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參數(shù)資料
| 型號： | LM20133 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 3A, PowerWise㈢ Synchronous Buck Regulator with Input Synchronization |
| 中文描述： | 3A條的PowerWise㈢同步降壓穩(wěn)壓器的輸入同步 |
| 文件頁數(shù)： | 4/22頁 |
| 文件大?。?/td> | 618K |
| 代理商： | LM20133 |
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Enable
V
IH_EN
V
EN_HYS
EN Pin Turn on Threshold
V
EN
Rising
1.08
1.18
1.28
V
EN Pin Hysteresis
66
mV
Thermal Shutdown
T
SD
T
SD_HYS
Thermal Resistance
θ
JA
Thermal Shutdown
160
°C
Thermal Shutdown Hysteresis
10
°C
Junction to Ambient
38
°C/W
Note 1:
Absolute Maximum Ratings indicate limits beyond which 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 maximum allowable power dissipation is a function of the maximum junction temperature, T
, the junctions-to-ambient thermal resistance,
θ
JA
,
and the ambient temperature, T
. The maximum allowable power dissipation at any ambient temperature is calculated using: P
D_MAX
= (T
J_MAX
– T
A
)/θ
JA
. The
maximum power dissipations of 2.6W is determined using T
A
= 25°C,
θ
JA
= 38°C/W, and T
J_MAX
= 125°C.
Note 3:
The human body model is a 100 pF capacitor discharged through a 1.5 k
resistor to each pin.
Typical Performance Characteristics
(Coilcraft MSS1038), V
IN
= 5V, V
OUT
= 1.2V, R
LOAD
= 1.2
, f
SW
= 1 MHz, T
A
= 25°C for efficiency curves, loop gain plots and
waveforms, and T
J
= 25°C for all others.
Unless otherwise specified: C
IN
= C
OUT
= 100 μF, L = 1.0 μH
Efficiency vs. Load Current (V
IN
= 5V, f
SW
= 1.5 MHz)
30030331
Efficiency vs. Load Current (V
IN
= 3.3V, f
SW
= 1.5 MHz)
30030330
Efficiency vs. Load Current (V
IN
= 5V, f
SW
= 1 MHz)
30030347
Efficiency vs. Load Current (V
IN
= 3.3V, f
SW
= 1 MHz)
30030346
www.national.com
4
L
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM20133_08 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:3A, PowerWise㈢ Synchronous Buck Regulator with Input Synchronization |
| LM20133EVAL | 功能描述:電源管理IC開發(fā)工具 LM20133 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 |
| LM20133MH | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Down 2.95V to 5.5V 16-Pin TSSOP EP Rail 制造商:Texas Instruments 功能描述:BUCK REG, 3A SYNC, POWERWISE, TSSOP16 制造商:Texas Instruments 功能描述:BUCK REG, 3A SYNC, POWERWISE, TSSOP16; Primary Input Voltage:5.5V; No. of Outputs:1; Output Voltage:5V; Output Current:3A; Voltage Regulator Case Style:TSSOP; No. of Pins:16; Operating Temperature Min:-40C; Operating Temperature ;RoHS Compliant: Yes |
| LM20133MH/NOPB | 功能描述:直流/直流開關轉換器 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(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| LM20133MHE | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Down 2.95V to 5.5V 16-Pin TSSOP EP T/R |
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