TC1313-AR2EUN datasheet, PDF - EEWORLD Datasheet

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TC1313-AR2EUN: Description0.5 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

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TC1313-AR2EUN Overview

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

TC1313-AR2EUN Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Microchip
Parts packaging code	MSOP
package instruction	PLASTIC, MSOP-10
Contacts	10
Reach Compliance Code	compli
ECCN code	EAR99
Other features	PFM CONTROL TECHNIQUE ALSO POSSIBLE; SECOND OUTPUT VOLTAGE IS 1.6V
Analog Integrated Circuits - Other Types	SWITCHING REGULATOR
control mode	CURRENT-MODE
Control Technology	PULSE WIDTH MODULATION
Maximum input voltage	5.5 V
Minimum input voltage	2.7 V
Nominal input voltage	3.6 V
JESD-30 code	S-PDSO-G10
JESD-609 code	e3
length	3 mm
Humidity sensitivity level	1
Number of functions	1
Number of terminals	10
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Maximum output current	0.5 A
Nominal output voltage	3.3 V
Package body material	PLASTIC/EPOXY
encapsulated code	TSSOP
Encapsulate equivalent code	TSSOP10,.19,20
Package shape	SQUARE
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
power supply	3/5 V
Certification status	Not Qualified
Maximum seat height	1.1 mm
Maximum supply current (Isup)	0.1 mA
surface mount	YES
Switch configuration	BUCK
Maximum switching frequency	2400 kHz
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn)
Terminal form	GULL WING
Terminal pitch	0.5 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	40
width	3 mm

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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

IN2

OUT2

GND

IN1

SHDN1

FB1

OUT1

10-Lead MSOP

SHDN2

IN2

OUT2

GND

IN1

SHDN1

FB1

OUT1

2005 Microchip Technology Inc.

DS21974A-page 1

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