LP3987 datasheet(5/21 Pages) TI1

5 / 21 page

LP3987

www.ti.com

SNVS164G – OCTOBER 2001 – REVISED MAY 2013

Electrical Characteristics (continued)

Unless otherwise specified: VEN = 1.8V, MODE = 1.8V, VIN = VOUT(nom) + 0.5V, CIN = 1 µF, IOUT = 1mA, COUT = 1 µF.

Typical values and limits appearing in standard typeface are for TJ = 25°C. Limits appearing in boldface type apply over the

entire junction temperature range for operation,

−40°C to +125°C.

(1) (2)

Limit

Parameter

Test Conditions

Typ

Unit

Min

Max

VMODE_L

Logic Low Input Threshold

VIN = 3.05 to 6V

0.5

VMODE_H

Logic High Input Threshold

VIN = 3.05 to 6V

1.2

Maximum Input Current at

VMODE = 0 and VIN = 6.0V

IMODE

µA

VMODE

0.015

Timing Characteristics

TON

Turn on Time (On Mode)(5) (9)

MODE = 1.8V, COUT = 4.7µF

170

250

µs

Turn on Time (Sleep

MODE = 0V, COUT = 4.7µF

TSLEEP

Mode)(5)(10)

0.5

Sleep to On Mode Settle

COUT = 4.7µF, Enable = 1.8V

300

TMODE

µs

Time(5)(11)

200

(9)

TON is measured from rising edge of Enable with MODE = 1.8V to when VOUT reaches 95% of final value.

(10) TSLEEP is measured from rising edge of Enable with MODE = 0V to when VOUT reaches 95% of final value.

(11) TMODE is measured from rising edge of MODE with ENABLE = 1.8V to time before full current capability.

Figure 3.

Submit Documentation Feedback

Product Folder Links: LP3987

LP3987 Datasheet(PDF) 5 Page - Texas Instruments

LP3987 Datasheet(HTML) 5 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

Datasheet Descarga

Enlace URL