LT3013BEFE(RevA) 데이터 시트보기 (PDF) - Linear Technology

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LT3013BEFE
(Rev.:RevA)

250mA, 4V to 80V Low Dropout Micropower Linear Regulator with PWRGD

Linear Technology 

LT3013B

ELECTRICAL CHARACTERISTICS

The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at TJ = 25°C.

PARAMETER

CONDITIONS

MIN TYP MAX

Dropout Voltage

VIN = VOUT(NOMINAL)

(Notes 4, 5)

GND Pin Current

VIN = 4.5V

(Notes 4, 6)

Output Voltage Noise

ADJ Pin Bias Current

ILOAD = 10mA

ILOAD = 10mA

ILOAD = 50mA

ILOAD = 50mA

ILOAD = 250mA

ILOAD = 250mA

ILOAD = 0mA

ILOAD = 100mA

ILOAD = 250mA

COUT = 10µF, ILOAD = 250mA, BW = 10Hz to 100kHz

(Note 7)

160 230

●

300

250 340

●

420

400 490

●

620

●

65

120

3

●

10

18

100

30

100

PWRGD Trip Point

% of Nominal Output Voltage, Output Rising

● 85

90

94

PWRGD Trip Point Hysteresis

% of Nominal Output Voltage

1.1

PWRGD Output Low Voltage

CT Pin Charging Current

CT Pin Voltage Differential

Ripple Rejection

Current Limit

Reverse Output Current (Note 8)

IPWRGD = 50µA

●

140 250

3.6

6

VCT(PWRGD High) – VCT(PWRGD Low)

1.6

VIN = 7V(Avg), VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz, ILOAD = 250mA

65

75

VIN = 7V, VOUT = 0V

VIN = 4.5V, ∆VOUT = –0.1V (Note 2)

400

● 270

VOUT = 1.24V, VIN < 1.24V (Note 2)

12

25

UNITS

mV

mV

mV

mV

mV

mV

µA

mA

mA

µVRMS

nA

%

%

mV

µA

V

dB

mA

mA

µA

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: The LT3013B is tested and specified for these conditions with the

ADJ pin connected to the OUT pin.

Note 3: Operating conditions are limited by maximum junction

temperature. The regulated output voltage specification will not apply for

all possible combinations of input voltage and output current. When

operating at maximum input voltage, the output current range must be

limited. When operating at maximum output current, the input voltage

range must be limited.

Note 4: To satisfy requirements for minimum input voltage, the LT3013B

is tested and specified for these conditions with an external resistor divider

(249k bottom, 549k top) for an output voltage of 4V. The external resistor

divider will add a 5µA DC load on the output.

Note 5: Dropout voltage is the minimum input to output voltage differential

needed to maintain regulation at a specified output current. In dropout, the

output voltage will be equal to (VIN – VDROPOUT).

Note 6: GND pin current is tested with VIN = 4.5V and a current source

load. This means the device is tested while operating close to its dropout

region. This is the worst-case GND pin current. The GND pin current will

decrease slightly at higher input voltages.

Note 7: ADJ pin bias current flows into the ADJ pin.

Note 8: Reverse output current is tested with the IN pin grounded and the

OUT pin forced to the rated output voltage. This current flows into the OUT

pin and out the GND pin.

Note 9: The LT3013BE is guaranteed to meet performance specifications

from 0°C to 125°C operating junction temperature. Specifications over

the –40°C to 125°C operating junction temperature range are assured by

design, characterization and correlation with statistical process controls.

Note 10: This IC includes overtemperature protection that is intended to

protect the device during momentary overload conditions. Junction

temperature will exceed 125°C when overtemperature protection is

active. Continuous operation above the specified maximum operating

junction temperature may impair device reliability.

3013bfa

3

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