參數資料
型號： LM20323AMHE
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： 6 A SWITCHING REGULATOR, 570 kHz SWITCHING FREQ-MAX, PDSO20
封裝： TSSOP-20
文件頁數： 15/20頁
文件大?。?/td> 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
相關PDF資料
PDF描述
LM20323AMH 6 A SWITCHING REGULATOR, 570 kHz SWITCHING FREQ-MAX, PDSO20
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相關代理商/技術參數
參數描述
LM20323AMHX 制造商:NSC 制造商全稱:National Semiconductor 功能描述:36V, 3A 500 kHz Synchronous Buck Regulator
LM20323EVAL 功能描述:電源管理IC開發(fā)工具 LM20323 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓: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/直流開關轉換器 36V,3A 500 KHZ SYNC BUCK REG RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格: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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