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TC1313-BP1EUNTR

Description
0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10
CategoryPower/power management    The power supply circuit   
File Size381KB,28 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Environmental Compliance
Download Datasheet Parametric View All

TC1313-BP1EUNTR Overview

0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10

TC1313-BP1EUNTR Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMicrochip
Parts packaging codeMSOP
package instructionPLASTIC, MSOP-10
Contacts10
Reach Compliance Codecompli
ECCN codeEAR99
Other featuresPFM CONTROL TECHNIQUE ALSO POSSIBLE; SECOND OUTPUT VOLTAGE IS 1.8V
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage5.5 V
Minimum input voltage2.7 V
Nominal input voltage3.6 V
JESD-30 codeS-PDSO-G10
JESD-609 codee3
length3 mm
Humidity sensitivity level1
Number of functions1
Number of terminals10
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output current0.5 A
Nominal output voltage3.2 V
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP10,.19,20
Package shapeSQUARE
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
power supply3/5 V
Certification statusNot Qualified
Maximum seat height1.1 mm
Maximum supply current (Isup)0.1 mA
surface mountYES
Switch configurationBUCK
Maximum switching frequency2400 kHz
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.5 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
width3 mm
TC1313
500 mA Synchronous Buck Regulator,
+ 300 mA LDO
Features
• Dual-Output Regulator (500 mA Buck Regulator
and 300 mA Low-Dropout Regulator (LDO))
• Total Device Quiescent Current = 57 µA (Typ.)
• Independent Shutdown for Buck and LDO
Outputs
• Both Outputs Internally Compensated
• Synchronous Buck Regulator:
- Over 90% Typical Efficiency
- 2.0 MHz Fixed-Frequency PWM
(Heavy Load)
- Low Output Noise
- Automatic PWM-to-PFM mode transition
- Adjustable (0.8V to 4.5V) and Standard
Fixed-Output Voltages (0.8V, 1.2V, 1.5V,
1.8V, 2.5V, 3.3V)
• Low-Dropout Regulator:
- Low-Dropout Voltage = 137 mV Typ. @
200 mA
- Standard Fixed-Output Voltages
(1.5V, 1.8V, 2.5V, 3.3V)
• Small 10-pin 3X3 DFN or MSOP Package
Options
• Operating Junction Temperature Range:
- -40°C to +125°C
• Undervoltage Lockout (UVLO)
• Output Short Circuit Protection
• Overtemperature Protection
Description
The TC1313 combines a 500 mA synchronous buck
regulator and 300 mA Low-Dropout Regulator (LDO)
to provide a highly integrated solution for devices that
require multiple supply voltages. The unique combina-
tion of an integrated buck switching regulator and low-
dropout linear regulator provides the lowest system
cost for dual-output voltage applications that require
one lower processor core voltage and one higher bias
voltage.
The 500 mA synchronous buck regulator switches at a
fixed frequency of 2.0 MHz when the load is heavy,
providing a low-noise, small-size solution. When the
load on the buck output is reduced to light levels, it
changes operation to a Pulse Frequency Modulation
(PFM) mode to minimize quiescent current draw from
the battery. No intervention is necessary for smooth
transition from one mode to another.
The LDO provides a 300 mA auxiliary output that
requires a single 1 µF ceramic output capacitor,
minimizing board area and cost. The typical dropout
voltage for the LDO output is 137 mV for a 200 mA
load.
The TC1313 is available in either the 10-pin DFN or
MSOP package.
Additional protection features include: UVLO,
overtemperature and overcurrent protection on both
outputs.
For a complete listing of TC1313 standard parts,
consult your Microchip representative.
Applications
Cellular Phones
Portable Computers
USB-Powered Devices
Handheld Medical Instruments
Organizers and PDAs
Package Type
10-Lead DFN
SHDN2
1
V
IN2
2
V
OUT2
3
NC
4
A
GND
5
10
P
GND
9
L
X
8
V
IN1
7
SHDN1
6
V
FB1
/V
OUT1
10-Lead MSOP
SHDN2
1
V
IN2
2
V
OUT2
3
NC
4
A
GND
5
10
P
GND
9
L
X
8
7
6
V
IN1
SHDN1
V
FB1
/V
OUT1
©
2005 Microchip Technology Inc.
DS21974A-page 1
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