ADM7170

Data Sheet

Rev. C | Page 4 of 23

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

EN INPUT STANDBY

EN Input Logic High

1.1

V

EN Input Logic Low

0.4

V

EN Input Logic Hysteresis

80

mV

EN INPUT PRECISION

EN Input Logic High

1.11

1.2

1.27

V

EN Input Logic Low

1.01

1.1

1.16

V

EN Input Logic Hysteresis

100

mV

EN Input Leakage Current

0.1

1.0

µA

EN Input Delay Time

130

μs

1

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

voltages greater than 2.3 V.

2

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

3

Current-limit threshold is defined as the current at which the output voltage drops to 90% of the specified typical value. For example, the current limit for a 5.0 V

output voltage is defined as the current that causes the output voltage to drop to 90% of 5.0 V, or 4.5 V.

INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS

Table 3.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

3.3

µF

CAPACITOR ESR

0.001

0.05

Ω

1

Ensure that the minimum input and output capacitance is greater than 3.3 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.