(China (Mainland))
Product Summary
The max1644eae-t constant-off-time, PWM step-down DC-DC converter is ideal for use in applications such as PC cards, CPU daughter cards, and desktop computer bus-termination boards. The max1644eae-t features internal synchronous rectification for high efficiency and reduced component count. It requires no external Schottky diode. The max1644eae-t uses a unique current-mode, constant-off-time, PWM control scheme, which includes an Idle Mode to maintain high efficiency during light-load operation. The programmable constant-off-time architecture sets switching frequencies up to 350kHz, allowing the user to optimize performance trade-offs between efficiency, output switching noise, component size, and cost.
Parametrics
max1644eae-t absolute maximum ratings: (1)Vcc, IN to GND: -0.3V to +6V; (2)IN to VCC: 0.3V; (3)PGND to GND: 0.3V; (4)LX to PGND: -0.3V to (VIN + 0.3V); (5)All other Pins to GND: -0.3V to (VCC + 0.3V); (6)Continuous LX Output Current: 2.5A; (7)Storage Temp.: -65°C to +150°C; (8)Lead Temp. (10 sec.): +300°C; (9)Continuous Power Dissipation (TA = +70°C)16-Pin SSOP: 1.2W.
Features
max1644eae-t features: (1)Process: S12 (Standard 1.2 micron silicon gate CMOS); (2)Package Type: 16-Lead SSOP; (3)Dimensions: 121 x 132 mils.
Diagrams
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Pricing (USD) |
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 MAX1644EAE-T |
Maxim Integrated Products |
DC/DC Switching Controllers |
Data Sheet |
Negotiable |
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