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參數(shù)資料
| 型號(hào)： | S-816A33 |
| 廠商： | Seiko Instruments Inc. |
| 英文描述： | 3.3V±2.0% External Transistor Type Voltage Regulators(輸出電壓3.3V±2.0%，外部晶體管型穩(wěn)壓器) |
| 中文描述： | 3.3 ± 2.0％外部晶體管式電壓調(diào)節(jié)器（輸出電壓為3.3V ± 2.0％，外部晶體管型穩(wěn)壓器） |
| 文件頁數(shù)： | 11/21頁 |
| 文件大?。?/td> | 200K |
| 代理商： | S-816A33 |
External Transistor Type Voltage Regulators
S-816 Series
Rev.3.0
10
Seiko Instruments Inc.
Where RAmax, RAmin, RBmax and RBmin denote the maximum and minimum of the absolute accuracy of external
resistances RA and RB, and RImax and RImin denote the maximum and minimum deviations of the absolute value of the
internal resistance (RI) in the IC, respectively.
The deviations in the absolute value of internal resistance (RI) in the IC vary with the output voltage set value of the S-816
Series, and are broadly classified as follows:
·
Output voltage(VOUT) 2.5V to 2.7V
T
3.29M
W
to 21.78M
W
·
Output voltage(VOUT) 2.8V to 3.1V
T
3.29M
W
to 20.06M
W
·
Output voltage(VOUT) 3.2V to 3.7V
T
2.23M
W
to 18.33M
W
·
Output voltage(VOUT) 3.8V to 5.1V
T
2.23M
W
to 16.61M
W
·
Output voltage(VOUT) 5.2V to 6.0V
T
2.25M
W
to 14.18M
W
If a value of RI given by the equation shown below is taken in calculating the output voltage (OUT), a median voltage
deviation of the output voltage (OUT) will be obtained.
RI = 2
( 1
(Maximum value of internal resistance of IC) + 1
(Minimum value of internal resistance of IC) )
The closer the output voltage (OUT) and the output voltage set value (VOUT) of the IC are brought to each other, the more
the accuracy of the output voltage (OUT) remains immune to deviations in the absolute accuracy of external resistances (RA
and RB) and the absolute value of the internal resistance (RI) of the IC.
In particular, to suppress the influence of deviations in the internal resistance (RI), the resistance values of external
resistances (RA, RB) need to be limited to a much smaller value than that of the internal resistance (RI). However, since
reactive current flows through the external resistances (RA, RB), there is a tradeoff between the accuracy of the output voltage
(OUT) and the reactive current. This should be taken into consideration, according to the requirements of the intended
application.
Note that when larger value (more than 1M
W
) is taken for the external resistances (RA, RB), IC is vulnerable to external noise.
Check the influence of this value well with the actual application.
Furthermore, add a capacitor CC in parallel to the external resistance RA in order to avoid output oscillations and other types
of instability. (See Figure 11.)
Make sure that the capacitance value of CC is larger than the value given by the following equation:
CC[F]
3
1
( 2
′
p
′
RA[
W
]
′
6000 )
·
SII is equipped with a tool that allows you to calculate the necessary resistance values of the
external resistances (RA, RB) automatically. SII will be pleased to assist its customers with
their design work. Should such assistance be desired, please inquire at:
SII Components Sales Dept. Telephone: 043-211-1192 (Direct) Fax: 043-211-8032
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| S-816A33AMC-BAI-T2 | 功能描述:低壓差穩(wěn)壓器 - LDO 2.5V 1uA 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(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| S-816A33AMC-BAIT2G | 功能描述:低壓差穩(wěn)壓器 - LDO 2.5V 1uA 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(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| S-816A33AMC-BAIT2U | 功能描述:IC REG LINEAR 1A 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 穩(wěn)壓器數(shù):1 電流 - 輸出:1A 工作溫度:-40°C ~ 85°C（TA） 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商器件封裝:SOT-23-5 標(biāo)準(zhǔn)包裝:1 |
| S-816A34AMC-BAI-T2 | 功能描述:低壓差穩(wěn)壓器 - LDO 2.5V 1uA 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(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| S-816A34AMC-BAIT2G | 功能描述:低壓差穩(wěn)壓器 - LDO 2.5V 1uA 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(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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