LP8340

SNVS221D – FEBRUARY 2003 – REVISED APRIL 2013

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LP8340C Electrical Characteristics (continued)

Unless otherwise specified all limits ensured for VIN = VO+ 1V, CIN = COUT = 10μF, TJ = 25°C. Boldface limits apply over the

full operating temperature range of TJ = 0°C to 125°C

Symbol

Parameter

Conditions

Min(1)

Typ(2)

Max(1)

Units

ΔVO

Load Regulation

LP8340-ADJ, ADJ=OUT

IOUT = 1mA to 1.0A, VIN = 3.2V

6

25

LP8340-1.8

IOUT = 1mA to 1.0A, VIN = 3.4V

8

30

LP8340-2.5

mV

IOUT = 1mA to 1.0A, VIN = 3.5V

15

50

LP8340-3.3

IOUT = 1mA to 1.0A, VIN = 4.3V

20

75

LP8340-5.0

IOUT = 1mA to 1.0A, VIN = 6V

25

100

ΔVO

Line Regulation

VOUT + 0.5V ≤VIN ≤10V, IOUT = 25mA

(3)

4

15

mV

VIN − VO

Dropout Voltage(3)(4)

LP8340-1.8

IOUT = 800mA

680

1400

LP8340-2.5

IOUT = 800mA

550

1000

LP8340-2.5

IOUT = 1.0A

670

1300

LP8340-3.3

mV

LP8340-ADJ, VOUT = 3.3V, IOUT = 800mA

420

800

LP8340-3.3

LP8340-ADJ, IOUT = 1.0A

540

1000

LP8340-5.0

IOUT = 800mA

330

650

LP8340-5.0

IOUT = 1.0A

420

800

IQ

Quiescent Current

VIN ≤10V

19

50

μA

Minimum Load Current

VIN − VOUT ≤4V

100

μA

ILIMIT

Foldback Current Limit

VIN − VOUT >5V

450

mA

VIN − VOUT <4V

1600

Ripple Rejection Ratio

VIN (dc) = VOUT + 2V

48

55

dB

VIN (ac) = 1 VP-P @ 120Hz

TSD

Thermal Shutdown Temp.

160

°C

Thermal Shutdown Hyst.

10

ADJ Input Leakage Current

VADJ = 1.5V or 0V

±0.01

±100

nA

VOUT Leakage Current

LP8340-ADJ

ADJ = OUT, VOUT = 2V, VIN = 10V

10

LP8340-1.8, VOUT = 2.5V, VIN = 10V

10

μA

LP8340-2.5, VOUT = 3.5V, VIN = 10V

10

LP8340-3.3, VOUT = 4V, VIN = 10V

10

LP8340-5.0, VOUT = 6V, VIN = 10V

10

en

Output Noise

10Hz to 10kHz, RL = 1kΩ, COUT = 10μF

250

μVrms

(3)

Condition does not apply to input voltages below 2.7V since this is the minimum input operating voltage.

(4)

Dropout voltage is measured by reducing VIN until VO drops 100mV from its normal value.

4

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