LTC6652

4

6652fb

FREQUENCY (kHz)

0.01

0.1

1

10

6652 G22

300

200

100

0

400

TIME (1 SECOND/DIV)

6652 G21

INPUT VOLTAGE (V)

0

1.2502

1.2504

1.2506

610

6652 G18

1.2500

1.2498

24

812

14

1.2496

1.2494

125°C

–40°C

25°C

TYPICAL PERFORMANCE CHARACTERISTICS

1.25V Load Regulation (Sinking)

1.25V Low Frequency 0.1Hz to

10Hz Transient Noise

1.25V Output Voltage Noise

Spectrum

1.25 Sinking Current Without

Output Capacitor

1.25 Sinking Current with Output

Capacitor

1.25V Output Voltage

Temperature Drift

1.25V Load Regulation (Sourcing)

1.25V Line Regulation

TEMPERATURE (°C)

–80

1.2500

1.2505

1.2510

40

160

6652 G17

1.2495

1.2490

–40

0

80

120

3 TYPICAL PARTS

OUTPUT CURRENT (mA)

0.1

–250

–200

–150

–100

0

1

6652 G19

–50

10

125 C

25 C

–40 C

OUTPUT CURRENT (mA)

0.1

0

100

200

300

50

150

250

350

400

110

–40°C

125°C

6652 G20

25°C

500μs/DIV

500mV/DIV

1mA

0mA

6652 G23

500μs/DIV

500mV/DIV

1mA

0mA

6652 G24

LOAD CURRENT (mA)

NO CAP

100pF

1nF

10nF

0.1μF

1μF

10μF

–5

–1 0

5

6652 G16

REGION OF

MARGINAL

STABILITY

1.25V Stability with Output

Capacitance

Characteristic curves are similar for most

LTC6652s. Curves from the LTC6652-1.25, LTC6652-2.5 and the LTC6652-5 represent the extremes and typical of the voltage options.

Characteristic curves for other output voltages fall between these curves and can be estimated based on their output.