ADP150ACBZ-2.6-R7 datasheet(9/20 Pages) AD

9 / 20 page

ADP150

Rev. A | Page 9 of 20

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–90

–100

100

10k

100k

10M

FREQUENCY (Hz)

IOUT = 100µA

IOUT = 1mA

IOUT = 10mA

IOUT = 100mA

IOUT = 150mA

VIN = VOUT + 0.5V

VRIPPLE = 50mV

CIN = COUT = 1µF

Figure 17. Power Supply Rejection Ratio (PSRR) vs. Frequency,

VOUT = 3.3 V, VIN = 3.8 V

–10

–20

–30

–40

–50

–60

–70

–80

–90

–100

100

10k

100k

10M

FREQUENCY (Hz)

VOUT = 1.8V, IOUT = 100µA

VOUT = 2.8V, IOUT = 100µA

VOUT = 3.3V, IOUT = 100µA

VOUT = 1.8V, IOUT = 150mA

VOUT = 2.8V, IOUT = 150mA

VOUT = 3.3V, IOUT = 150mA

VIN = VOUT + 0.5V

VRIPPLE = 50mV

CIN = COUT = 1µF

Figure 18. Power Supply Rejection Ratio (PSRR) vs. Frequency

Various Output Voltages and Load Currents

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–20

–30

–40

–50

–60

–70

–80

–90

–100

100

10k

100k

10M

FREQUENCY (Hz)

VIN = 3.8V, IOUT = 1mA

VIN = 4.3V, IOUT = 1mA

VIN = 5.3V, IOUT = 1mA

VIN = 3.8V, IOUT = 150mA

VIN = 4.3V, IOUT = 150mA

VIN = 5.3V, IOUT = 150mA

VRIPPLE = 50mV

CIN = COUT = 1µF

Figure 19. Power Supply Rejection Ratio (PSRR) vs. Frequency with

Various Headroom Voltages (VIN − VOUT), VOUT = 3.3 V

0.001

0.01

0.1

100

IOUT (mA)

VOUT = 3.3V

VOUT = 2.8V

VOUT = 1.8V

Figure 20. Output RMS Noise vs. Load Current (IOUT) and

Output Voltage (VOUT), VIN = 5 V, COUT = 1 µF

0.01

0.1

100

10k

100k

FREQUENCY (Hz)

VOUT = 1.8V

VOUT = 2.8V

VOUT = 3.3V

Figure 21. Output Noise Spectrum, VIN = 5 V, ILOAD = 10 mA, COUT = 1 μF

CH1 100mA

CH2 50mV

M40µs

A CH1

112mA

117.560µs

IOUT

1mA TO 150mA LOAD STEP

VOUT

VIN = 3.7V

VOUT = 3.3V

Figure 22. Load Transient Response, COUT = 1 µF

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