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MAX5007 Datasheet(PDF) 6 Page - Maxim Integrated Products |
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MAX5007 Datasheet(HTML) 6 Page - Maxim Integrated Products |
6 / 13 page 150mA USB LDO Regulators with ±15kV TVS and µP Reset 6 _______________________________________________________________________________________ Pin Description PIN NAME DESCRIPTION 1IN Regulator Input. Supply voltage ranges from +4.0V to +5.5V. Bypass with a 1 µF ceramic capacitor to ground. 2D+ D+ ESD/Transient Suppression Input. Connect directly to USB port D+ data input. SELR high and ENR low connects D+ to OUT through a 1.5k Ω resistor. 3, 9 GND Ground. This pin also functions as a heatsink. Solder to large pads or the circuit board ground plane to maximize thermal dissipation. 4D- D- ESD/Transient Suppression Input. Connect directly to USB port D- data input. SELR low and ENR low connects D- to OUT through a 1.5k Ω resistor. 5 SELR USB Full-Speed/Low-Speed Termination Resistor Select. Logic high connects the termination resistor to D+ for full-speed peripherals. Logic low connects the termination resistor to D- for low- speed peripherals. An internal 1.5k Ω resistor connects to OUT when ENR is low. 6 ENR USB Termination Resistor Enable. When reset is not asserted, ENR low enables the termination resistor connection. ENR high or a reset disables the termination resistor connection. RESET Active-Low Reset Output. RESET remains low while VOUT is below the reset threshold or while MR is held low. RESET remains low for the duration of the reset timeout period after the reset conditions are terminated. (MAX5005/MAX5006 ONLY) 7 RESET Active-High Reset Output. RESET remains high while VOUT is below the reset threshold or while MR is held low. RESET remains high for the duration of the reset timeout period after the reset conditions are terminated. (MAX5007 ONLY) 8 MR Active-Low Manual Reset Input. A logic low forces a reset. Reset remains asserted for the duration of the reset timeout period after MR transitions from low to high. Leave unconnected or connect to OUT if not used. MR has an internal pullup resistor of 25k Ω to OUT. 10 OUT Voltage Regulator Output. Fixed +3.3V. Sources up to 150mA. Bypass with a 1 µF (min) capacitor for full rated performance. |
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