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参数资料
| 型号： | LM20323AMHE |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 6 A SWITCHING REGULATOR, 570 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封装： | TSSOP-20 |
| 文件页数： | 15/20页 |
| 文件大小： | 492K |
| 代理商： | LM20323AMHE |
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Current Limit
I
LIM
Cycle By Cycle Positive Current Limit
4.3
5.2
6.0
A
I
LIMNEG
Cycle By Cycle Negative Current Limit
2.8
A
T
ILIM
Cycle By Cycle Current Limit Delay
150
ns
Enable
V
IH_EN
EN Pin Rising Threshold
1.2
1.25
1.3
V
EN(HYS)
EN Pin Hysteresis
50
mV
I
EN
EN Source Current
V
EN = 0V, VVIN = 12V
2
A
Thermal Shutdown
T
SD
Thermal Shutdown
170
°C
T
SD(HYS)
Thermal Shutdown Hysteresis
20
°C
Thermal Resistance
θ
JC
Junction to Case
5.6
°C/W
θ
JA
Junction to Ambient (Note 3)
0 LFM airflow
27
°C/W
Note 1:
Absolute Maximum Ratings indicate limits beyond witch damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2:
The human body model is a 100 pF capacitor discharged through a 1.5 k
resistor to each pin.
Note 3:
Measured on a 4 layer 2" x 2" PCB with 1 oz. copper weight inner layers and 2 oz. outer layers.
Typical Performance Characteristics Unless otherwise specified: V
VIN = 12V, VOUT = 3.3V, L= 5.6 H,
C
SS = 100nF, TA = 25°C for efficiency curves, loop gain plots and waveforms, and TJ = 25°C for all others.
Efficiency vs. Load Current
30077204
Error Amplifier Gain
30077205
www.national.com
4
LM20323A
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM20323AMHX | 制造商:NSC 制造商全称:National Semiconductor 功能描述:36V, 3A 500 kHz Synchronous Buck Regulator |
| LM20323EVAL | 功能描述:电源管理IC开发工具 LM20323 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 |
| LM20323MH | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Down 4.5V to 36V 20-Pin TSSOP EP Rail 制造商:Texas Instruments 功能描述:BUCK REG, 3A, 4V/36V, POWERWISE, 20TSSOP 制造商:Texas Instruments 功能描述:IC, DC-DC CONV; Primary Input Voltage:36V; No. of Outputs:1; Output Voltage:32V; Output Current:3A; No. of Pins:20; Operating Temperature Min:-40C; Operating Temperature Max:125C; Operating Temperature Range:-40C to +125C ;RoHS Compliant: Yes |
| LM20323MH/NOPB | 功能描述:直流/直流开关转换器 36V,3A 500 KHZ SYNC BUCK REG 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 |
| LM20323MHE | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Down 4.5V to 36V 20-Pin TSSOP EP T/R |
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