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參數(shù)資料
| 型號(hào)： | L5973AD |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2.3 A SWITCHING REGULATOR, PDSO8 |
| 封裝： | EXPOSED PAD, HSOP-8 |
| 文件頁數(shù)： | 2/22頁 |
| 文件大?。?/td> | 486K |
| 代理商： | L5973AD |
Functional description
L5973AD
10/22
Doc ID 9552 Rev 9
Figure 6.
Current limitation circuitry
4.5
Error amplifier
The voltage error amplifier is the core of the loop regulation. It is a transconductance
operational amplifier whose non inverting input is connected to the internal voltage
reference (1.235 V), while the inverting input (FB) is connected to the external divider or
directly to the output voltage. The output (COMP) is connected to the external compensation
network.
The uncompensated error amplifier has the following characteristics:
The error amplifier output is compared with the oscillator sawtooth to perform PWM control.
DRIVER
NOT
A1
PWM
VCC
OUT
A1/A2=95
IL
RSENSE
D00IN1134
IOFF
I
RTH
A2
Table 5.
Uncompensated error amplifier
Transconductance
2300
μS
Low frequency gain
65 dB
Minimum sink/source voltage
1500
μA/300 μA
Output voltage swing
0.4 V/3.65 V
Input bias current
2.5
μA
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L5973AD_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2A switch step down switching regulator |
| L5973AD_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2 A switch step down switching regulator |
| L5973ADTR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.235 to 35V Step-Dn RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| L5973D | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 1.235 to 35V Step-Dn RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| L5973D_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2.5 A switch step down switching regulator?癎 |
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