Data Sheet

ADP151

SPECIFICATIONS

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Rev. J | 4 of 23

Table 1.

Parameter

Symbol

Test Conditions/Conditions

Min

Typ

Max

Unit

W grade, TJ = −40°C to +125°C

205

300

400

mA

UNDERVOLTAGE LOCKOUT

TJ = −40°C to +125°C

Input Voltage Rising

UVLORISE

1.96

V

W grade

1.86

V

Input Voltage Falling

UVLOFALL

1.28

V

Hysteresis

UVLOHYS

120

mV

THERMAL SHUTDOWN

Thermal Shutdown Threshold

TSSD

TJ rising

150

°C

Thermal Shutdown Hysteresis

TSSD-HYS

15

°C

EN INPUT

EN Input Logic High

VIH

2.2 V ≤ VIN ≤ 5.5 V

1.2

V

EN Input Logic Low

VIL

2.2 V ≤ VIN ≤ 5.5 V

0.4

V

EN Input Pull-Down Resistance

REN

VIN = EN voltage (VEN) = 5.5 V

2.6

MΩ

OUTPUT NOISE

OUTNOISE

10 Hz to 100 kHz, VIN = 5 V, VOUT = 3.3 V

9

µV rms

10 Hz to 100 kHz, VIN = 5 V, VOUT = 2.5 V

9

µV rms

10 Hz to 100 kHz, VIN = 5 V, VOUT = 1.1 V

9

µV rms

POWER SUPPLY REJECTION RATIO

PSRR

VIN = VOUT + 0.5 V

10 kHz, VIN = 3.8 V, VOUT = 3.3 V, IOUT = 10 mA

70

dB

100 kHz, VIN = 3.8 V, VOUT = 3.3 V, IOUT = 10 mA

55

dB

VIN = VOUT + 1 V

10 kHz, VIN = 4.3 V, VOUT = 3.3 V, IOUT = 10 mA

70

dB

100 kHz, VIN = 4.3 V, VOUT = 3.3 V, IOUT = 10 mA

55

dB

10 kHz, VIN = 2.2 V, VOUT = 1.1 V, IOUT = 10 mA

70

dB

100 kHz, VIN = 2.2 V, VOUT = 1.1 V, IOUT = 10 mA

55

dB

1 Based on an end-point calculation using 0.1 mA and 200 mA loads. See Figure 8 for typical load regulation performance for loads less than 1 mA.

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

above 2.2 V.

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

4 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 3.0 V output

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

INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS

Table 2.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

Minimum Input and Output Capacitance1

CMIN

TA = −40°C to +125°C

0.7

µF

Capacitor ESR

RESR

TA = −40°C to +125°C

0.001

0.2

Ω

1 The minimum input and output capacitance must 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, and Y5V and

Z5U capacitors are not recommended for use with any low dropout (LDO) regulator.