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LMZ31506H データシート(PDF) 5 Page - Texas Instruments

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部品番号 LMZ31506H
部品情報  6A SIMPLE SWITCHER Power Module with 4.5V-14.5V Input in QFN Package
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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

LMZ31506H データシート(HTML) 5 Page - Texas Instruments

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background image
PWRGD
VIN
PVIN
PGND
PH
VOUT
RT/CLK
AGND
VADJ
INH/UVLO
STSEL
SS/TR
VSENSE+
LMZ31506H
PWRGD
Logic
+
+
VREF
Comp
Power
Stage
and
Control
Logic
Thermal Shutdown
Shutdown
Logic
OCP
VIN
UVLO
OSC w/PLL
LMZ31506H
www.ti.com
SNVS996 – JULY 2013
ELECTRICAL CHARACTERISTICS (continued)
over -40°C to 85°C free-air temperature, PVIN = VIN = 12 V, VOUT = 1.8 V, IOUT = 6A,
CIN1 = 2x 22 µF ceramic, CIN2 = 68 µF poly-tantalum, COUT1 = 4x 47 µF ceramic (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Ceramic
44 (4)
CIN
External input capacitance
µF
Non-ceramic
68(4)
Ceramic
47 (5)
200
1500
µF
COUT
External output capacitance
Non-ceramic
220(5)
5000
Equivalent series resistance (ESR)
35
m
(4)
A minimum of 100µF of polymer tantalum and/or ceramic external capacitance is required across the input (VIN and PVIN connected)
for proper operation. Locate the capacitor close to the device. See Table 5 for more details. When operating with split VIN and PVIN
rails, place 4.7µF of ceramic capacitance directly at the VIN pin.
(5)
The amount of required output capacitance varies depending on the output voltage (see Table 3 ). The amount of required capacitance
must include at least 1x 47µF ceramic capacitor. Locate the capacitance close to the device. Adding additional capacitance close to the
load improves the response of the regulator to load transients. See Table 3 and Table 5 more details.
DEVICE INFORMATION
FUNCTIONAL BLOCK DIAGRAM
Copyright © 2013, Texas Instruments Incorporated
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