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даташит SC729 PDF ( Datasheet )

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Номер произв SC729
Описание Very Low Ron Load Switch
Производители Semtech
логотип Semtech логотип 



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SC729 Даташит, Описание, Даташиты
POWER MANAGEMENT
Features
Input Voltage Range – 1.1V to 3.6V
2A Continuous Output Current
Ultra-Low Ron – 36mΩ
Automatic Output Discharge Circuit
Fast Turn-on Option With No Output Discharge
Circuit – SC728
Extended Soft Start Option With Automatic Out-
put Discharge Circuit – SC729
Low Quiescent Current – 0.81µA(Typ.)
Low Shutdown Current < 1µA – SC728
1.1V Logic Level Enable Compatible With CMOS/GPIO
Control
Hardened ESD Protection 3kV
Package: CSP – 0.76mm × 0.76mm, 0.4mm Pitch
SC728/SC729
2A Low Vin, Very Low Ron
Load Switch
Description
The SC728/SC729 is a low input voltage, very low Ron
load switch designed for use in battery powered applica-
tions. Very low quiescent current of less than 2µA, and a
low shutdown current of less than 1µA (SC728) reduces
power loss during Standby and Off states. A logic level
Enable allows low voltage on/off control down to 1.1V.
The SC728 provides a quick turn on time, while the SC729
provides a longer soft start to limit inrush current. The
SC729 also features an automatic discharge circuit which
discharges the output when the part is disabled.
The SC728/SC729 is offered in an ultra-small 4-bump
0.76mm × 0.76mm Chip Scale Package (CSP) which
enables very small board area implementations. The
SC728/SC729 has an operating ambient temperature
range of -40°C to +85°C.
Applications
Smart Phones
Tablet PCs
GPS Devices
Battery Powered Equipment
Other Portable Device
SC724/SC725 offers an alternative bump connection
pattern to SC728/SC729. Please go to Semtech.com
website for details.
Device
Package
Automatic
Discharge
Rising Time
SC728
CSP
No 3µs(Typ.)
SC729
CSP
Yes 140µs(Typ.)
Typical Application Circuit
SUPPLY
1µF
ENABLE
VIN VOUT
SC728 / SC729
EN GND
LOAD
1µF
Rev. 2.2
© 2015 Semtech Corporation










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SC729 Даташит, Описание, Даташиты
Pin Configuration
TO P VIEW
(BUMPS ON THE BOTTOM )
A1 A2
B1 B2
CSP 0.76x0.76, 4 Bump
SC728/SC729
Ordering Information
Device
SC728CSTRT
SC729CSTRT
Package
CSP 0.76mm×0.76mm 4-bump
CSP 0.76mm×0.76mm 4-bump
SC728EVB
Evaluation Board
SC729EVB
Evaluation Board
Notes:
(1) Available in tape and reel only. A reel contains 5,000 devices.
(2) Lead-free packaging only. Device is WEEE and RoHS compliant,
and halogen free.
Pin Descriptions
Pin #
A2
B2
A1
B1
Pin
Name
VIN
EN
VOUT
GND
Pin Function
Input Voltage.
Enable input. A 5.5MΩ internal resistor is connected from this pin to GND. Drive HIGH to turn on the switch;
drive LOW to turn off the switch. When the EN pin is floated, the switch is OFF.
Output Voltage.
Ground.










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SC729 Даташит, Описание, Даташиты
Marking Information(SC728)
SC728/SC729
Marking Information(SC729)
Marking for the 0.76 x 0.76 mm CSP 4 Lead Package :
O = Pin 1 ID
nn = Part No. Code (Example: AV) - Reference Part No.
Marking for the 0.76 x 0.76 mm CSP 4 Lead Package :
O = Pin 1 ID
nn = Part No. Code (Example: AY) - Reference Part No.











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