Data Sheet

ADP2138/ADP2139

Rev. C | Page 3 of 20

SPECIFICATIONS

unless otherwise noted. All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC).

Table 1.

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

INPUT CHARACTERISTICS

Input Voltage Range

2.3

5.5

V

Undervoltage Lockout Threshold

2.3

V

2.00

2.15

2.25

V

OUTPUT CHARACTERISTICS

Output Voltage Accuracy

PWM mode

−2

+2

%

Line Regulation

0.25

%/V

Load Regulation

−0.95

%/A

PWM TO POWER SAVE MODE CURRENT THRESHOLD

100

mA

INPUT CURRENT CHARACTERISTICS

DC Operating Current

23

30

μA

Shutdown Current

0.2

1.0

μA

SW CHARACTERISTICS

SW On Resistance

PFET

155

240

mΩ

NFET

115

200

mΩ

Current Limit

PFET switch peak current limit

1100

1500

1650

mA

Discharge Switch (ADP2139)

100

Ω

ENABLE AND MODE CHARACTERISTICS

Input High Threshold

1.2

V

Input Low Threshold

0.4

V

Input Leakage Current

EN/MODE = 0 V (min), 3.6 V (max )

−1

0

+1

μA

OSCILLATOR FREQUENCY

2.6

3.0

3.4

MHz

START-UP TIME

250

μs

THERMAL CHARACTERISTICS

Thermal Shutdown Threshold

150

°C

Thermal Shutdown Hysteresis

20

°C

INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS

statistical quality control (SQC).

Table 2.

Parameter

Symbol

Min

Typ

Max

Unit

MINIMUM INPUT AND OUTPUT CAPACITANCE

4.7

µF

CAPACITOR ESR

0.001

1

Ω