Rainbow-electronics MAX5085 Manual de usuario descargar pdf (Pagina 6)

MAX5084/MAX5085

65V, 200mA, Low-Quiescent-Current

Linear Regulators in TDFN

6 _______________________________________________________________________________________

MAX5084

MAX5085

ERROR

AMPLIFIER

1.251V

REFERENCE

MUX

5MΩ

15Ω

OUT

SET

GND

OUT_SENSE

INTERNAL

SHUTDOWN

CIRCUITRY

OVERCURRENT

SENSE

STARTUP

CIRCUITRY

THERMAL

SHUTDOWN

Figure 1. Block Diagram

Pin Description

PIN NAME FUNCTION

1INRegulator Supply Input. Supply voltage ranges from 6.5V to 65V. Bypass with a 10µF capacitor to GND.

2EN

Enable Input. Force EN high to turn on the regulator. Pull EN low to place the device in a low-power

shutdown mode. EN has an internal 5MΩ resistor to GND.

3 GND Ground

4 SET

Feedback Input for Setting the Output Voltage. Connect SET to GND for a fixed 5V output (MAX5084), or

3.3V output (MAX5085). Connect to a resistive divider from OUT to SET to GND to adjust the output

voltage from 2.54V to 11V.

OUT_SENSE

Output Voltage Sensing Input. OUT_SENSE is used to Kelvin sense the output voltage in fixed-output

voltage mode. OUT_SENSE can be left floating or connected directly to the load for accurate load

regulation.

6 OUT Regulator Output. Bypass OUT to GND with a minimum 10µF ceramic capacitor.

—EPExposed Pad. Connect to GND for heatsinking.

1 2 3 4 5 6 7 8 9 10 11

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Rainbow-electronics MAX5085 Manual de usuario Pagina 6

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