6.6 Typical Characteristics

at operating temperature TJ = 25°C, VIN = VOUT(NOM) + 1.0 V or 2.5 V (whichever is greater), IOUT = 1 mA, ON/OFF pin tied to

VIN, CIN = 1.0 µF, and COUT = 4.7 µF (unless otherwise noted)

9.85

9.90

9.95

10.00

10.05

10.10

10.15

10.20

-50

-25

0

25

50

75

100

125

150

Temperature – °C

VI = 11 V

VO = 10 V

CI = 1 µF

CO = 4.7 µF

IO = 1 mA

Figure 6-1. Output Voltage vs Temperature for Legacy Chip

3.295

3.305

3.315

3.325

3.335

3.345

−50

−25

0

25

50

75

100

125

150

VI = 4.3 V

VO = 3.3 V

Ci = 1 mF

Co = 4.7 mF

IO = 1 mA

Temperature − ( C)

°

Figure 6-2. Output Voltage vs Temperature for Legacy Chip

Temp

C

-75

-50

-25

0

25

50

75

100

125

150

3.28

3.285

3.29

3.295

3.3

3.305

3.31

3.315

VI = 4.3 V

VO = 3.3 V

Iout = 1mA

CO = 4.7uF

VIN = 4.3 V, VOUT = 3.3 V (for new chip)

Figure 6-3. Output Voltage vs Temperature for New Chip

Figure 6-4. Dropout Voltage vs Temperature for Legacy Chip

Temperature (°C)

-75

-50

-25

0

25

50

75

100

125

150

0

50

100

150

200

250

300

350

400

450

Iout

1mA

10mA

50mA

150mA

Figure 6-5. Dropout Voltage vs Temperature for New Chip

IOUT (mA)

0

20

40

60

80

100

120

140

160

0

25

50

75

100

125

150

175

200

225

250

VO = 3.3 V

CO = 4.7uF

Temperature

-55 °C

-40 °C

0 °C

25 °C

85 °C

125 °C

150 °C

Figure 6-6. Dropout Voltage vs Load Current for New Chip

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LP2985

SLVS522Q – JULY 2004 – REVISED DECEMBER 2022

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