LTC3526LEDC#TRM datasheet, PDF

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LTC3526LEDC#TRM: DescriptionIC SWITCHING CONTROLLER, 1250 kHz SWITCHING FREQ-MAX, PDSO6, 2 X 2 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WCCD-2, DFN-6, Switching Regulator or Controller; CategoryPower/power management The power supply circuit; File Size342KB，16 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html

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LTC3526LEDC#TRM Overview

IC SWITCHING CONTROLLER, 1250 kHz SWITCHING FREQ-MAX, PDSO6, 2 X 2 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WCCD-2, DFN-6, Switching Regulator or Controller

LTC3526LEDC#TRM Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	Linear ( ADI )
Parts packaging code	SON
package instruction	HVSON,
Contacts	6
Reach Compliance Code	not_compliant
ECCN code	EAR99
Analog Integrated Circuits - Other Types	SWITCHING CONTROLLER
control mode	CURRENT-MODE
Control Technology	PULSE WIDTH MODULATION
Maximum input voltage	5 V
Minimum input voltage	0.5 V
Nominal input voltage	1.2 V
JESD-30 code	S-PDSO-N6
JESD-609 code	e0
length	2 mm
Humidity sensitivity level	1
Number of functions	1
Number of terminals	6
Maximum operating temperature	85 °C
Minimum operating temperature
Package body material	PLASTIC/EPOXY
encapsulated code	HVSON
Package shape	SQUARE
Package form	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	235
Certification status	Not Qualified
Maximum seat height	0.8 mm
surface mount	YES
Switch configuration	BOOST
Maximum switching frequency	1250 kHz
Temperature level	OTHER
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	20
width	2 mm

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FEATURES

■

LTC3526L

550mA 1MHz Synchronous

Step-Up DC/DC Converters

in 2mm

2mm DFN

DESCRIPTIO

The LTC

3526L is a synchronous, ﬁxed frequency step-up

DC/DC converter with output disconnect. Synchronous

rectiﬁcation enables high efﬁciency in the low proﬁle 2mm

2mm DFN package. Battery life in single AA/AAA powered

products is extended further with a 680mV start-up voltage

and operation down to 500mV once started.

A switching frequency of 1MHz minimizes solution foot-

print by allowing the use of tiny, low proﬁle inductors

and ceramic capacitors. The current mode PWM design

is internally compensated, reducing external parts count.

The LTC3526L features Burst Mode operation at light load

conditions allowing it to maintain high efﬁciency over a

wide range of load. Anti-ring circuitry reduces EMI by

damping the inductor in discontinuous mode. Additional

features include a low shutdown current of under 1µA and

thermal shutdown.

The LTC3526L is housed in a 2mm

2mm

0.75mm

DFN package.

, LT, LTC, LTM and Burst Mode are registered trademarks of Linear Technology

Corporation. All other trademarks are the property of their respective owners.

Protected by U.S. Patents including 6498466, 6611131, 5481178, 6580258, 6304066.

Delivers 3.3V at 100mA from a Single Alkaline/

NiMH Cell or 3.3V at 200mA from Two Cells

Start-Up Voltage: 680mV

1.5V to 5.25V V

OUT

Range

Up to 94% Efﬁciency

Output Disconnect

1MHz Fixed Frequency Operation

> V

OUT

Operation

Integrated Soft-Start

Current Mode Control with Internal Compensation

Burst Mode

Operation with 9µA Quiescent Current

Internal Synchronous Rectiﬁer

Logic Controlled Shutdown (I

< 1µA)

Anti-Ringing Control

Low Proﬁle (2mm

2mm

0.75mm)

DFN-6 Package

APPLICATIO S

■

Medical Instruments

Flash-Based MP3 Players

Noise Canceling Headphones

Wireless Mice

Bluetooth Headsets

TYPICAL APPLICATIO

4.7µH

Efﬁciency and Power Loss vs Load Current

100

= 2.4V

EFFICIENCY

100

POWER LOSS (mW)

1000

1.6V TO 3.2V

4.7µF

OFF ON

OUT

1.78M

EFFICIENCY (%)

OUT

3.3V

200mA

4.7µF

3526 TA01a

0.01

0.1

100

0.01

1000

0.1

POWER LOSS

LTC3526L

SHDN

GND

LOAD CURRENT (mA)

!# $ 6)>

3526lf

LTC3526LEDC#TRM Related Products

	LTC3526LEDC#TRM	LTC3526LEDC#TR	LTC3526LEDC
Description	IC SWITCHING CONTROLLER, 1250 kHz SWITCHING FREQ-MAX, PDSO6, 2 X 2 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WCCD-2, DFN-6, Switching Regulator or Controller	IC SWITCHING CONTROLLER, 1250 kHz SWITCHING FREQ-MAX, PDSO6, 2 X 2 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WCCD-2, DFN-6, Switching Regulator or Controller	IC SWITCHING CONTROLLER, 1250 kHz SWITCHING FREQ-MAX, PDSO6, 2 X 2 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WCCD-2, DFN-6, Switching Regulator or Controller
Is it lead-free?	Contains lead	Contains lead	Contains lead
Is it Rohs certified?	incompatible	incompatible	incompatible
Maker	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )
Parts packaging code	SON	SON	SON
package instruction	HVSON,	HVSON, SOLCC6,.08,20	HVSON, SOLCC6,.08,20
Contacts	6	6	6
Reach Compliance Code	not_compliant	not_compliant	_compli
ECCN code	EAR99	EAR99	EAR99
Analog Integrated Circuits - Other Types	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER
control mode	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE
Control Technology	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION	PULSE WIDTH MODULATION
Maximum input voltage	5 V	5 V	5 V
Minimum input voltage	0.5 V	0.5 V	0.5 V
Nominal input voltage	1.2 V	1.2 V	1.2 V
JESD-30 code	S-PDSO-N6	S-PDSO-N6	S-PDSO-N6
JESD-609 code	e0	e0	e0
length	2 mm	2 mm	2 mm
Humidity sensitivity level	1	1	1
Number of functions	1	1	1
Number of terminals	6	6	6
Maximum operating temperature	85 °C	85 °C	85 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	HVSON	HVSON	HVSON
Package shape	SQUARE	SQUARE	SQUARE
Package form	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	235	235	235
Certification status	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	0.8 mm	0.8 mm	0.8 mm
surface mount	YES	YES	YES
Switch configuration	BOOST	BOOST	BOOST
Maximum switching frequency	1250 kHz	1250 kHz	1250 kHz
Temperature level	OTHER	OTHER	OTHER
Terminal surface	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)
Terminal form	NO LEAD	NO LEAD	NO LEAD
Terminal pitch	0.5 mm	0.5 mm	0.5 mm
Terminal location	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	20	20	20
width	2 mm	2 mm	2 mm
Encapsulate equivalent code	-	SOLCC6,.08,20	SOLCC6,.08,20
technology	-	CMOS	CMOS

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