LTC1751 datasheet(3/12 Pages) LINER

Part #	LTC1751

Description	Micropower, Regulated Charge Pump DC/DC Converters"\|\|" "94402

Download	12 Pages

Scroll/Zoom	100%

Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

Logo

3 / 12 page

3

LTC1751/LTC1751-3.3/LTC1751-5

The q denotes specifications which apply over the full specified

temperature range, otherwise specifications are at TA = 25°C. CFLY = 1µF, CIN = 10µF, COUT = 10µF unless otherwise noted.

ELECTRICAL CHARACTERISTICS

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

of a device may be impaired.

Note 2: Based on long term current density limitations.

Note 3: The LTC1751EMS8-X 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.

Note 4: The no load input current will be approximately ICC plus twice the

standing current in the resistive output divider.

Note 5: ROUT ≡ (2VIN – VOUT)/IOUT.

Note 6: See Figure 2.

TYPICAL PERFOR A CE CHARACTERISTICS

Output Voltage vs Load Current

LOAD CURRENT (mA)

0

3.20

3.25

3.30

3.35

3.40

25

50

75

100

1751 G01

125

150

TA = 25°C

CFLY = 1µF

VIN = 2V

VIN = 2.5V

INPUT VOLTAGE (V)

2.0

3.30

3.35

4.0

1751 G02

3.25

3.20

2.5

3.0

3.5

4.5

3.40

IOUT = 40mA

CFLY = 1µF

COUT = 10µF

TA = –40°C

TA = 85°C

TA = 25°C

INPUT VOLTAGE (V)

2.0

20

30

4.0

1751 G03

10

0

2.5

3.0

3.5

4.5

40

IOUT = 0mA

CFLY = 1µF

VSHDN = VIN

TA = 85°C

TA = 25°C

TA = –40°C

Output Voltage vs Input Voltage

No Load Supply Current

vs Input Voltage

(LTC1751-3.3)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

LTC1751-3.3/LTC1751-5

UVL

PGOOD Undervoltage Low Threshold

Relative to Regulated VOUT (Note 6)

q

–11

– 7

–3

%

UVH

PGOOD Undervoltage High Threshold

Relative to Regulated VOUT (Note 6)

q

–8

–4.5

–2

%

VOL

PGOOD Low Output Voltage

IPGOOD = – 500µA

q

0.4

V

IOH

PGOOD High Output Leakage

VPGOOD = 5.5V

q

1

µA

LTC1751/LTC1751-3.3/LTC1751-5

ISHDN

Shutdown Supply Current

VIN ≤ 3.6V, VOUT = 0V, VSHDN = 0V

q

0.01

2

µA

3.6V < VIN, VOUT = 0V, VSHDN = 0V

q

5

µA

VIH

SHDN Input Threshold (High)

q

1.5

V

VIL

SHDN Input Threshold (Low)

q

0.3

V

IIH

SHDN Input Current (High)

SHDN = VIN

q

–1

1

µA

IIL

SHDN Input Current (Low)

SHDN = 0V

q

–1

1

µA

tr

VOUT Rise Time

VIN = 3V, IOUT = 0mA, 10% to 90% (Note 6)

0.6ms/nF • CSS

sec

fOSC

Switching Frequency

Oscillator Free Running

800

kHz

Similar Part No. - LTC1751

Manufacturer	Part #	Datasheet	Description
Linear Technology	LTC1751	220Kb / 12P	Micropower, Regulated Charge Pump DC/DC Converters
	LTC1751-3.3	1Mb / 16P	Wide VIN Range, Low Noise, 250mA Buck-Boost Charge Pump
	LTC1751-3.3	220Kb / 12P	Micropower, Regulated Charge Pump DC/DC Converters
	LTC1751-3.3	220Kb / 12P	Micropower, Regulated Charge Pump DC/DC Converters
	LTC1751-5	1Mb / 16P	Wide VIN Range, Low Noise, 250mA Buck-Boost Charge Pump

More results

LTC1751 Datasheet(PDF) 3 Page - Linear Technology

LTC1751 Datasheet(HTML) 3 Page - Linear Technology

Similar Part No. - LTC1751

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12

Datasheet Download

Link URL