LT1790

1

1790fb

TYPICAL APPLICATION

DESCRIPTION

Micropower SOT-23

Low Dropout Reference Family

FEATURES

APPLICATIONS

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

series references that combine high accuracy and low drift

with low power dissipation and small package size. These

micropower references use curvature compensation to

obtain a low temperature coefficient and trimmed preci-

sion thin-film resistors to achieve high output accuracy. In

addition, each LT1790 is post-package trimmed to greatly

reduce the temperature coefficient and increase the output

accuracy. Output accuracy is further assured by excellent

line and load regulation. Special care has been taken to

minimize thermally induced hysteresis.

The LT1790s are ideally suited for battery-operated sys-

tems because of their small size, low supply current and

reduced dropout voltage. These references provide sup-

ply current and power dissipation advantages over shunt

references that must idle the entire load current to operate.

Since the LT1790 can also sink current, it can operate as

a micropower negative voltage reference with the same

performance as a positive reference.

A Grade—0.05% Max

B Grade—0.1% Max

A Grade—10ppm/°C Max

B Grade—25ppm/°C Max

2.5V, 3V, 3.3V, 4.096V and 5V

Positive Connection for LT1790-2.5

0.1μF

1μF

1, 2

6

4

LT1790-2.5

1790 TA01

OUTPUT VOLTAGE (V)

2.498

2.499

2.500

2.501

2.502

30

40

50

1790 TA02

20

10

25

35

45

15

5

0

LT1790B LIMITS

LT1790A LIMITS

167 UNITS