6.6 Typical Characteristics (continued)

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)

Frequency - (Hz)

101

102

103

104

105

106

107

0

10

20

30

40

50

60

70

80

90

100

110

120

VIN = 5 V

V0 = 3.3 V

C0 = 10 uF

Cbyp = 0 nF

1 mA

150 mA

50 mA

VIN = 5 V, VOUT = 3.3 V, COUT = 10 μF, CBYP = 0 nF

Figure 6-19. Ripple Rejection vs Frequency for New Chip

0

10

20

30

40

50

60

70

80

90

100

10

100

1k

10k

100k

1M

Frequency − (Hz)

50 mA

150 mA

1 mA

VI = 3.7 V

VO = 3.3 V

Co = 10 mF

Cbyp = 0 nF

Figure 6-20. Ripple Rejection vs Frequency for Legacy Chip

Frequency - (Hz)

1x101

1x102

1x103

1x104

1x105

1x106

1x107

0

10

20

30

40

50

60

70

80

90

100

110

120

1 mA

150 mA

50 mA

VIN = 3.7 V, VOUT = 3.3 V, COUT = 10 μF, CBYP = 0 nF

Figure 6-21. Ripple Rejection vs Frequency for New Chip

0

10

20

30

40

50

60

70

80

90

100

10

100

1k

10k

100k

1M

Frequency − (Hz)

VI = 5 V

VO = 3.3 V

Co = 4.7 mF

Cbyp = 10 nF

50 mA

150 mA

1 mA

Figure 6-22. Ripple Rejection vs Frequency for Legacy Chip

Frequency - (Hz)

1x101

1x102

1x103

1x104

1x105

1x106

1x107

0

10

20

30

40

50

60

70

80

90

100

110

120

VIN = 5 V

V0 = 3.3 V

C0 = 4.7 uF

Cbyp = 10 nF

1 mA

150 mA

50 mA

Figure 6-23. Ripple Rejection vs Frequency for New Chip

0

10

20

30

40

50

60

70

80

90

100

10

100

1k

10k

100k

1M

Frequency − (Hz)

VI = 5 V

VO = 3.3 V

Co = 4.7 mF

Cbyp = 10 nF

10 mA

100 mA

1 mA

Figure 6-24. Ripple Rejection vs Frequency for Legacy Chip

LP2985, LP2985A

SLVS522R – JULY 2004 – REVISED JULY 2023

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