ADM8830ACP datasheet(5/8 Pages) AD

Part #	ADM8830ACP

Description	Charge Pump Regulator for Color TFT Panel

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ADM8830

–4–

Typical Performance Characteristics–ADM8830

–5–

OUTPUT CURRENT – A

80

50

10

20

30

40

60

70

30 50 70 90 110 130 150 170 190

TPC 1. LDO Efficiency in Blanking

Mode with VCC = 3 V

OUTPUT CURRENT – mA

85

2

4

6

8

84

83

82

81

80

79

78

0

3

5

7

1

TPC 4. LDO Efficiency in Scanning

Mode with VCC = 3 V

VCC – V

5.30

5.25

5.20

5.15

5.10

5.00

4.95

4.90

5.05

2.6

DEVICE 1 @ –40C

DEVICE 1 @ +25C

DEVICE 1 @ +85C

2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6

TPC 7. LDO Variation over Supply

andTemperature

BLANKING FREQUENCY – Hz

5.0752

100

1000

10000

5.0750

5.0748

5.0746

5.0744

5.0742

5.0740

5.0738

5.0736

5.0734

TPC 2. LDO Output Voltage (Unloaded)

vs. Blanking Mode Frequency

OUTPUT CURRENT – A

100

4

6

8

10

90

80

70

60

2

TPC 5. +15 V/–10 V Efficiency vs. Output

Current in Blanking Mode, VCC = 3 V

VCC – V

2.6

3.6

2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4

300

250

200

150

100

50

0

ICC (BLANK)

ICC (SCAN)

3.5

TPC 8. Supply Current vs. Voltage

ILOAD – mA

5.104

2

4

6

8

5.102

5.100

5.098

5.096

5.094

5.092

5.090

0

3

5

7

1

TPC 3. LDO O/P Voltage vs. Load

Current in Scanning Mode, VCC = 3.3 V

OUTPUT CURRENT – A

100

40

60

80

100

90

80

70

60

20

0

50

40

TPC 6. +15 V/–10 V Efficiency vs. Output

Current in Scanning Mode, VCC = 3V

VOUT

5V OUTPUT RIPPLE

VCC RIPPLE

TPC 9. Output Ripple on LDO

(5 V Output)

REV. B

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