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參數(shù)資料
| 型號(hào)： | L78LR05 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | 150mA, 5V 5-Pin Voltage Regulator with Reset Function(輸出電壓為5V，輸出電流為150mA的5引腳電源穩(wěn)壓器（帶復(fù)位功能）) |
| 中文描述： | 150毫安，5V的5引腳電壓調(diào)節(jié)器具有復(fù)位功能（輸出電壓為5V的，輸出電流為150mA的的5引腳電源穩(wěn)壓器（帶復(fù)位功能）） |
| 文件頁(yè)數(shù)： | 3/6頁(yè) |
| 文件大?。?/td> | 139K |
| 代理商： | L78LR05 |
L78LR05
No.2622–3/6
Sample Application Circuit 1
Note 1 : When the capacitance of Cd is large, the capacitor may not discharge completely, causing t
d
to be made shorter than a set value. If this is a
problem, either connect a high speed diode (DS442) between pin2 (anode side) and pin5 (cathode side) or ensure an adequate discharge time by
using values for capacitors Cin and Cd such that Cin>Cd.
Note 2 : If a pull-up resistor is connected to the reset output pin externally, it is possible to cause a sink current up to 4mA to flow.
Reset Operation
Sample Application Circuit 2
(Direct battery backup)
Since the leakage current at the output pin (pin5) of the L78LR05 is so low as 2
μ
A or less, a backup circuit can be
implemented by connectiong an electric double layer capacitor (super capacitor : NEC, gold capacitor : Matsushita Elec-
tric) or a Ni Cd battery direct to the output pin. Since a reverse blocking diode, which has been so far connected to the
output pin, is not required, a regulated power-supply voltage can be supplied to a load during the steady-state operation,
without voltage drop caused by the diode and effects of temperature characteristics, current characteristics of the diode. No
battery-regulator switching circuit is required at the battery backup start mode.
Note 3 : The capacitance of reset output signal delay capacitor C
d
must exceed that of input capacitor C
in
. If the capacitance of C
d
is small, a reset pulse
signal may be generated once when the main power source is turned off (at the battery backup start mode).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L78LR05_09 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:150mA, 5V 5-Pin Voltage Regulator with Reset Function |
| L78LR05CL-FA-E | 制造商:ON Semiconductor 功能描述:LINEAR REGULATOR - Bulk 制造商:ON Semiconductor 功能描述:BLKBG / LINEAR REGULATOR |
| L78LR05D-FA-E | 功能描述:線性穩(wěn)壓器 - 標(biāo)準(zhǔn) RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負(fù)載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| L78LR05DL-MA-E | 功能描述:線性穩(wěn)壓器 - 標(biāo)準(zhǔn) RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負(fù)載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| L78LR05D-LR-E | 功能描述:線性穩(wěn)壓器 - 標(biāo)準(zhǔn) RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負(fù)載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
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