ADM7160ACPZN2.5-R2 datasheet(4/24 Pages) AD

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ADM7160

Data Sheet

Rev. 0 | Page 4 of 24

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

POWER SUPPLY REJECTION RATIO

PSRR

ILOAD = 100 mA

VIN = VOUT + 0.5 V

100 kHz, VIN = 3.8 V, VOUT = 3.3 V

500 kHz, VIN = 3.8 V, VOUT = 3.3 V

1 MHz, VIN = 3.8 V, VOUT = 3.3 V

100 kHz, VIN = 3.0 V, VOUT = 2.5 V

500 kHz, VIN = 3.0 V, VOUT = 2.5 V

1 MHz, VIN = 3.0 V, VOUT = 2.5 V

VIN = VOUT + 1 V

100 kHz, VIN = 4.3 V, VOUT = 3.3 V

500 kHz, VIN = 4.3 V, VOUT = 3.3 V

1 MHz, VIN = 4.3 V, VOUT = 3.3 V

100 kHz, VIN = 3.5 V, VOUT = 2.5 V

500 kHz, VIN = 3.5 V, VOUT = 2.5 V

1 MHz, VIN = 3.5 V, VOUT = 2.5 V

Dropout voltage is defined as the input-to-output voltage differential when the input voltage is set to the nominal output voltage. This specification applies only to

output voltages greater than 2.2 V.

Start-up time is defined as the time from the rising edge of EN to when VOUT is at 90% of its nominal value.

Current-limit threshold is defined as the current at which the output voltage falls to 90% of the specified typical value. For example, the current limit for a 3.0 V output

voltage is defined as the current that causes the output voltage to fall to 90% of 3.0 V (that is, 2.7 V).

INPUT AND OUTPUT CAPACITORS, RECOMMENDED SPECIFICATIONS

TA = −40°C to +125°C.

Table 2.

Parameter

Symbol

Min

Typ

Max

Unit

Minimum Input and Output Capacitance1

CMIN

0.7

µF

Capacitor ESR

RESR

0.001

0.2

The minimum input and output capacitance should be greater than 0.7 μF over the full range of operating conditions. The full range of operating conditions in the

application must be considered during device selection to ensure that the minimum capacitance specification is met. X7R and X5R type capacitors are recommended;

Y5V and Z5U capacitors are not recommended for use with any LDO regulator. For more information, see the Input and Output Capacitor Properties section.

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