- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄43901 > L7980 (STMICROELECTRONICS) 3.5 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8 PDF資料下載
參數(shù)資料
| 型號： | L7980 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 3.5 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 3 X 3 MM, 1.08 MM HEIGHT, ROHS COMPLIANT, VFQFPN-8 |
| 文件頁數(shù)： | 34/44頁 |
| 文件大?。?/td> | 1247K |
| 代理商： | L7980 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁當前第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁
Pin settings
L7980
4/44
Doc ID 15181 Rev 3
1
Pin settings
1.1
Pin connection
Figure 2.
Pin connection (top view)
1.2
Pin description
OUT
SYNCH
EN
COMP
VCC
GND
FSW
FB
OUT
SYNCH
COMP
VCC
GND
FSW
FB
OUT
SYNCH
EN
COMP
VCC
GND
FSW
FB
OUT
SYNCH
COMP
VCC
GND
FSW
FB
Table 1.
Pin description
N.
Type
Description
1
OUT
Regulator output
2
SYNCH
Master/Slave Synchronization. When it is left floating, a signal with a
phase shift of half a period respect to the power turn on is present at the
pin. When connected to an external signal at a frequency higher than the
internal one, then the device is synchronized by the external signal, with
zero phase shift.
Connecting together the SYNCH pin of two devices, the one with higher
frequency works as master and the other one as slave; so the two
powers turn on have a phase shift of half a period.
3EN
A logical signal (active high) enable the device. With EN higher than 1.2
V the device is ON and with EN is lower than 0.3V the device is OFF.
4
COMP
Error amplifier output to be used for loop frequency compensation
5FB
Feedback input. Connecting the output voltage directly to this pin the
output voltage is regulated at 0.6V. To have higher regulated voltages an
external resistor divider is required from Vout to FB pin.
6FSW
The switching frequency can be increased connecting an external
resistor from FSW pin and ground. If this pin is left floating the device
works at its free-running frequency of 250kHz.
7
GND
Ground
8VCC
Unregulated DC input voltage
相關PDF資料 |
PDF描述 |
|---|---|
| L7980TR | 3.5 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO8 |
| L7981ATR | SWITCHING REGULATOR, DSO8 |
| L7981TR | SWITCHING REGULATOR, DSO8 |
| L8219LP | STEPPER MOTOR CONTROLLER, 2.5 A, PDSO28 |
| L8219P | STEPPER MOTOR CONTROLLER, 2.5 A, PDSO36 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| L7980A | 制造商:STMicroelectronics 功能描述:Conv DC-DC Single Step Down 4.5V to 28V 8-Pin HSOP EP Tube 制造商:STMicroelectronics 功能描述:POWER CONVERSION - Rail/Tube 制造商:STMicroelectronics 功能描述:2A Step-Down Reg 2.5A 4.5 28V 250kHz 制造商:STMicroelectronics 功能描述:BUCK, 4.5-28V, 2A, 1MHZ, 0.6-28V, 8HSOP; Primary Input Voltage:28V; No. of Outputs:1; Output Current:2A; Voltage Regulator Case Style:HSOP; No. of Pins:8; Operating Temperature Min:-25C; Operating Temperature Max:125C; MSL:MSL 3 - ;RoHS Compliant: Yes 制造商:ST 功能描述:0 |
| L7980ATR | 功能描述:直流/直流開關轉換器 2 A Step-Down Reg 4.5V to 28V 250 kHz 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 |
| L7980TR | 功能描述:直流/直流開關轉換器 2A DC 4.5 V to 28 V Adj 0.6V 250 kHz 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 |
| L7981 | 功能描述:直流/直流開關調節(jié)器 3A Step-Down Reg 3A DC 4.5-28V 250Khz RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率: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: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| L7981A | 制造商:STMicroelectronics 功能描述:POWER CONVERSION - Rail/Tube 制造商:STMicroelectronics 功能描述:3A Step-Down Reg 3.7A 4.5 to 28V 1MHz 制造商:ST 功能描述:3A STEP-DOWN SWITCHING REGULATOR |
發(fā)布緊急采購，3分鐘左右您將得到回復。