100

50

0

20

40

60

80 100 120

150

200

250

140 160 180 200

0

IOUT (mA)

TJ = 125 C

°

TJ = 25 C

°

TJ = −55 C

°

1s/div

VIN

VOUT

VOUT = 3 V

RL = 15 W

Time (ms)

0

30

20

10

40

50

70

60

80

90 100

IOUT = 200 mA

COUT = 2.2 F

m

CNR = 0.01 F

m

0

-20

3.8

dv

dt

0.4 V

ms

20

4.8

=

Time (ms)

0

0

150

100

50

200 250

350

300

400 450

20

0

−20

100

500

VIN = 3.8 V

COUT = 10 F

m

−40

200

300

di

dt

0.02A

ms

1mA

=

10

100

1 k

10 k

10

40

80

100 k

1 M

10 M

Frequency (Hz)

IOUT = 10 mA

50

0

VIN = 3.8 V

COUT = 10 F

m

CNR = 0.01 F

m

IOUT = 200 mA

20

30

60

70

90

100

3

Time (ms)

0

60

40

20

80 100

140

120

160 180 200

VIN = 3.8 V

VOUT = 2.8 V

IOUT = 200 mA

COUT = 2.2 F

m

TJ = 25 C

°

1

2

0

0

2

CNR = 0.0047 F

m

CNR = 0.01 F

m

4

CNR = 0.001 F

m

TPS730

www.ti.com

SBVS054J – NOVEMBER 2004 – REVISED APRIL 2015

Typical Characteristics (continued)

Over recommended operating temperature range TJ = –40°C to +125°C, VEN = VIN, VIN = VOUT(nom) + 1 V, IOUT = 1 mA, COUT =

10

μF, CNR = 0.01 μF, VOUT(nom) = 2.8 V (unless otherwise noted). Typical values are at TJ = 25°C.

Figure 7. TPS73028 Ripple Rejection vs Frequency

Figure 8. TPS73028 Output Voltage, Enable Voltage vs Time

(Start-Up)

Figure 10. TPS73028 Load Transient Response

Figure 9. TPS73028 Line Transient Response

Figure 12. Dropout Voltage vs Output Current

Figure 11. Power Up and Power Down

Copyright © 2004–2015, Texas Instruments Incorporated

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