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LM43601AQPWPTQ1 データシート(PDF) 7 Page - Texas Instruments

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部品番号 LM43601AQPWPTQ1
部品情報  3.5-V to 36-V, 1-A Synchronous Step-Down Voltage Converter
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI1 - Texas Instruments

LM43601AQPWPTQ1 データシート(HTML) 7 Page - Texas Instruments

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LM43601-Q1
www.ti.com
SNVSAA0B – JULY 2015 – REVISED NOVEMBER 2017
Product Folder Links: LM43601-Q1
Submit Documentation Feedback
Copyright © 2015–2017, Texas Instruments Incorporated
6.6 Timing Requirements
PARAMETER
MIN
TYP
MAX
UNIT
CURRENT LIMIT AND HICCUP
NOC
Hiccup wait cycles when LS current limit tripped
32
Cycles
TOC
Hiccup retry delay time
5.5
ms
SOFT START (SS/TRK PIN)
TSS
Internal soft-start time when SS pin open circuit
3.86
ms
POWER GOOD (PGOOD PIN)
TPGOOD-RISE Power-good flag rising transition deglitch delay
220
µs
TPGOOD-FALL Power-good flag falling transition deglitch delay
220
µs
(1)
Specified by design
6.7 Switching Characteristics
Over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SW (SW PIN)
TON-MIN
(1)
Minimum high side MOSFET ON-
time
125
165
ns
TOFF-MIN
(1)
Minimum high side MOSFET OFF-
time
200
250
ns
OSCILLATOR (SW PINS AND SYNC PIN)
FOSC-
DEFAULT
Oscillator default frequency
RT pin open circuit
445
500
570
kHz
FADJ
Minimum adjustable frequency
With 1% resistors at RT pin
200
kHz
Maximum adjustable frequency
2200
kHz
Frequency adjust accuracy
10%
VSYNC-HIGH Sync clock high level threshold
2
V
VSYNC-LOW Sync clock low level threshold
0.4
V
DSYNC-MAX Sync clock maximum duty cycle
90%
DSYNC-MIN
Sync clock minimum duty cycle
10%
TSYNC-MIN
Minimum sync clock ON- and OFF-
time
80
ns


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