參數(shù)資料
型號(hào)： TC1300VUA
廠商： Microchip Technology Inc.
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： 300 mA CMOS LDO with Shutdown, Bypass and Independent Delayed Reset Function
中文描述： 300毫安的CMOS低壓降穩(wěn)壓器，帶有關(guān)斷，繞道和獨(dú)立延遲復(fù)位功能
文件頁(yè)數(shù)： 1/16頁(yè)
文件大小： 326K
代理商： TC1300VUA
2002 Microchip Technology Inc.
DS21385C-page 1
M
Features
LDO with Integrated Microcontroller Reset
Monitor Functionality
Low Input Supply Current (80 μA, typical)
Very Low Dropout Voltage
10 μsec (typ.) Wake-Up Time from SHDN
300 mA Output Current
Standard or Custom Output and Detected
Voltages
Power-Saving Shutdown Mode
Bypass Input for Quiet Operation
Separate Input for Detected Voltage
140 msec Minimum RESET Output Duration
Space-Saving MSOP Package
Specified Junction Temperature Range:
-40°C to +125°C
Applications
Battery-Operated Systems
Portable Computers
Medical Instruments
Pagers
Cellular / GSM / PHS Phones
Related Literature
AN765, “Using Microchip’s Micropower LDOs”,
DS00765.
AN766, “Pin-Compatible CMOS Upgrades to
Bipolar LDOs”, DS00766.
AN792, “A Method to Determine How Much
Power a SOT23 Can Dissipate in an Application”,
DS00792.
Package Type
General Description
The TC1300 combines a low dropout regulator and a
microcontroller reset monitor in an 8-Pin MSOP pack-
age. Total supply current is 80 μA (typical), 20 to 60
times lower than bipolar regulators.
The TC1300 has a precise output with a typical accu-
racy of ±0.5%. Other key features include low noise
operation, low dropout voltage and internal feed-
forward compensation for fast response to step
changes in load. The TC1300 has both over-tempera-
ture and over-current protection. When the shutdown
control (SHDN) is low, the regulator output voltage falls
to zero, RESET output remains valid and supply cur-
rent is reduced to 30 μA (typical). The TC1300 is rated
for 300 mA of output current and stable with a 1 μF out-
put capacitor.
An active-low RESET is asserted when the detected
voltage (V
DET
) falls below the reset voltage threshold.
The RESET output remains low for 300 msec (typical)
after V
DET
rises above reset threshold. The TC1300
also has a fast wake-up response time (10 μsec.,
typical) when released from shutdown.
Typical Application Circuit
1
2
3
4
V
IN
NC
SHDN
V
DET
5
6
7
8
V
OUT
GND
Bypass
RESET
TC1300VUA
MSOP
TC1300
1
2
3
4
5
6
7
8
V
OUT
C
470 pF
(Optional)
Shutdown Control
(from Power
Control Logic)
GND
Bypass
V
IN
SHDN
V
OUT
C
1 μF
RESET
RESET
V
DET
NC
C
1 μF
Battery
V
DET
+
TC1300
300 mA CMOS LDO with Shutdown, Bypass and
Independent Delayed Reset Function
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