LTC3450EUD データシートの表示（PDF） - Linear Technology

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LTC3450EUD

Triple Output Power Supply for Small TFT-LCD Displays

Linear Technology 

LTC3450

ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V, VOUT = 5.2V unless otherwise noted.

PARAMETER

V3X Output Voltage

V2X Efficiency

V3X Efficiency

Output Impedance V2X, V3X

VNEG Output Voltage

VNEG Efficiency

Output Impedance VNEG

Switching Frequency Charge Pumps

Switching Frequency Charge Pumps

VNEG to V3X Delay

Logic Inputs

SHDN Pin Threshold

MODE Pin Threshold

CONDITIONS

Load on V3X = 100µA

Load on V2X = 100µA, (Note 2)

Load on V3X = 100µA, (Note 2)

Flying Capacitors = 0.1µF

Load on VNEG = 100µA, VINV = V2X

Load on VNEG = 100µA (Note 2)

Flying Capacitor = 0.1µF

MODE = VIN

MODE = GND

(Note 3)

MIN

q 14.688

q –10.608

3

TYP

15.2

90

80

1

– 10.1

80

1

62.5

3.75

4

MAX

15.912

– 9.792

10

UNITS

V

%

%

kΩ

V

%

kΩ

kHz

kHz

ms

q 0.4

0.77

1.2

V

1.6

V

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: Specification is guaranteed by design and not 100% tested in

production.

Note 3: Measured from point at which VNEG crosses –5V to point at which

C2– starts switching.

Note 4: The LTC3450E is guaranteed to meet performance specifications

from 0°C to 70°C. Specifications over the – 40°C to 85°C operating

temperature range are assured by design, characterization and correlation

with statistical process controls.

3450f

3

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