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PDF TC1306 Data sheet ( Hoja de datos )

Número de pieza TC1306
Descripción Dual 150mA CMOS LDO
Fabricantes Microchip Technology 
Logotipo Microchip Technology Logotipo



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No Preview Available ! TC1306 Hoja de datos, Descripción, Manual

TC1306
Dual 150mA CMOS LDO With Select Mode™ Operation,
Shutdown and RESET Output
Features
• Extremely Low Supply Current for Longer Battery
Life
• Select Mode™ Operation: Selectable Output
www.DataSheet4U.com Voltages for High Design Flexibility
• Very Low Dropout Voltage
• 10µsec (Typ.) Wake-Up Time from SHDN
• Maximum 150mA Output Current per Output
• High Output Voltage Accuracy
• Power-Saving Shutdown Mode
• RESET Output Can Be Used as a Low Battery
Detector or Processor Reset Generator
• Over Current Protection and Over Temperature
Shutdown
• Space Saving 8-Pin MSOP Package
Applications
• Load Partitioning
• Battery Operated Systems
• Portable Computers
• Medical Instruments
• Instrumentation
• Pagers and Cellular/GSM/PHS Phones
• Linear Post-Regulator for SMPS
Device Selection Table
Part Number
Package
Junction
Temperature
Range
TC1306R-BDVUA 8-Pin MSOP -40°C to +125°C
NOTE: “R” denotes the suffix for the 2.63V RESET threshold.
“B” indicates VOUT1 = 1.8V (fixed).
“D” indicates VOUT2 = 2.8V, 3.0V (selectable).
Other output voltages are available. Please contact Microchip
Technology Inc. for details.
Package Type
8-Pin MSOP
VIN 1
GND 2
SELECT 3
SHDN1 4
TC1306
8 RESET
7 VOUT2
6 VOUT1
5 SHDN2
General Description
The TC1306 combines two CMOS Low Dropout Regu-
lators and a Microprocessor Monitor in a space saving
8-Pin MSOP package. Designed specifically for battery
operated systems, total supply current is typically
120µA at full load, 20 to 60 times lower than in bipolar
regulators.
The TC1306 features selectable output voltages for
higher design flexibility. The dual-state SELECT input
pin allows the user to select VOUT2 from 2 different
values (2.8V and 3.0V). VOUT1 supplies a fixed 1.8V
voltage.
An active low RESET is asserted when the output
voltage VOUT2 falls below the 2.63V reset voltage
threshold. The RESET output remains low for 300msec
(typical) after VOUT2 rises above reset threshold. When
the shutdown control (SHDN1) is low, the regulator
output voltage VOUT1 falls to zero and RESET output
remains valid. When the shutdown control (SHDN2) is
low, the regulator output voltage VOUT2 falls to zero and
RESET output is low.
Other key features for the device include ultra low noise
operation, fast response to step changes in load and
very low dropout voltage (typically 125mV at full load).
The device also incorporates both over temperature
and over current protection. Each regulator is stable
with an output capacitor of only 1µF and has a
maximum output current of 150mA.
Typical Application
VIN
GND
SELECT
SHDN1
1
2
3
4
TC1306
8 RESET
7 VOUT2
3.3µF
6 VOUT1
3.3µF
5
SHDN2
© 2002 Microchip Technology Inc.
DS21527B-page 1

1 page




TC1306 pdf
4.0 TYPICAL APPLICATIONS
4.1 Input and Output Capacitor
The TC1306 is stable with a wide range of capacitor
values and types. A capacitor with a minimum value of
1µF from VOUT to Ground is required. The output
capacitor should have an effective series resistance
(ESR) of 0.1to 10for a 1µF capacitor and 0.01to
10for a 10µF capacitor. A 1µF capacitor should be
connected from the VIN to GND if there is more than 10
inches of wire between the regulator and the AC filter
capacitor, or if a battery is used as the power source.
Aluminum electrolytic or tantalum capacitor types can
www.DataSheet4U.combe used. (Since many aluminum electrolytic capacitors
freeze at approximately -30°C, solid tantalums are
recommended for applications operating below -20°C).
When operating from sources other than batteries,
supply-noise rejection and transient response can be
improved by increasing the value of the input and
output capacitors and employing passive filtering
techniques.
4.2 Shutdown Mode
Applying a logic high to each of the shutdown pins turns
on the corresponding output. Each regulator enters
shutdown mode when a logic low is applied to the
corresponding input. During shutdown mode, output
voltage falls to zero, and regulator supply current is
reduced to 0.5µA (max). If shutdown mode is not
necessary, the pins should be connected to VIN.
TC1306
4.3 Select Mode™ Operation
The Select Mode™ operation is a dual-state input that
allows the user to select VOUT2 from two different
values. By applying a logic low to the SELECT pin,
VOUT2 is set to supply a 2.8V output voltage. A logic
high signal at the SELECT pin sets VOUT2 to 3.0V. This
output voltage functionality provides high design
flexibility and minimizes cost associated with inventory,
time-to-market and new device qualifications.
4.4 Turn On Response
The turn on response is defined as two separate
response categories, Wake Up Time (tWK) and Settling
Time (tS).
The TC1306 has a fast Wake Up Time (10µsec typical)
when released from shutdown. See Figure 4-1 for the
Wake Up Time designated as tWK. The Wake Up Time
is defined as the time it takes for the output to rise to 2%
of the VOUT value after being released from shutdown.
The total turn on response is defined as the Settling
Time (tS), see Figure 4-1. Settling Time (inclusive with
tWK) is defined as the condition when the output is
within 2% of its fully enabled value (40µsec typical)
when released from shutdown. The settling time of the
output voltage is dependent on load conditions, output
voltage and VOUT (RC response).
FIGURE 4-1:
WAKE-UP RESPONSE
TIME
VIH
SHDN
VOUT
VIL
tS
98%
2%
tWK
© 2002 Microchip Technology Inc.
DS21527B-page 5

5 Page





TC1306 arduino
TC1306
7.0 PACKAGING INFORMATION
7.1 Package Marking Information
Package marking data not available at this time.
7.2 Taping Form
Component Taping Orientation for 8-Pin MSOP Devices
www.DataSheet4U.com
User Direction of Feed
PIN 1
W
P
Standard Reel Component Orientation
for TR Suffix Device
Carrier Tape, Number of Components Per Reel and Reel Size
Package
8-Pin MSOP
Carrier Width (W)
12 mm
Pitch (P)
8 mm
Part Per Full Reel
2500
Reel Size
13 in
7.3 Package Dimensions
8-Pin MSOP
PIN 1
.122 (3.10) .197 (5.00)
.114 (2.90) .189 (4.80)
.026 (0.65) TYP.
.122 (3.10)
.114 (2.90)
.043 (1.10)
MAX.
6° MAX.
.016 (0.40) .006 (0.15)
.010 (0.25) .002 (0.05)
.028 (0.70)
.016 (0.40)
.008 (0.20)
.005 (0.13)
Dimensions: inches (mm)
© 2002 Microchip Technology Inc.
DS21527B-page 11

11 Page







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