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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)： | 4/22頁 |
| 文件大小： | 486K |
| 代理商： | L5973AD |
Functional description
L5973AD
12/22
Doc ID 9552 Rev 9
Figure 7.
Driving circuitry
4.7
Inhibit function
The inhibit feature allows to put in stand-by mode the device. With INH pin higher than 2.2 V
the device is disabled and the power consumption is reduced to less than 100
μA. With INH
pin lower than 0.8 V, the device is enabled. If the INH pin is left floating, an internal pull up
ensures that the voltage at the pin reaches the inhibit threshold and the device is disabled.
The pin is also Vcc compatible.
4.8
Thermal shutdown
The shutdown block generates a signal that turns off the power stage if the temperature of
the chip goes higher than a fixed internal threshold (150 °C). The sensing element of the
chip is very close to the PDMOS area, so ensuring an accurate and fast temperature
detection. An hysteresis of approximately 20 °C avoids that the devices turns on and off
continuously
Vgsmax
GATE
STOP
DRIVE
DRAIN
OFF
ON
PDMOS
VOUT
DRAIN
VCC
ILOAD
C
ESR
D00IN1133
IOFF
ION
ON/OFF
CONTROL
CLAMP
L
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| L5973AD_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2A switch step down switching regulator |
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| 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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