参数资料
型号: LMZ14201EVAL/NOPB
厂商: National Semiconductor
文件页数: 10/27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:
已用 IC / 零件: LMZ14201
LMZ14201
SNVS649F – JANUARY 2010 – REVISED OCTOBER 2013
www.ti.com
Typical Performance Characteristics (continued)
Unless otherwise specified, the following conditions apply: V IN = 24V; Cin = 10uF X7R Ceramic; C O = 100uF X7R Ceramic;
Tambient = 25 C for efficiency curves and waveforms.
Output Ripple
24V IN 3.3V O 1A, BW = 200 MHz
Transient Response
24V IN 3.3V O 0.5A to 1A Step
0.5 A/Div
Figure 27.
20 mV/Div
200 2 s/Div
Figure 28.
1.2
1
0.8
Thermal Derating V OUT = 3.3V
2.4
2.3
2.2
Current Limit 1.8V OUT @ 25°C
SHORT CIRCUIT
6V IN
0.6
12V IN
2.1
0.4
? JA = 19°C/W
24V IN
2.0
ONSET
0.2
1.9
VOUT = 3.3V
36V IN
25°C
0
50
60
70
80
90
100 110 120
1.8
0
5
10
15
20
25
AMBIENT TEMPERATURE (C)
INPUT VOLTAGE (V)
Figure 29.
Figure 30.
2.4
2.3
2.2
2.1
2.0
Current Limit 3.3V OUT @ 25°C
SHORT CIRCUIT
ONSET
2.5
2.4
2.3
2.2
2.1
Current Limit 3.3V OUT @ 85°C
SHORT CIRCUIT
ONSET
1.9
2.0
1.8
25°C
1.9
85°C
0
10
20
30
40
50
0
10
20
30
40
50
INPUT VOLTAGE (V)
Figure 31.
INPUT VOLTAGE (V)
Figure 32.
10
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Copyright ? 2010–2013, Texas Instruments Incorporated
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