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TC1300VUA Arkusz danych(PDF) 1 Page - Microchip Technology

Numer części TC1300VUA
Szczegółowy opis  300 mA CMOS LDO with Shutdown, Bypass and Independent Delayed Reset Function
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Producent  MICROCHIP [Microchip Technology]
Strona internetowa  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC1300VUA Arkusz danych(HTML) 1 Page - Microchip Technology

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 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 (VDET) falls below the reset voltage threshold.
The RESET output remains low for 300 msec (typical)
after VDET 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
V
DET
5
6
7
8
NC
V
OUT
GND
Bypass
SHDN
RESET
TC1300VUA
MSOP
TC1300
1
2
3
4
5
6
7
8
VOUT
CBYPASS
470 pF
(Optional)
Shutdown Control
(from Power
Control Logic)
GND
Bypass
VIN
SHDN
VOUT
C1
1µF
RESET
RESET
VDET
NC
C2
1µF
Battery
VDET
TC1300
300 mA CMOS LDO with Shutdown, Bypass and
Independent Delayed Reset Function


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