ADM7150ACPZ-1.8-R7 datasheet(4/24 Pages) AD

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ADM7150

Data Sheet

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

EN INPUT

4.5 V ≤ VIN ≤ 16 V

EN Input Logic High

ENHIGH

3.2

EN Input Logic Low

ENLOW

0.8

EN Input Logic Hysteresis

ENHYS

VIN = 5 V

225

EN Input Leakage Current

IEN-LKG

VEN = VIN or GND

0.1

1.0

µA

Based on an end-point calculation using

1 mA and 800 mA loads. See Figure 7, Figure 16, and Figure 22 for typical load regulation performance for loads less than 1 mA.

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.

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

output voltages above 4.5 V.

Start-up time is defined as the time between the rising edge of VEN to VOUT, VREG, or VREF being at 90% of its nominal value.

The output voltage is turned off until the VREG UVLO rise threshold is crossed. The VREG output is turned off until the input voltage UVLO rise threshold is crossed.

INPUT AND OUTPUT CAPACITOR RECOMMENDED SPECIFICATIONS

Table 2.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

CAPACITANCE

TA = −40°C to +125°C

Minimum Input1

CIN

7.0

µF

Minimum Regulator1

CREG

7.0

µF

Minimum Output1

COUT

7.0

µF

Minimum Bypass

CBYP

0.1

µF

Minimum Reference

CREF

0.7

µF

CAPACITOR Equivalent Series Resistance (ESR)

RESR

TA = −40°C to +125°C

CREG, COUT, CIN, CREF

0.001

0.2

CBYP

0.001

2.0

The minimum input, regulator, and output capacitance must be greater than 7.0 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; however, Y5V and Z5U capacitors are not recommended for use with any LDO.

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