- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄372074 > S-817A59APF-CVWTFG (Seiko Instruments Inc.) SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR PDF資料下載
參數(shù)資料
| 型號： | S-817A59APF-CVWTFG |
| 廠商： | Seiko Instruments Inc. |
| 英文描述： | SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR |
| 中文描述： | 超小型封裝CMOS電壓穩(wěn)壓器 |
| 文件頁數(shù)： | 11/28頁 |
| 文件大?。?/td> | 412K |
| 代理商： | S-817A59APF-CVWTFG |
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頁當(dāng)前第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
Rev.2.3
S-817 Series
ULTRA COMPACT CMOS VOLTAGE REGULATOR
Seiko Instruments Inc.
11
2. Constant Current Circuit
The S-817 Series can be configured as a
constant current circuit. See Figure 11.
Constant amperage I
O
is calculated using
the following equation
(V
OUT
(E): Effective output voltage):
I
O
= (V
OUT
(E)
÷
RL) +I
SS
.
Please note that it is impossible to set
constant amperage I
O
in case of circuit
(1) of Figure 11 to the value exceeding
the drive ability of the S-817.
However, circuit (2) of Figure 11 is an
example to set constant amperage to the
value exceeding the drive ability of the S-
817. Circuit (2) incorporates a current
boosting circuit. The maximum input
voltage of the constant current circuit is
the value obtained by adding 10 V to
voltage V
O
of the device. It is not
recommended to attach a capacitor
between the S-817 power source VIN and
VSS pins or between output VOUT and
VSS pins because rush current flows at
powering on. An example of input
voltage between V
IN
and VO in circuit (2)
vs. I
O
current characteristics
(Ta = 25
°
C, typ.) is illustrated in Figure 12.
3. Output Voltage Adjustment Circuit
The output voltage can be boosted by using the
configuration shown in Figure 13. The output Voltage
V
O
can be calculated using the following equation
(V
OUT
(E):Effective output voltage):
V
O
= V
OUT
(E) x (R1 + R2)
÷
R1 + R2 x I
SS
Set R1 and R2 to high values of resistance so as not to
be affected by current consumption I
SS.
Capacitor C1 is effective in minimizing output
fluctuation at powering on or due to power or load
fluctuation. Determine the optimum value on your
actual device.
It is not also recommended to attach a
capacitor between the S-817 power
source VIN and VSS pins or between
output VOUT and VSS pins because
output
fluctuation
powering on might occur.
or
oscillation
at
I
(2) Constant Current Boosting Circuit
Figure 11 Constant Current Circuit
R1
GND
Device
RL
VOUT
V
IN
V0
C
IN
VSS
S-817
Series
Tr1
V
O
GND
Device
RL
VOUT
VIN
V
IN
V0
V
O
I
O
C
IN
VSS
(1) Constant Current Circuit
S-817
Series
o
0.00
0.10
0.20
0.30
0.40
0.50
0.60
1.4
1.6
1.8
V
IN
-V
O
(V)
2
2.2
2.4
Io (A)
S-817A11ANB, S-817B11AMC;
V
IN
-V
O
pins, Input voltage-I
O
current
Tr: 2SK1213Y, R1: 1k
,V
O
=2V
RL
=
1.83
2.2
2.75
3.67
5.5
11
GND
V0
R2
R1
VOUT
VIN
V
IN
C
L
C1
C
IN
VSS
Figure 13 Voltage Adjustment Circuit
S-817
Series
Figure 12 Input Voltage vs Current Characteristics
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S-817B27AMC-CWQ-T2 | DIODE ZENER SINGLE 500mW 39Vz 2mA-Izt 0.0513 0.1uA-Ir 27.3 SOD-123 3K/REEL |
| S-817B27AUA-CWQ-T2 | SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR |
| S-817B13AUA-CWC-T2 | SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR |
| S-817B33AUA-CWW-T2 | SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR |
| S-817B13AY-X | SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S-817A60ANB-CVX-T2 | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:SUPER-SMALL PACKAGE CMOS VOLTAGE REGULATOR |
| S-817A60ANB-CVXT2G | 功能描述:低壓差穩(wěn)壓器 - LDO Linear LDO regulator 1.2uA Iq 75mA Iout 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-817A60APF-CVXTFG | 功能描述:低壓差穩(wěn)壓器 - LDO Linear LDO regulator 1.2uA Iq 75mA Iout 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-817B11AMC-CWA-T2 | 功能描述:低壓差穩(wěn)壓器 - LDO 1.1V 1.2uA 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-817B11AMC-CWAT2G | 功能描述:低壓差穩(wěn)壓器 - LDO 1.1V 1.2uA 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。