TPS7101QDR datasheet(23/40 Pages) TI

23 / 40 page

TPS7101Q, TPS7133Q, TPS7148Q, TPS7150Q

TPS7101Y, TPS7133Y, TPS7148Y, TPS7150Y

LOW-DROPOUT VOLTAGE REGULATORS

SLVS092G – NOVEMBER 1994 – REVISED JANUARY 2003

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

TYPICAL CHARACTERISTICS

Figure 34

0.1

100 150 200 250 300

TYPICAL REGIONS OF STABILITY

COMPENSATION SERIES RESISTANCE

OUTPUT CURRENT

350 400 450 500

100

IO – Output Current – mA

Region of Instability

VI = VO(nom) + 1 V

No Input Capacitance

CO = 4.7 µF

No Added Ceramic Capacitance

TA = 25°C

Figure 35

0.1

100 150 200 250 300 350 400 450 500

100

IO – Output Current – mA

Region of Instability

VI = VO(nom) + 1 V

No Input Capacitance

CO = 4.7 µF + 0.5 µF of

Ceramic Capacitance

TA = 25°C

TYPICAL REGIONS OF STABILITY

COMPENSATION SERIES RESISTANCE

OUTPUT CURRENT

Figure 36

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

100

Ceramic Capacitance –

µF

Region of Instability

TYPICAL REGIONS OF STABILITY

COMPENSATION SERIES RESISTANCE

ADDED CERAMIC CAPACITANCE

VI = VO(nom) + 1 V

No Input Capacitance

IO= 100 mA

CO = 4.7 µF

TA = 25°C

Figure 37

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

100

Ceramic Capacitance –

µF

Region of Instability

TYPICAL REGIONS OF STABILITY

COMPENSATION SERIES RESISTANCE

ADDED CERAMIC CAPACITANCE

VI = VO(nom) + 1 V

No Input Capacitance

IO= 500 mA

CO = 4.7 µF

TA = 25°C

TPS7101QDR Datasheet(PDF) 23 Page - Texas Instruments

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