- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄225135 > S-812C26AY-Z 2.6 V FIXED POSITIVE LDO REGULATOR, 0.68 V DROPOUT, PBCY3 PDF資料下載
參數(shù)資料
| 型號： | S-812C26AY-Z |
| 元件分類： | 固定正電壓單路輸出LDO穩(wěn)壓器 |
| 英文描述： | 2.6 V FIXED POSITIVE LDO REGULATOR, 0.68 V DROPOUT, PBCY3 |
| 封裝： | TO-92, 3 PIN |
| 文件頁數(shù)： | 7/49頁 |
| 文件大小： | 873K |
| 代理商： | S-812C26AY-Z |
第1頁第2頁第3頁第4頁第5頁第6頁當前第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頁第45頁第46頁第47頁第48頁第49頁
HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR
Rev.2.0_01
S-812C Series
Seiko Instruments Inc.
15
3. Shutdown function (ON/OFF pin)
The ON/OFF pin controls the start and stop of the regulation operation.
When the ON/OFF pin is set to shutdown level, halting whole internal circuit and turning off the Pch MOS
FET between VIN and VOUT pins, current consumption is drastically reduced. The voltage of the VOUT
pin becomes VSS level due to the internal resistance divider of several M
between VOUT and VSS.
The ON/OFF pin should not be left afloat since no pull-up nor pull-down is made internally as shown in
Figure 16. Note also that a current will flow to the VIN side via the parasitic diode inside the IC if a
voltage of VIN + 0.3 V or more is applied. When the shutdown function is not used, connect the pin to the
VIN pin in case of positive logic and to the VSS pin in case of negative logic.
When a regulation operation at light load less than 100
A is halted, output voltage may increase. If the
increase of the output voltage should be avoided, pull down the VOUT pin to the VSS level as soon as
ON/OFF pin goes to the shutdown level.
Table 10
Logic Type
ON/OFF Pin
Internal Circuits
VOUT Pin Voltage
Current Consumption
B
“L”: Power off
Stopped
VSS level
ISS2
B
“H”: Power on
Operating
Set value
ISS1
VIN
ON/OFF
VSS
Figure 16
4. Short-circuit protection
Installation of the short-circuit protection which protects the output transistor against short-circuit between
VOUT and VSS can be selected in the S-812C series. The short-circuit protection controls output current
as shown in the typical characteristics, (1) OUTPUT VOLTAGE versus OUTPUT CURRENT, and
suppresses output current at about 40 mA even if VOUT and VSS pins are short-circuited.
The short-circuit protection can not at the same time be a thermal protection. Attention should be paid to
the Input voltage and the load current under the actual condition so as not to exceed the power
dissipation of the package including the case for short-circuit.
When the output current is large and the difference between input and output voltage is large even if not
shorted, the short-circuit protection may work and the output current is suppressed to the specified value.
Products without short-circuit protection can provide comparatively large current by removing a short-
circuit protection.
相關PDF資料 |
PDF描述 |
|---|---|
| S-812C28AY-B | 2.8 V FIXED POSITIVE LDO REGULATOR, 0.68 V DROPOUT, PBCY3 |
| S-812C44AUA-C2Y-T2 | 4.4 V FIXED POSITIVE LDO REGULATOR, 0.3 V DROPOUT, PSSO3 |
| S-812C47AUA-C3B-T2 | 4.7 V FIXED POSITIVE LDO REGULATOR, 0.27 V DROPOUT, PSSO3 |
| S-812C51AY-B | 5.1 V FIXED POSITIVE LDO REGULATOR, 0.25 V DROPOUT, PBCY3 |
| S-812C53AMC-C3H-T2 | 5.3 V FIXED POSITIVE LDO REGULATOR, 0.25 V DROPOUT, PDSO5 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| S-812C26BMC-C4GT2G | 功能描述:低壓差穩(wěn)壓器 - LDO Linear LDO Reg 1.0uA Iq 75mA Iout ON/OFF RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| S-812C26BPI-C4GTFG | 功能描述:低壓差穩(wěn)壓器 - LDO Linear LDO reg 1.0uA Iq 75mA Iout ON/OFF RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| S-812C27AMC-C2H-T2 | 功能描述:低壓差穩(wěn)壓器 - LDO 2.7V 1.0uA 2.0% RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| S-812C27AMC-C2HT2G | 功能描述:低壓差穩(wěn)壓器 - LDO 2.7V 1.0uA 2.0% RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| S-812C27AMC-C2HT2U | 功能描述:IC REG LINEAR 30MA SOT23-5 制造商:ablic u.s.a. inc. 系列:* 包裝:剪切帶（CT） 零件狀態(tài):在售 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應商器件封裝:SOT-23-5 標準包裝:1 |
發(fā)布緊急采購，3分鐘左右您將得到回復。