 2.5V to 5.5V Dual Adjustable Outputstems. These high-performance, dual/triple-output devices Selectable 3.3V and 5V Fixed or Adjustableinclude on-board power-up sequencing, power-good sig-Outputs (Dual Mode™)naling with delay, digital soft-start, secondary winding 12V Linear Regulatorcontrol, low dropout circuitry, internal frequency-compen- Adjustable Secondary Feedbacksation networks, and automatic bootstrapping.(MAX1901/MAX1904)Up to 97% efficiency is achieved through synchronous 5V/50mA Linear Regulator Outputrectification and Maxim’s proprietary Idle Mode™ control Precision 2.5V Reference Outputscheme. Efficiency is greater than 80% over a 1000:1 Programmable Power-Up Sequencingload-current range, which extends battery life in system Power-Good (RESET) Outputsuspend or standby mode. Excellent dynamic response Output Overvoltage Protectioncorrects output load transients within five clock cycles.(MAX1901/MAX1902)Strong 1A on-board gate drivers ensure fast external N- Output Undervoltage Shutdownchannel MOSFET switching.(MAX1901/MAX1902)These devices feature a logic-controlled and synchroniz- 333kHz/500kHz Low-Noise, Fixed-Frequencyable, fixed-frequency, pulse-width modulation (PWM)Operationoperating mode. This reduces noise and RF interference Low-Dropout, 98% Duty-Factor Operationin sensitive mobile communications and pen-entry appli- 2.5mW Typical Quiescent Power (12V input, bothcations. Asserting the SKIP pin enables fixed-frequencySMPSs on)mode, for lowest noise under all load conditions. 4µA Typical Shutdown CurrentThe MAX1901/MAX1902/MAX1904 include two PWM reg-ulators, adjustable from 2.5V to 5.5V with fixed 5.0V andOrdering Information3.3V modes. All these devices include secondary feed-back regulation, and the MAX1902 contains a 12V/120mAPART TEMP RANGE PIN-PACKAGElinear regulator. The MAX1901/MAX1904 include a sec-MAX1901EAI -40°C to +85°C 28 SSOPondary feedback input (SECFB), plus a control pinMAX1901ETJ -40°C to +85°C32 Thin QFN 5m m x 5mm (STEER) that selects which PWM (3.3V or 5V) receives thesecondary feedback signal. SECFB provides a methodMAX1902EAI -40°C to +85°C 28 SSOPfor adjusting the secondary winding voltage regulationMAX1902ETJ -40°C to +85°C32 Thin QFN 5m m x 5mm point with an external resistor divider, and is intended toMAX1904EAI -40°C to +85°C 28 SSOPaid in creating auxiliary voltages other than fixed 12V.MAX1904ETJ -40°C to +85°C32 Thin QFN 5m m x 5mm The MAX1901/MAX1902 contain internal output overvolt-age and undervoltage protection MAX1901/MAX1902/MAX190419-2224; Rev 3; 12/03500kHz Multi-Output, Low-Noise Power-SupplyControllers for Notebook ComputersApplicationsINPUTNotebook and Subnotebook Computers5V (RTC) 12VPDAs and Mobile Communicators5V 12VLINEAR LINEARDesktop CPU Local DC-DC Converters 3.3V 5V3.3V 5VSMPS SMPSIdle Mode is a trademark of Maxim Integrated Products, Inc.Dual Mode is a trademark of Maxim Integrated Products, Inc.POWER-UP POWER-ON/OFF RESETSEQUENCE GOODPin Configurations appear at end of data sheet.____ Maxim Integrated Products 1For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at .500kHz Multi-Output, Low-Noise Power-SupplyControllers for Notebook ComputersABSOLUTE MAXIMUM RATINGSV+ to GND........-0.3V to +36V DH3 to LX3 .-0.3V to (BST3 + 0.3V)PGND to GND......±0.3V DH5 to LX5 .-0.3V to (BST5 + 0.3V)V to GND .-0.3V to +6V V , REF Short to GND ...MomentaryL LBST3, BST5 to GND .-0.3V to +36V 12OUT Short to GND.....ContinuousCSH3, CSH5 to GND...-0.3V to +6V REF Current.....+5mA to -1mAFB3 to GND.-0.3V to (CSL3 + 0.3V) V Current.+50mALFB5 to GND..-0.3V to (CSL5 +0.3V) 12OUT Current . .......+200mALX3 to BST3........-6V to +0.3V V Shunt Current......+15mADDLX5 to BST5........-6V to +0.3V Continuous Power Dissipation (T = +70°C)AREF, SYNC, SEQ, STEER, SKIP, 28-Pin SSOP (derate 9.52mW/°C above +70°C) ......762mWTIME/ON5, SECFB, RESET to GND ........-0.3V to (V + 0.3V) 32-Pin Thin QFN (derate 21.3mW/°C above +70°C) ..1702mWLV to GND......-0.3V to +20V Operating Temperature Range -40°C to +85°CDDRUN/ON3, SHDN to GND..-0.3V to (V+ + 0.3V) Storage Temperature Range .-65°C to +160°C12OUT to GND ......-0.3V to (V + 0.3V) Lead Temperature (soldering, 10s) .....+300°CDDDL3, DL5 to PGND....-0.3V to (V + 0.3V)LStresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functionaloperation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure toabsolute maximum rating conditions for extended periods may affect device reliability.

MAX1902EAI ,500kHz Multi-Output / Low-Noise Power-Supply Controllers for Notebook ComputersApplicationsINPUTNotebook and Subnotebook Computers5V (RTC) 12VPDAs and Mobile Communicators5V 12VL ..
MAX1902EAI+ ,500kHz Multi-Output, Low-Noise Power-Supply Controllers for Notebook ComputersFeaturesThe MAX1901/MAX1902/MAX1904 are buck-topology, ♦ 97% Efficiencystep-down, switch-mode, powe ..
MAX1902EAI+T ,500kHz Multi-Output, Low-Noise Power-Supply Controllers for Notebook ComputersApplicationsINPUTNotebook and Subnotebook Computers5V (RTC) 12VPDAs and Mobile Communicators5V 12VL ..
MAX1904BEAI+ ,500kHz Multi-Output, Low-Noise Power-Supply Controllers for Notebook ComputersApplicationsINPUTNotebook and Subnotebook Computers5V (RTC) 12VPDAs and Mobile Communicators5V 12VL ..
MAX1904BEAI+ ,500kHz Multi-Output, Low-Noise Power-Supply Controllers for Notebook ComputersFeaturesThe MAX1901/MAX1902/MAX1904 are buck-topology, ♦ 97% Efficiencystep-down, switch-mode, powe ..
MAX485ECSA ,15kV ESD-Protected / Slew-Rate-Limited / Low-Power / RS-485/RS-422 TransceiversGeneral Description ________
MAX485ECSA+ ,±15kV ESD-Protected, Slew-Rate-Limited, Low-Power, RS-485/RS-422 TransceiversApplications:ate from a single +5V supply.MAX3293/MAX3294/MAX3295: 20Mbps, +3.3V,Drivers are short- ..
MAX485ECSA+T ,±15kV ESD-Protected, Slew-Rate-Limited, Low-Power, RS-485/RS-422 TransceiversApplications:ceivers on the bus. The MAX488E–MAX491E areMAX3483E/MAX3485E/MAX3486E/MAX3488E/designe ..
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