LTC1728HS5-5#PBF datasheet, PDF

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LTC1728HS5-5#PBF: DescriptionLTC1728 - Micropower Precision Triple Supply Monitors in 8-Lead MSOP and 5-Lead SOT-23 Packages; Package: SOT; Pins: 5; Temperature Range: -40°C to 125°C; CategoryPower/power management The power supply circuit; File Size178KB，16 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html; Environmental Compliance

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LTC1728HS5-5#PBF Overview

LTC1728 - Micropower Precision Triple Supply Monitors in 8-Lead MSOP and 5-Lead SOT-23 Packages; Package: SOT; Pins: 5; Temperature Range: -40°C to 125°C

LTC1728HS5-5#PBF Parametric

Parameter Name	Attribute value
Brand Name	Linear Technology
Is it Rohs certified?	conform to
parentfamilyid	4125936
Maker	Linear ( ADI )
Objectid	1643518368
Parts packaging code	SOT
package instruction	LSSOP, TSOP5/6,.11,37
Contacts	5
Manufacturer packaging code	S5
Reach Compliance Code	compliant
ECCN code	EAR99
compound_id	1432360
Adjustable threshold	YES
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	R-PDSO-G5
JESD-609 code	e3
length	2.9 mm
Humidity sensitivity level	1
Number of channels	3
Number of functions	1
Number of terminals	5
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	LSSOP
Encapsulate equivalent code	TSOP5/6,.11,37
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
power supply	3.3,5 V
Certification status	Not Qualified
Maximum seat height	1.45 mm
Nominal supply voltage (Vsup)	3.3 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn)
Terminal form	GULL WING
Terminal pitch	0.95 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	1.625 mm

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LTC1727/LTC1728

Micropower Precision

Triple Supply Monitors

in 8-Lead MSOP and

5-Lead SOT-23 Packages

FEATURES

■

DESCRIPTIO

■

Monitors Three Inputs Simultaneously

LTC1727-5: 5V, 3.3V and ADJ

LTC1727-2.5: 2.5V, 3.3V and ADJ

LTC1728-5: 5V, 3.3V and ADJ

LTC1728-2.5: 2.5V, 3.3V and ADJ

LTC1728-1.8: 3V, 1.8V and ADJ

LTC1728-3.3: 3.3V, 1.8V and ADJ

±1.5%

Threshold Accuracy Over Temperature

Very Low Supply Current: 10µA Typ

200ms Reset Time Delay

Active Low RESET Output

Power Supply Glitch Immunity

Guaranteed RESET for V

CC3

≥

or V

CC5

CC25

CC18

≥

LTC1727 Includes Monitor Output for Each Supply

LTC1727: 8-Lead MSOP and SO Packages

LTC1728: 5-Lead SOT-23 Package

The LTC

1727 is a triple supply monitor intended for

systems with multiple supply voltages. Each supply moni-

tor has its own open-drain output for individual supply

monitoring. A common open-drain reset output remains

low until all three supplies have been in compliance for

200ms. Tight 1.5% accuracy specifications and glitch

immunity ensure reliable reset operation without false

triggering.

The LTC1728 is functionally identical to the LTC1727

without the individual monitor outputs.

The RST output is guaranteed to be in the correct state for

CC5

CC25

CC18

or V

CC3

down to 1V. The LTC1727/

LTC1728 may also be configured to monitor any one or

two V

inputs instead of three, depending on system

requirements.

Very low (10µA typical) supply current makes the LTC1727/

LTC1728 ideal for power conscious systems.

The LTC1727 is available in an 8-lead MSOP or SO

package and the LTC1728 is available in a 5-lead SOT-23

package.

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

APPLICATIO S

■

Desktop Computers

Notebook Computers

Intelligent Instruments

Portable Battery-Powered Equipment

Network Servers

TYPICAL APPLICATIO

DC/DC

CONVERTER

3.3V

1.8V

SYSTEM

LOGIC

Triple Supply Monitor with Power Good Output

(3.3V, 2.5V and Adjustable)

LTC1727-2.5

3.3V

2.5V

CC3

COMP3

1727/28 TA08

CC3

RST

LTC1728-5

0.1µF

CC5

61.9k

1% 3

CCA

100k

GND

1727/28 TA01

ADJUSTABLE

SUPPLY

10k

POWER

GOOD

SYSTEM

RESET

CC25

COMP25

CCA

GND

RST

COMPA

17278fb

LTC1728HS5-5#PBF Related Products

	LTC1728HS5-5#PBF	LTC1728ES5-2.5#PBF	LTC1728ES5-5#PBF
Description	LTC1728 - Micropower Precision Triple Supply Monitors in 8-Lead MSOP and 5-Lead SOT-23 Packages; Package: SOT; Pins: 5; Temperature Range: -40°C to 125°C	LTC1728 - Micropower Precision Triple Supply Monitors in 8-Lead MSOP and 5-Lead SOT-23 Packages; Package: SOT; Pins: 5; Temperature Range: -40°C to 85°C	LTC1728 - Micropower Precision Triple Supply Monitors in 8-Lead MSOP and 5-Lead SOT-23 Packages; Package: SOT; Pins: 5; Temperature Range: -40°C to 85°C
Brand Name	Linear Technology	Linear Technology	Linear Technology
Is it Rohs certified?	conform to	conform to	conform to
Maker	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )
Parts packaging code	SOT	SOT	SOT
package instruction	LSSOP, TSOP5/6,.11,37	LSSOP, TO-236	LSSOP, TO-236
Contacts	5	5	5
Manufacturer packaging code	S5	S5	S5
Reach Compliance Code	compliant	compliant	compliant
ECCN code	EAR99	EAR99	EAR99
Adjustable threshold	YES	YES	YES
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT	POWER SUPPLY SUPPORT CIRCUIT	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	R-PDSO-G5	R-PDSO-G5	R-PDSO-G5
JESD-609 code	e3	e3	e3
length	2.9 mm	2.9 mm	2.9 mm
Humidity sensitivity level	1	1	1
Number of channels	3	3	3
Number of functions	1	1	1
Number of terminals	5	5	5
Maximum operating temperature	85 °C	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	LSSOP	LSSOP	LSSOP
Encapsulate equivalent code	TSOP5/6,.11,37	TO-236	TO-236
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260	260	260
power supply	3.3,5 V	2.5,3.3 V	3.3,5 V
Certification status	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	1.45 mm	1.45 mm	1.45 mm
Nominal supply voltage (Vsup)	3.3 V	2.5 V	3.3 V
surface mount	YES	YES	YES
technology	CMOS	CMOS	CMOS
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal surface	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)
Terminal form	GULL WING	GULL WING	GULL WING
Terminal pitch	0.95 mm	0.95 mm	0.95 mm
Terminal location	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	30	30	30
width	1.625 mm	1.625 mm	1.625 mm
Is Samacsys	-	N	N
Base Number Matches	-	1	1

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