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PDF TC-1188 Data sheet ( Hoja de datos )
| Número de pieza | TC-1188 | |
| Descripción | (TC1189) MAX8863/64 Pin Compatible / Low Dropout / 120 mA Linear Regulators | |
| Fabricantes | Microchip | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TC-1188 (archivo pdf) en la parte inferior de esta página. Total 16 Páginas | ||
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M
TC1188/TC1189
MAX8863/64 Pin Compatible, Low Dropout,
120 mA Linear Regulators
Features
• Input Voltage Range: 2.7 V to 6.0 V
• 120 mA Output Current
• Low Supply Current: 50 µA, (typical)
• Low Dropout Voltage: 110 mV, (typical at 100 mA)
• Fast Turn-On from Shutdown: 140 µsec (typical)
• Low Output Noise
• Over-Current and Over-Temperature Protection
• Low Power Shutdown Mode
• Auto Discharge of Output Capacitor (TC1189)
Applications
• Battery Powered Systems
• Portable Computers
• Medical Instruments
• Cellular, Cordless Phones
• PDAs
• Pagers
Package Type
5-Pin SOT-23A
GND
5
VOUT
4
TC1188
TC1189
1 23
SHDN GND VIN
NOTE: 5-Pin SOT-23A is equivalent to the EIAJ (SC-74A)
General Description
The TC1188 and TC1189 are fixed output, low dropout
linear regulators that operate from a 2.7V to 6.0V input
voltage source. The output is capable of delivering up
to 120 mA while consuming only 50 µA of quiescent
current. The low dropout voltage, 120 mV, make the
TC1188 and TC1189 good choices for battery powered
applications. Integrated over-current and over-temper-
ature protection features provide for a fault tolerant
solution.
The TC1189 includes an output voltage auto discharge
feature. When shutdown, the TC1189 will automatically
discharge the output voltage using an internal N-Chan-
nel MOSFET switch.
Fixed output voltage options for the TC1188/TC1189
are: 1.80V, 2.80V, 2.84V and 3.15V. Both the TC1188
and TC1189 are available in SOT23-5 packages.
Typical Application Circuit
+
–
Battery
CIN
1 µF
VIN VOUT
TC1188
TC1189
SHDN
GND GND
Output
Voltage
COUT
1 µF
2002 Microchip Technology Inc.
DS21364B-page 1
1 page  
TC1188/TC1189
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
VOUT = 2.84V
RLOAD = 50Ω
100mV p-p
COUT = 1µF
10 100 1K 10K 100K 1M 10M
FREQUENCY (kHz)
FIGURE 2-7:
Power Supply Rejection
Ratio vs. Frequency. (TC1188)
CH1 GND
VOUT = 0.5V/DIV
T = 25°
CIN = 1µF
CL =1µF
RL = ∞
SHDN
SHDN = 0V
CH2 GND
FIGURE 2-8:
Response.
200µsec/Div
TC1189 Shutdown Transient
XSHDN = 3V
T
Turn On
Time = 150µS
VOUT = 2.7V
CH1 GND
No Overshoot
CIN = 1µF
COUT =1µF
RL = 100Ω
VIN = 3.5V
CH2
XSHDN = 0V
CH1
CIN = COUT = 1µF, RL = 470Ω, XSHDN = 3.5V
VIN = 4.5V
T
CH1 GND
VIN = 3.5V CH1
VOUTAC 20µV/DIV
CH2 GND T
CH2
FIGURE 2-10:
100µsec/Div
TC1189 Line Response.
SHDN
0V
3V
2.8V
VOUT
0V
VIN = 3.6V
ILOAD = 30mA
CIN = 1µF
CLOAD = 1µF
TIME (100µs/Div)
FIGURE 2-11:
Wake-Up Response Time.
CH2 GND T
FIGURE 2-9:
Response.
VOUT = 0V
200µsec/Div
TC1189 Shutdown Transient
2002 Microchip Technology Inc.
DS21364B-page 5
5 Page 
ON-LINE SUPPORT
Microchip provides on-line support on the Microchip
World Wide Web (WWW) site.
The web site is used by Microchip as a means to make
files and information easily available to customers. To
view the site, the user must have access to the Internet
and a web browser, such as Netscape or Microsoft
Explorer. Files are also available for FTP download
from our FTP site.
Connecting to the Microchip Internet Web Site
The Microchip web site is available by using your
favorite Internet browser to attach to:
www.microchip.com
The file transfer site is available by using an FTP ser-
vice to connect to:
ftp://ftp.microchip.com
The web site and file transfer site provide a variety of
services. Users may download files for the latest
Development Tools, Data Sheets, Application Notes,
User's Guides, Articles and Sample Programs. A vari-
ety of Microchip specific business information is also
available, including listings of Microchip sales offices,
distributors and factory representatives. Other data
available for consideration is:
• Latest Microchip Press Releases
• Technical Support Section with Frequently Asked
Questions
• Design Tips
• Device Errata
• Job Postings
• Microchip Consultant Program Member Listing
• Links to other useful web sites related to
Microchip Products
• Conferences for products, Development Systems,
technical information and more
• Listing of seminars and events
TC1188/TC1189
Systems Information and Upgrade Hot Line
The Systems Information and Upgrade Line provides
system users a listing of the latest versions of all of
Microchip's development systems software products.
Plus, this line provides information on how customers
can receive any currently available upgrade kits.The
Hot Line Numbers are:
1-800-755-2345 for U.S. and most of Canada, and
1-480-792-7302 for the rest of the world.
013001
2002 Microchip Technology Inc.
DS21364B-page 11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet TC-1188.PDF ] | |
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