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LR8 数据表(PDF) 11 Page - Supertex, Inc

部件名 LR8
功能描述  High Input Voltage Adjustable 3-Terminal Linear Regulator
PDF  11 Pages
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制造商  SUTEX [Supertex, Inc]
网页  http://www.supertex.com
标志 SUTEX - Supertex, Inc

LR8 数据表(HTML) 11 Page - Supertex, Inc

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11
LR8
1235 Bordeaux Drive, Sunnyvale, CA 94089
TEL: (408) 744-0100 • FAX: (408) 222-4895
www.supertex.com
11/30/01rev.1
Ct
II
V
OUT
BOOT
PWM
LIM
HYS
>
−
The minimum capacitance required for given boot-up time is
given by the following equation:
Remember that this equation is valid only when PWM current
exceeds the LR8’s current limit.
where
C
OUT
= Capacitor at LR8 output
t
BOOT =Time required for supply to bootstrap
I
PWM
= Current used by PWM controller
I
LIM
= LR8 current limit (10mA min)
V
HYS
= PWM controller UVL hysteresis



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