LT1054

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SLVS033G – FEBRUARY 1990 – REVISED JULY 2015

6.5 Electrical Characteristics

over recommended operating free-air temperature range (unless otherwise noted)

LT1054C, LT1054I

PARAMETER

TEST CONDITIONS

(1)

UNIT

MIN

MAX

Regulated output voltage

(3)

25°C

−4.7

−5

−5.2

V

Input regulation

(3)

Full range

5

25

mV

Output regulation

(3)

Full range

10

50

mV

0.35

0.55

Voltage loss,

Full range

V

(4)

1.1

1.6

Output resistance

Full range

10

15

Ω

Oscillator frequency

Full range

15

25

35

kHz

25°C

2.35

2.5

2.65

Reference voltage

V

Full range

2.25

2.75

Maximum switch current

25°C

300

4

mA

2.5

5

Supply current

Full range

mA

3

200

Supply current in

Full range

100

μA

shutdown

(1)

Full range is 0°C to 70°C for the LT1054C and

−40°C to 85°C for the LT1054I.

(2)

(3)

All regulation specifications are for a device connected as a positive-to-negative converter/regulator with R1 = 20 k

Ω, R2 = 102.5 kΩ,

(4)

For voltage-loss tests, the device is connected as a voltage inverter, with terminals 1, 6, and 7 unconnected. The voltage losses may be

(5)

Output resistance is defined as the slope of the curve (

linear portion of the curve. The incremental slope of the curve is higher at currents less than 10 mA due to the characteristics of the

switch transistors.

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