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參數資料
| 型號： | L6920 |
| 廠商： | 意法半導體 |
| 英文描述： | 1V HIGH EFFICIENCY SYNCRONOUS STEP UP CONVERTER |
| 中文描述： | 1V的高效SYNCRONOUS升壓轉換器 |
| 文件頁數： | 2/12頁 |
| 文件大?。?/td> | 166K |
| 代理商： | L6920 |
L6920
2/12
PIN DESCRIPTION
PIN CONNECTION
(Top view)
ABSOLUTE MAXIMUM RATINGS
THERMAL DATA
Pin
Name
Function
1
FB
Output voltage selector. Connect FB to GND for Vout=5V or to OUT for Vout=3.3V. Connect FB to an
external resistor divider for adjustable output voltage (from 2V to 5.2V) [see R4 and R5, fig. 7].
2
LBI
Battery low voltage detector input. The internal threshold is set to 1.23V.
A resistor divider is needed to adjust the desired low battery threshold:
[see R1 and R2, fig. 7]
3
LBO
Battery low voltage detector output. If the voltage at the LBI pin drops below the internal
threshold typ. 1.23V,
LBO
goes low.
The
LBO
is an open drain output and so a pull-up resistor (about 200K
) has to be added for
correct output setting [see R3, fig. 7].
4
REF
1.23V reference voltage. Bypass this output to GND with a 100nF capacitor for filtering high
frequency noise. No capacitor is required for stability
5
SHDN
Shutdown pin. When pin 5 is below 0.2V the device is in shutdown, when pin 5 is above 0.6V the
device is operating.
6
GND
Ground pin
7
LX
Step-up inductor connection
8
OUT
Power OUTPUT pin
Symbol
Parameter
Value
Unit
V
ccmax
V
cc
to GND
6
V
LBI, SHDN, FB to GND
6
V
V
out max
Vout to GND
6
V
Symbol
Parameter
Value
Unit
R
th j-amb
Thermal Resistance Junction to Ambient
250
°C/W
T
j
Maximum Junction Temperature
150
°C
V
LBI
1.23V
=
1
R2
-------
+
FB
LBI
REF
GND
LX
OUT
1
3
2
4
6
5
7
8
TSSOP8
LBO
SHDN
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相關代理商/技術參數 |
參數描述 |
|---|---|
| L6920D | 功能描述:直流/直流開關轉換器 0.6 to 5.5V Step-Up 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 |
| L6920DB | 功能描述:直流/直流開關轉換器 Synchronous Rectifer Step Up Converter 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 |
| L6920DBTR | 功能描述:直流/直流開關轉換器 SYNCRONOUS RECT. STEP UP CONVERTER 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 |
| L6920DC | 功能描述:直流/直流開關調節(jié)器 Sync Rectifier Step Up Converter 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 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| L6920DCTR | 功能描述:直流/直流開關調節(jié)器 Sync Rectifier Step Up Converter 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 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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