TPS76515, TPS76518, TPS76525, TPS76527

TPS76528, TPS76530, TPS76533, TPS76550, TPS76501

ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS

SLVS236 – AUGUST 1999

12

POST OFFICE BOX 655303

TYPICAL CHARACTERISTICS

Figure 21

0.01

0.10

1.00

10.00

100.00

0

25

50

75

100

125

150

IO – Output Current – mA

TYPICAL REGION OF STABILITY

vs

OUTPUT CURRENT

VI = 4.3 V

CO = 4.7 µF

VO = 3.3 V

TA = 25°C

Minimum ESR

Maximum ESR

Region of Stability

102

101

100

10–1

10–2

Region of Instability

Region of Instability

Figure 22

0.01

0.10

1.00

10.00

100.00

0

25

50

75

100

125

150

IO – Output Current – mA

TYPICAL REGION OF STABILITY

vs

OUTPUT CURRENT

VI = 4.3 V

CO = 4.7 µF

VO = 3.3 V

TA = 125°C

Minimum ESR

Maximum ESR

Region of Stability

Region of Instability

102

101

100

10–2

10–1

Region of Instability

Figure 23

0.01

0.10

1.00

10.00

100.00

0

25

50

75

100

125

150

IO – Output Current – mA

TYPICAL REGION OF STABILITY

vs

OUTPUT CURRENT

VI = 4.3 V

CO = 10 µF

VO = 3.3 V

TA = 25°C

Minimum ESR

Maximum ESR

Region of Stability

Region of Instability

102

101

100

10–2

10–1

Region of Instability

Figure 24

100

10–2

0

25

50

75

100

125

150

IO – Output Current – mA

TYPICAL REGION OF STABILITY

vs

OUTPUT CURRENT

VI = 4.3 V

CO = 10 µF

VO = 3.3 V

TA = 125°C

Minimum ESR

Maximum ESR

Region of Stability

Region of Instability

101

100

10–1

Region of Instability

10–2

102

† Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any series resistance added

externally, and PWB trace resistance to CO.