LP8340

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SNVS221D – FEBRUARY 2003 – REVISED APRIL 2013

LP8340I Electrical Characteristics

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 = −40°C to 125°C

Symbol

Parameter

Conditions

Min(1)

Typ(2)

Max(1)

Units

VIN

Input Voltage

LP8340-ADJ,1.8, 2.5

2.7

10

V

LP8340-3.3, 5.0

10

VOUT

Output Voltage

LP8340-ADJ, ADJ = OUT

IOUT = 10mA, VIN = 2.7V, TJ = 25°C

1.231

1.269

1.250

V

100

μA ≤IOUT≤ 800mA, 3.0V ≤VIN≤VOUT +4V

1.213

1.288

800mA <IOUT ≤1.0A, 3.2V ≤VIN ≤VOUT +4V

1.213

1.288

LP8340-1.8

IOUT = 10mA, VIN = 2.8V, TJ = 25°C

1.773

1.827

1.800

V

100

μA ≤IOUT ≤800mA, 3.2V ≤VIN≤6V

1.746

1.854

800mA <IOUT ≤1.0A, 3.4V ≤VIN ≤6V

1.746

1.854

LP8340-2.5

IOUT = 10mA, VIN = 3.8V, TJ = 25°C

2.463

2.500

2.538

V

100

μA ≤IOUT ≤1.0A, 3.8V ≤VIN ≤6.5V

2.425

2.575

LP8340-3.3

IOUT = 10mA, VIN = 4.3V TJ = 25°C

3.250

3.300

3.350

V

100

μA ≤IOUT ≤1.0A, 4.3V ≤VIN ≤7.5V

3.201

3.399

LP8340-5.0

IOUT = 10mA, VIN = 6V, TJ = 25°C

4.925

5.000

5.075

V

100

μA ≤IOUT ≤1.0A, 6V ≤VIN ≤9V

4.850

5.150

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

(1)

All limits are specified by testing or statistical analysis.

(2)

Typical Values represent the most likely parametric norm.

(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.

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