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LMZ12002 bảng dữ liệu(PDF) 5 Page - Texas Instruments

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Giải thích chi tiết về linh kiện  2A SIMPLE SWITCHER Power Module With 20-V Maximum Input Voltage
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LMZ12002 bảng dữ liệu(HTML) 5 Page - Texas Instruments

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LMZ12002
www.ti.com
SNVS650H – JANUARY 2010 – REVISED AUGUST 2015
Electrical Characteristics (continued)
Limits are for TJ = 25°C unless otherwise specified. Minimum and Maximum limits are specified through test, design or
statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference
purposes only. Unless otherwise stated the following conditions apply: VIN = 12 V, VOUT = 1.8 V
(1).
PARAMETER
TEST CONDITIONS
MIN(2)
TYP(3)
MAX(2)
UNIT
REGULATION AND OVERVOLTAGE COMPARATOR
0.795
VSS >+ 0.8 V
TJ = -40°C to 125°C
V
over the junction temperature
0.775
0.815
IO = 2 A
In-regulation feedback
(TJ) range of -40°C to +125°C
VFB
voltage
VSS >+ 0.8 V
TJ = 25°C
0.784
0.8
0.816
IO = 10 mA
Feedback overvoltage
VFB-OV
0.92
V
protection threshold
Feedback input bias
IFB
5
nA
current
Non-switching input
IQ
VFB= 0.86 V
1
mA
current
Shutdown quiescent
ISD
VEN= 0 V
25
μA
current
THERMAL CHARACTERISTICS
TSD
Thermal shutdown
Rising
165
°C
Thermal shutdown
TSD-HYST
Falling
15
°C
hysteresis
PERFORMANCE PARAMETERS
ΔVO
Output voltage ripple
8
mVPP
ΔVO/ΔVIN
Line regulation
VIN = 8 V to 20 V, IO= 2 A
0.01%
ΔVO/ΔVIN
Load regulation
VIN = 12 V
1.5
mV/A
VIN = 12 V, VO = 1.8 V, IO = 1 A
87%
η
Efficiency
VIN = 12 V, VO = 1.8 V, IO = 2 A
77%
Copyright © 2010–2015, Texas Instruments Incorporated
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