Precision, Micropower, 3V Series

Voltage Reference in SOT23

_______________________________________________________________________________________

5

Detailed Description

The MAX6010 is a precision, low-noise, low-dropout,

micropower, bandgap voltage reference in a SOT23

package. This three-terminal reference operates with

an input voltage from 3.2V to 5.5V, and outputs 3V. The

device sources up to 7mA with < 200mV of dropout

voltage and requires only 5µA (max) supply current.

Applications Information

Output/Load Capacitance

The MAX6010 requires a minimum of 1nF load to main-

tain output stability.

The device remains stable for capacitive loads as high

as 1µF. In applications where the load or the supply

can experience step changes, a larger output capaci-

tor reduces the amount of overshoot (or undershoot)

and assists the circuit’s transient response.

Supply Current

The 5µA maximum supply current varies only 0.05µA/V

with the supply voltage.

When the supply voltage is below the minimum-speci-

fied input voltage (as during turn-on), the device can

draw up to 20µA beyond the nominal supply current.

The input voltage source must be capable of providing

this current to ensure reliable turn-on.

Turn-On Time

The MAX6010 typically turns on and settles to within

0.1% of the final value in 700µs. The turn-on time can

increase with the device operating at the minimum

dropout voltage and the maximum load.

PIN

NAME

FUNCTION

1

IN

Supply Voltage Input

2

OUT

Reference Voltage Output. Bypass with at

least 1nF to ground. (See the Output/Load

Capacitance section.)

3

GND

Ground

Pin Description

LOAD-TRANSIENT RESPONSE

MAX6010 toc13

400

µs/div

1V/div

-1mA

2V/div

7mA

LINE-TRANSIENT RESPONSE

MAX6010 toc14

400

µs/div

10mV/div

200mV/div

4.8V

Typical Operating Characteristics (continued)