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| 型号： | LMZ14201EVAL/NOPB |
| 厂商： | National Semiconductor |
| 文件页数： | 5/27页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR LMZ14201 |
| 产品培训模块： | SIMPLE SWITCHER Power Modules |
| 标准包装： | 1 |
| 系列： | SIMPLE SWITCHER® |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 3.3V |
| 电流 - 输出： | 1A |
| 输入电压： | 6 ~ 24 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 最高 1MHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | LMZ14201 |
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LMZ14201
www.ti.com
SNVS649F – JANUARY 2010 – REVISED OCTOBER 2013
Electrical Characteristics
Limits in standard type are for T J = 25°C only; limits in boldface type apply over the junction temperature (T J ) range of -40°C
to +125°C. Minimum and Maximum limits are ensured through test, design or statistical correlation. Typical values represent
the most likely parametric norm at T J = 25°C, and are provided for reference purposes only. Unless otherwise stated the
following conditions apply: V IN = 24V, Vout = 3.3V
Symbol
Parameter
Conditions
Min
(1)
Typ
(2)
Max
(1)
Units
SYSTEM PARAMETERS
Enable Control (3)
V EN
V EN-HYS
EN threshold trip point
EN threshold hysteresis
V EN rising
V EN falling
1.10
1.18
90
1.25
V
mV
Soft-Start
I SS
SS source current
V SS = 0V
5
8
11
μA
I SS-DIS
SS discharge current
-200
μA
Current Limit
I CL
Current limit threshold
d.c. average
1.4
1.95
3.0
A
ON/OFF Timer
t ON-MIN
t OFF
ON timer minimum pulse width
OFF timer pulse width
150
260
ns
ns
Regulation and Over-Voltage Comparator
V FB
In-regulation feedback voltage
V SS >+ 0.8V
.777
0.798
0.818
V
T J = -40°C to 125°C
I O = 1A
V SS >+ 0.8V
0.786
0.802
0.818
V
T J = 25°C
I O = 10 mA
V FB-OV
Feedback over-voltage
0.92
V
protection threshold
I FB
Feedback input bias current
5
nA
I Q
I SD
Non Switching Input Current
Shut Down Quiescent Current
V FB = 0.86V
V EN = 0V
1
25
mA
μ A
Thermal Characteristics
T SD
T SD-HYST
θ JA
Thermal Shutdown
Thermal shutdown hysteresis
Junction to Ambient (4)
Rising
Falling
4 layer JEDEC Printed Circuit Board,
165
15
19.3
°C
°C
°C/W
100 vias, No air flow
2 layer JEDEC Printed Circuit Board, No
air flow
21.5
°C/W
θ JC
Junction to Case
No air flow
1.9
°C/W
PERFORMANCE PARAMETERS
Δ V O
Output Voltage Ripple
8
mV
PP
Δ V O / Δ V IN
Δ V O /I OUT
η
Line Regulation
Load Regulation
Efficiency
V IN = 12V to 42V, I O = 1A
V IN = 24V
V IN = 24V V O = 3.3V I O = 1A
.01
1.5
92
%
mV/A
%
(1)
(2)
(3)
(4)
Min and Max limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation
using Statistical Quality Control (SQC) methods. Limits are used to calculate Average Outgoing Quality Level (AOQL).
Typical numbers are at 25°C and represent the most likely parametric norm.
EN 55022:2006, +A1:2007, FCC Part 15 Subpart B: 2007. See AN-2024 and layout for information on device under test.
θ JA measured on a 1.705” x 3.0” four layer board, with one ounce copper, thirty five thermal vias, no air flow, and 1W power dissipation.
Refer to PCB layout diagrams
Copyright ? 2010–2013, Texas Instruments Incorporated
Product Folder Links: LMZ14201
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LMZ14201EXT | 制造商:NSC 制造商全称:National Semiconductor 功能描述:1A SIMPLE SWITCHER? Power Module with 42V Maximum Input Voltage for Military and Rugged Applications |
| LMZ14201EXTEVAL/NOPB | 功能描述:电源管理IC开发工具 LMZ14201EXT EVAL BOARD RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| LMZ14201EXTTZ | 制造商:NSC 制造商全称:National Semiconductor 功能描述:1A SIMPLE SWITCHER? Power Module with 42V Maximum Input Voltage for Military and Rugged Applications |
| LMZ14201EXTTZ/NOPB | 功能描述:直流/直流开关转换器 1A SIMPLE SWITCHER POWER MOD, 42V MAX RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LMZ14201EXTTZE | 制造商:NSC 制造商全称:National Semiconductor 功能描述:1A SIMPLE SWITCHER? Power Module with 42V Maximum Input Voltage for Military and Rugged Applications |
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