AP7348

Document number: DS42124 Rev. 3 - 2

4 of 15

www.diodes.com

August 2020

© Diodes Incorporated

AP7348

Electrical Characteristics (@TA = +25°C, VDD = VEN = VOUT_MAX Channel +1.0V, CIN = 4.7µF, COUT = 1.0µF, IOUT = 1.0mA, unless

otherwise specified.)

Parameter

Condition

Min

Typ

Max

Unit

Input Voltage

TA = -40°C to +85°C

1.7

—

5.25

V

Output Voltage Accuracy (Note 6)

VOUT(T) ≥ 2.0V, VDD = VOUT(T)+1V

TA = +25°C

VOUT(T)*

0.99

VOUT(T)

VOUT(T)*

1.01

V

VOUT(T) < 2.0V, VDD = VOUT(T)+1V

TA = +25°C

VOUT(T)-

20mV

VOUT(T)

VOUT(T)+

20mV

Line Regulation (dVOUT/dVDD/VOUT)

VDD = (VOUT – Nom +1.0V) to 5.25V, IOUT = 1.0mA

—

0.02

0.1

%/V

Load Regulation

VDD = VOUT - Nom +1.0V, IOUT = 1mA to 300mA

—

15

30

mV

Quiescent Current (Note 7)

IOUT = 0mA, EN1 = high, EN2 = low

—

80

140

µA

IOUT = 0mA, EN1 = EN2 = high

—

160

280

Standby Current (ISTANDBY)

VEN = 0V (Disabled)

—

0.01

1.0

µA

Each Channel Output Current (Note 5)

—

300

—

—

mA

Fold-Back Short Current (Note 8)

VOUT Short to Ground

—

55

—

mA

PSRR (Note 9)

VDD = (VOUT+1V) VDC + 0.2Vp-pAC,

VOUT ≥ 1.8V, IOUT = 30mA,

EN1 turns on and EN2 turns off, or

EN1 turns off and EN2 turns on

f = 1kHz

—

75

—

dB

Output Noise Voltage

(Note 9) (Note 10)

BW = 10Hz to 100kHz, IOUT = 30mA

—

60

—

µVrms

Dropout Voltage (Note 11)

IOUT = 300mA

1.1V ≤ VOUT < 1.5V

—

0.51

0.80

V

1.5V ≤ VOUT < 1.7V

—

0.38

0.53

1.7V ≤ VOUT < 2.0V

—

0.34

0.48

2.0V ≤ VOUT < 2.5V

—

0.28

0.42

2.5V ≤ VOUT < 2.8V

—

0.27

0.36

2.8

V ≤ VOUT < 3.0V

—

0.26

0.34

3.0

V ≤ VOUT < 3.6V

—

0.25

0.33

Output Voltage Temperature

Coefficient

IOUT = 30mA, TA = -40°C to +85°C

—

±30

—

ppm/°C

Thermal Shutdown Threshold

(TSHDN)

—

—

+155

—

°C

Thermal Shutdown Hysteresis (THYS)

—

—

+25

—

°C

EN Input Low Voltage

—

0

—

0.5

V

EN Input High Voltage

—

1.3

—

5.25

V

EN Input Leakage

VEN = 0, VDD = 5.0V or VEN = 5.0V, VDD = 0V

-1.0

—

+1.0

µA

On Resistance of N-Channel for Auto-

Discharge

VDD = 4.0V, VOUT = 0.2V, VEN = 0V (Disabled)

—

10

—

Ω

Thermal Resistance Junction to

Ambient (

JA)

X1-DFN1612-8 (Type B)

—

160

—

°C/W

Thermal Resistance Junction to Case

(

JC)

X1-DFN1612-8 (Type B)

—

26

—

Notes:

5. Even though AP7348 would provide each channel 300mA, user still need consider power dissipation can

’t over 600mW, or it will enable OTP function

and get abnormal output voltage.

6. Potential multiple grades based on following output voltage accuracy.

7. Quiescent current is defined here is the difference in current between the input and the output.

8. Short circuit current is measured with VOUT pulled to GND.

9. This specification is guaranteed by design.

10. To make sure lowest environment noise minimizes the influence on noise measurement.

11. Dropout voltage is the voltage difference between the input and the output at which the output voltage drops 2% below its nominal value.