(China (Mainland))
Product Summary
The max1939eei is a synchronous, two-phase, step-down controller capable of delivering load currents up to 60A. The controllers utilize Quick-PWM control architecture in conjunction with active load-current voltage positioning. Quick-PWM control provides instantaneous load-step response, while programmable voltage positioning allows the max1939eei to utilize full transient regulation limits, reducing the output capacitance requirement. Applications are (1)Notebook and Desktop Computers; (2)Servers and Workstations; (3)Blade Servers; (4)High-End Switches; (5)High-End Routers; (6)Macro Base Stations.
Parametrics
max1939eei absolute maximum ratings: (1)VCC to GND: -0.3V to +28V; (2)VDD, PWRGD, ILIM, FB to GND : -0.3V to +6V; (3)EN, GNDS, VPOS, REF, VID_, TIME to GND : 0.3V to VVDD + 0.3V; (4)PGND to GND : -0.3V to +0.3V; (5)CS1, CS2 to GND: -2V to +28V; (6)VLG to GND: -0.3V to +7V; (7)BST1, BST2 to GND : -0.3V to +35V; (8)LX1 to BST1: -7V to +0.3V; (9)LX2 to BST2: -7V to +0.3V; (10)DH1 to LX1: -0.3V to VBST1 + 0.3V; (11)DH2 to LX2: -0.3V to VBST2 + 0.3V; (12)DL1, DL2 to PGND : -0.3V to VVLG + 0.3V; (13)Continuous Power Dissipation (TA = +70°C); (14)28-Pin QSOP (derate 20.8mW/°C above +70°C): 860.2mW; (15)Operating Temperature Range : -40°C to +85°C; (16)Junction Temperature: +150°C; (17)Storage Temperature Range : -65°C to +150°C; (18)Lead Temperature (soldering, 10s): +300°C.
Features
max1939eei features: (1)Process: S12 (Standard 1.2 micron silicon gate CMOS); (2)Package Type: 16-Lead SSOP; (3)Dimensions: 121 x 132 mils.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||
|---|---|---|---|---|---|---|---|---|---|---|
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 MAX1939EEI |
Maxim Integrated Products |
DC/DC Switching Controllers |
Data Sheet |
Negotiable |
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MAX1939EEI-T |
Maxim Integrated Products |
DC/DC Switching Controllers |
Data Sheet |
Negotiable |
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