LM27761 datasheet(6/29 Pages) TI1

Part #	LM27761

Description	Low-Noise Regulated Switched-Capacitor Voltage Inverter

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IOUT (A)

0.001

0.01

0.1

0.25

-1.85

-1.83

-1.81

-1.79

-1.77

-1.75

D006

25°C

85°C

-40°C

IOUT (A)

0.001

0.01

0.1

1

-5.2

-5.15

-5.1

-5.05

-5

-4.95

-4.9

-4.85

-4.8

D007

25°C

85°C

-40°C

VIN (V)

2.7

3.2

3.7

4.2

4.7

5.2

5.5

0

50

100

150

200

250

300

350

400

450

500

D015

25°C

85°C

-40°C

VIN (V)

2.7

3.2

3.7

4.2

4.7

5.2

5.7

0

1

2

3

4

5

6

7

8

9

10

D016

25qC

85qC

-40qC

Output Current (mA)

0

50

100

150

200

250

0

0.5

1

1.5

2

2.5

3

3.5

D001

VIN = 3 V, VOUT = -1.8 V

VIN = 5.5 V, VOUT = -5 V

VIN (V)

2.7

3.2

3.7

4.2

4.7

5.2

5.5

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

2

D002

6

LM27761

SNVSA85B – OCTOBER 2015 – REVISED FEBRUARY 2016

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6.6 Typical Characteristics

Unless otherwise specified, TA = 25°C, VIN = 5 V, and values for C1 to C4 are as shown in the Typical Application.

Figure 1. Output Voltage Ripple vs Output Current

VOUT = –1.8 V

IOUT = 100 mA

Figure 2. Output Voltage Ripple vs Input Voltage

EN = 1

ILOAD = 0 mA

Figure 3. Quiescent Current

EN = 0

Figure 4. Shutdown Current

VIN = 3 V

VOUT = –1.8 V

R1 = 237 k

Ω

R2 = 500 k

Ω

Figure 5. Load Regulation

VIN = 5.5 V

VOUT = –5 V

R1 = 1.54 M

Ω

R2 = 500 k

Ω

Figure 6. Load Regulation

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