TC1267_13 datasheet(3/14 Pages) MICROCHIP

номер детали	TC1267

подробное описание детали	400mA PCI LDO

PDF	14 Pages

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производитель	MICROCHIP [Microchip Technology]

домашняя страница	http://www.microchip.com

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 2001-2012 Microchip Technology Inc.

DS21378C-page 3

TC1267

TC1267 ELECTRICAL SPECIFICATIONS

(CONTINUED)

Electrical Characteristics: TA = +25°C, VIN = 5V, VAUX = 3.3V, IOUT = 0.1mA, COUT = 4.7F, unless otherwise noted. Boldface

type specifications apply over full operating range.

Symbol

Parameter

Min

Typ

Max

Units

Test Conditions

IDR(PK)

Peak Drive Current

—

Sinking: VIN = 3.75V, VDR = 1V;

Sourcing: VIN = 4.3V, VIN – VOR = 2V

tDH

Drive High Delay

(Notes 1, 5)

—

sec

CDR = 1.2nF, VIN ramping up,

measured from VIN = VTH(HI) to VDR = 2V

tDL

Drive Low Delay

(Notes 1, 5)

—

0.6

—

1.5

3.0

sec

CDR = 1.2nF, VIN ramping down,

measured from VIN = VTH(LO) to VDR = 2V

Note

Ensured by design.

See 5V Detect Thresholds, Figure 4-1.

Recommended source impedance for 5V supply:

0.25. This will ensure that I

OUT x RSOURCE < VHYST, thus avoiding DR toggling during

5V detect threshold transitions.

In Application Circuit, Figure 3-1.

See Timing Diagram, Figure 4-2.

Ground Current is independent of ILOAD.

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