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器件3D模型￥ 8.462
LM46002QPWPRQ1 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
开关控制器
封装:
HTSSOP-16
描述:
开关稳压器 Automotive Qualified 3.5V to 60V, 2A Synchronous Step-Down Voltage Converter 16-HTSSOP -40 to 125
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P3Hot
典型应用电路图在P15
原理图在P1P13
封装尺寸在P21P22P23P24P26P27P28
标记信息在P21P22P23P24P25
封装信息在P20P21P22P23P24P25P26P27P28
技术参数、封装参数在P4P18
应用领域在P1
电气规格在P4P5P6P7P8P18
导航目录
LM46002QPWPRQ1数据手册
Page:
of 36 Go
若手册格式错乱，请下载阅览PDF原文件
LM2940-N
,
LM2940C
www.ti.com
SNVS769J –MARCH 2000–REVISED DECEMBER 2014
6.4 Thermal Information
LM2940-N, LM2940C LM2940-N
TO-220 DDPAK/TO-263 SOT-223 WSON
THERMAL METRIC
(1)
UNIT
(NDE) (KTT) (DCY) (NGN)
3 PINS 3 PINS 4 PINS 8 PINS
R
θJA
Junction-to-ambient thermal resistance
(2)
23.3 40.9 59.3 40.5
R
θJC(top)
Junction-to-case (top) thermal resistance 16.1 43.5 38.9 26.2
R
θJB
Junction-to-board thermal resistance 4.8 23.5 8.1 17.0
°C/W
ψ
JT
Junction-to-top characterization parameter 2.7 10.3 1.7 0.2
ψ
JB
Junction-to-board characterization parameter 4.8 22.5 8.0 17.2
R
θJC(bot)
Junction-to-case (bottom) thermal resistance 1.1 0.8 n/a 3.2
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
(2) Thermal information for the TO-220 package is for a package vertically mounted with a heat sink in the middle of a PCB which is
compliant to the JEDEC HIGH-K 2s2p (JESD51-7). The heatsink-to-ambient thermal resistance, R
ƟSA
, is 21.7°C/W. See Heatsinking
TO-220 Package Parts for more information.
6.5 Electrical Characteristics (5 V and 8 V)
Unless otherwise specified: V
IN
= V
OUT
+ 5 V, I
OUT
= 1 A and C
OUT
= 22 µF. MIN (minimum) and MAX (maximum) limits apply
over the recommended operating temperature range, unless otherwise noted; typical limits apply for T
A
= T
J
= 25°C.
5 V 8 V
PARAMETER TEST CONDITIONS UNIT
MIN TYP MAX MIN TYP MAX
Input voltage 5 mA ≤ I
OUT
≤ 1 A 6.25 26 9.4 26
5 mA ≤ I
OUT
≤ 1A 4.75 5 5.25 7.6 8 8.4 V
Output voltage
5 mA ≤ I
OUT
≤ 1A, T
J
= 25°C 4.85 5 5.15 7.76 8 8.24
V
OUT
+ 2 V ≤ V
IN
≤ 26 V, I
OUT
= 5 mA
Line regulation 20 50 20 80 mV
T
J
= 25°C
50 mA ≤ I
OUT
≤ 1 A LM2940-N 35 80 55 130
Load regulation LM2940-N 35 50 55 80 mV
50 mA ≤ I
OUT
≤ 1 A
T
J
= 25°C
LM2940C 35 50 55 80
Output 100 mADC, 20 mArms, ƒ
OUT
= 120 Hz
35 55 mΩ
impedance
V
OUT
+ 2 V ≤ V
IN
≤ 26 V, LM2940-N
10 20 10 20
I
OUT
= 5 mA
V
OUT
+ 2 V ≤ V
IN
≤ 26 V, LM2940-N 10 15 10 15
I
OUT
= 5 mA
Quiescent current LM2940C 10 15 mA
T
J
= 25°C
V
IN
= V
OUT
+ 5 V, I
OUT
= 1 A 30 60 30 60
V
IN
= V
OUT
+ 5 V, I
OUT
= 1 A
30 45 30 45
T
J
= 25°C
Output noise
10 Hz to 100 kHz, I
OUT
= 5 mA 150 240 µVrms
voltage
ƒ
OUT
= 120 Hz, 1 V
rms
, I
OUT
= LM2940-N 54 72 48 66
100 mA
Ripple rejection dB
ƒ
OUT
= 120 Hz, 1 V
rms
, I
OUT
= LM2940-N 60 72 54 66
100 mA
LM2940C 60 72 54 66
T
J
= 25°C
Long-term mV/1000
20 32
stability Hr
I
OUT
= 1A 0.5 1 0.5 1
V
I
OUT
= 1A, T
J
= 25°C 0.5 0.8 0.5 0.8
Dropout voltage
I
OUT
= 100 mA 110 200 110 200
mV
I
OUT
= 100 mA, T
J
= 25°C 110 150 110 150
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Product Folder Links: LM2940-N LM2940C
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