- 您現(xiàn)在的位置：買賣IC網 > PDF目錄383915 > TC1307 (Microchip Technology Inc.) Four-Channel CMOS LDO with Select Mode, Shutdown and Independent Reset PDF資料下載
參數(shù)資料
| 型號： | TC1307 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | Four-Channel CMOS LDO with Select Mode, Shutdown and Independent Reset |
| 中文描述： | 四通道CMOS低壓降穩(wěn)壓器的選擇模式，關機和獨立復位 |
| 文件頁數(shù)： | 16/28頁 |
| 文件大?。?/td> | 553K |
| 代理商： | TC1307 |
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頁第11頁第12頁第13頁第14頁第15頁當前第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
TC1307
DS21702A-page 16
2002 Microchip Technology Inc.
5.0
APPLICATIONS
5.1
Load Partitioning
The
TC1307
can be used to power two separate chan-
nels for a wide range of applications. Each channel can
be turned ON and OFF independently of the other. In
this example, the SELECT12 pin is tied to V
IN
and the
SELECT34 pin is tied to GND. The output voltages of
V
OUT1
and V
OUT2
are 3.0V and the output voltage of
V
OUT3
and V
OUT4
are 1.8V. If V
OUT1
and V
OUT3
were
powering 1 Channel and V
OUT2
and V
OUT4
were pow-
ering an identical Channel, either Channel could be
powered independent of the other Channel. The output
voltage of V
OUT1
is being monitored by the internal volt-
age detection circuit. When the output of V
OUT1
is
below the typical 2.63V threshold voltage, the RESET
output will transition low.
5.2
Input Capacitor
Low input source impedance is necessary for the LDO
to operate properly. When operating off of batteries or
in applications with long lead length (>10”) between the
input source and the LDO, some input capacitance is
required. A minimum of 2.2 μF is recommended for
most applications and the capacitor should be placed
as close to the input of the LDO as practical (>0.2”).
Larger input capacitors will help reduce the input
impedance and further reduce any high frequency
noise on the input and output of the LDO. If more than
1 μF of capacitance is used on the LDO outputs, a
4.7 μF input capacitor is recommended.
5.3
Output Capacitor
A minimum output capacitance of 1 μF for the
TC1307
is required for stability. The esr requirements on the
output capacitor are between 0 and 2 ohms. The output
capacitor should be located as close to the LDO output
as practical. Ceramic materials X7R and X5R have low
temperature coefficients and are well within the accept-
able esr range required. A typical 1 μF X5R 0805
capacitor has an esr of 50 milli-ohms. Larger output
capacitors can be used with the
TC1307
to improve
dynamic behavior, noise and ripple rejection perfor-
mance.
5.4
Power Dissipation
The internal power loading within the TC1307 is a func-
tion of input voltage, output voltage, output current, qui-
escent current and RESET output dissipation. For
many applications the power dissipation within the lin-
ear P-Channel device can be used as a good approxi-
mation of total power dissipation. This is due to the low
quiescent current consumed even when the LDO out-
put is providing full load current (150 mA).
FIGURE 5-1:
Typical 4 Output with RESET Application.
TC1307
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
V
DET
SHDN1
SHDN3
SHDN4
SHDN2
SELECT12
SELECT34
V
IN
V
IN
V
IN
RESET
V
OUT1
V
OUT2
V
OUT3
V
OUT4
GND
Battery
Input
1 μF
1 μF
1 μF
1 μF
4.7 μF
Shutdown #2
Shutdown #1
Shutdown #4
Shutdown #3
Controller
MCLR
or
RESET
V
DD
+3.0V
+3.0V
+1.8V
+1.8V
Micro
相關PDF資料 |
PDF描述 |
|---|---|
| TC1313-CL0EMFTR | 500 mA Synchronous Buck Regulator, + 300 mA LDO |
| TC1313-CL0EUN | 500 mA Synchronous Buck Regulator, + 300 mA LDO |
| TC1313-CL0EUNTR | 500 mA Synchronous Buck Regulator, + 300 mA LDO |
| TC1313-CL1EMF | 500 mA Synchronous Buck Regulator, + 300 mA LDO |
| TC1313-CL1EMFTR | 500 mA Synchronous Buck Regulator, + 300 mA LDO |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TC1307R-XYVQRTR | 功能描述:低壓差穩(wěn)壓器 - LDO Dual LDO w/ Sdn 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 |
| TC130AW10 | 制造商:Panduit Corp 功能描述: |
| TC130EI10 | 功能描述:電線導管 T130 Power Rated Multi-Channel Raceway C RoHS:否 制造商:Panduit 類型:Slotted SideWall Open finger design wiring cut 材料:Polypropylene 顏色:Light Gray 大小: 最大光束直徑: 抗拉強度: 外部導管寬度:25 mm 外部導管高度:25 mm |
| TC130EI6 | 功能描述:電線導管 T130 Power Rated Multi-Channel Raceway C RoHS:否 制造商:Panduit 類型:Slotted SideWall Open finger design wiring cut 材料:Polypropylene 顏色:Light Gray 大小: 最大光束直徑: 抗拉強度: 外部導管寬度:25 mm 外部導管高度:25 mm |
| TC130EI8 | 功能描述:電線導管 T130 Power Rated Multi-Channel Raceway C RoHS:否 制造商:Panduit 類型:Slotted SideWall Open finger design wiring cut 材料:Polypropylene 顏色:Light Gray 大小: 最大光束直徑: 抗拉強度: 外部導管寬度:25 mm 外部導管高度:25 mm |
發(fā)布緊急采購，3分鐘左右您將得到回復。