TPS7A7100RGTR datasheet(10/29 Pages) TI1

No. de pieza	TPS7A7100RGTR

Descripción Electrónicos	1-A, Fast-Transient, Low-Dropout Voltage Regulator

Download	29 Pages

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Fabricante Electrónico	TI1 [Texas Instruments]

Página de inicio	http://www.ti.com

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10 / 29 page

0.01

0.1

1

10

100

1k

10k

100k

Frequency (Hz)

VOUT(TARGET) = 0.9 V

VOUT(TARGET) = 1.2 V

VOUT(TARGET) = 3.3 V

VIN = VOUT(TARGET) + 0.3 V

IOUT = 1 A

100 Hz to 100 kHz RMS Noise

0.9 V: 36.26 µVRMS

1.2 V: 39.57 µVRMS

3.3 V: 84.67 µVRMS

G060

0.01

0.1

1

10

100

1k

10k

100k

Frequency (Hz)

CSS = 100nF, COUT = 100µF

CSS = 100nF, COUT = 10µF

CSS = 10nF, COUT = 100µF

CSS = 10nF, COUT = 10µF

CSS = 1nF,

COUT = 100µF

CSS = 1nF,

COUT = 10µF

VIN = 1.8 V,IOUT = 1 A

VOUT(TARGET) = 1.5 V

200mV, 800mV pins to GND

50mV, 100mV, 400mV, 1.6V pins open

G063

0

10

20

30

40

50

60

70

80

90

100

10

100

1k

10k

100k

1M

10M

Frequency (Hz)

VIN=3.6V, IOUT=100mA

VIN=3.6V, IOUT=1A

VIN=3.8V, IOUT=100mA

VIN=3.8V, IOUT=1A

VOUT(TARGET) = 3.3 V

400mV, 800mV, 1.6V pins to GND

50mV, 100mV, 200mV pins open

G070

TPS7A7100

SBVS189C – MARCH 2012 – REVISED MAY 2012

www.ti.com

TYPICAL CHARACTERISTICS (continued)

At TJ = +25°C, VIN = VOUT(TARGET) + 0.3 V, IOUT = 25 mA, V(EN) = VIN, CIN = 10 μF, COUT = 10 μF, C(SS) = 10 nF, and the PG pin

pulled up to VIN with 100-kΩ pull-up resistor, unless otherwise noted.

NOISE SPECTRAL DENSITY BY OUTPUT VOLTAGE

NOISE SPECTRAL DENSITY BY EXTERNAL CAPACITORS

Figure 20.

Figure 21.

POWER-SUPPLY RIPPLE REJECTION

vs FREQUENCY

Figure 22.

10

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