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LMR23615QDRRRQ1 データシート(PDF) 6 Page - Texas Instruments

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部品番号 LMR23615QDRRRQ1
部品情報  SIMPLE SWITCHER 36-V, 1.5-A Synchronous Step-Down 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

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LMR23615-Q1
SNVSAS5 – MARCH 2018
www.ti.com
Product Folder Links: LMR23615-Q1
Submit Documentation Feedback
Copyright © 2018, Texas Instruments Incorporated
(1)
Specified by design.
6.6 Timing Characteristics
Over the recommended operating junction temperature range of –40°C to +125°C (unless otherwise noted)
MIN
NOM
MAX
UNIT
HICCUP MODE
NOC
(1)
Number of cycles that LS current limit is
tripped to enter hiccup mode
64
Cycles
TOC
Hiccup retry delay time
10
ms
SOFT START
TSS
Internal soft-start time. The time of internal
reference to increase from 0 V to 1 V
6
ms
(1)
Specified by design.
6.7 Switching Characteristics
Over the recommended operating junction temperature range of –40°C to +125°C (unless otherwise noted)
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNIT
SW (SW PIN)
TON_MIN
Minimum turnon time
60
90
ns
TOFF_MIN
(1)
Minimum turnoff time
100
ns
SYNC (EN/SYNC PIN)
fSW
Oscillator default frequency
RT pin open circuit
340
400
460
kHz
fADJ
Minimum adjustable frequency
RT = 198 kΩ with 1% accuracy
150
200
250
kHz
Maximum adjustable frequency
RT = 17.8 kΩ with 1% accuracy
1750
2150
2425
fSYNC
SYNC frequency range
200
2200
kHz
VSYNC
Amplitude of SYNC clock AC signal
(measured at SYNC pin)
2.8
5.5
V
TSYNC_MIN
Minimum sync clock ON and OFF time
100
ns


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