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LMZ34202RVQR データシート(PDF) 7 Page - Texas Instruments

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部品番号 LMZ34202RVQR
部品情報  SIMPLE SWITCHER 4.5-V to 42-V Input, 2-A Power Module
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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

LMZ34202RVQR データシート(HTML) 7 Page - Texas Instruments

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LMZ34202
www.ti.com
SNVSAJ2 – MARCH 2016
Product Folder Links: LMZ34202
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Copyright © 2016, Texas Instruments Incorporated
Electrical Characteristics (continued)
Over -40°C to +105°C free-air temperature, PVIN = 24 V, VOUT = 5 V, IOUT = IOUT max, ƒsw = 500 kHz,
CIN1 = 1 x 10-µF, 100-V 1210 ceramic, CIN2 = 1 x 100-µF 100-V electrolytic bulk, and COUT = 3 x 47-µF, 16-V 1210 ceramic
(unless otherwise noted).
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
(4)
The specified minimum ceramic input capacitance represents the standard capacitance value. The actual effective capacitance after
considering the effects of DC bias and temperature variation should be
≥ 4.7 µF.
(5)
The amount of required output capacitance varies depending on the output voltage (see Output Capacitor Selection). The minimum
required output capacitance must be comprised of ceramic capacitance. The amount of required ceramic capacitance represents the
standard capacitance value. Locate the capacitance close to the device. Adding additional ceramic or non-ceramic capacitance close to
the load improves the response of the regulator to load transients.
(6)
The maximum allowable output capacitance varies depending on the output voltage (see Output Capacitor Selection).
THERMAL SHUTDOWN
TSHUTDOWN
Thermal shutdown
Shutdown Temperature
160
°C
Hysteresis
10
°C
INPUT/OUTPUT CAPACITANCE
CIN
External input capacitance
ceramic
10(4)
µF
non-ceramic
100
µF
COUT
External output capacitance
Ceramic
64(5)
See(6)
µF
Non-ceramic
100
See(6)
µF
ceramic + non-ceramic
See(6)
µF
Equivalent series resistance (ESR)
20
m
Ω
6.6 Switching Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ƒSW
Switching frequency
RT and RTSEL pins open
410
500
590
kHz
ƒCLK
CLK Control
Synchronization frequency
200
1000
kHz
VCLK-H
CLK high level
2
5.5
V
VCLK-L
CLK low level
0.4
V
DCLK
CLK duty cycle
10%
50%
90%


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