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LTC4088

Features: Switching Regulator Makes Optimal Use of LimitedPower Available from USB Port to Charge Batteryand Power Application 180m Internal Ideal Diode Plus Optional External Ideal Diode Controller Seamlessly Provides Low Loss Power Path When Input Power is Limited or Unavailable Full Featured Li...

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SeekIC No. : 004402450 Detail

LTC4088: Features: Switching Regulator Makes Optimal Use of LimitedPower Available from USB Port to Charge Batteryand Power Application 180m Internal Ideal Diode Plus Optional External Ideal Diode Controller...

LTC4088 Data Sheet

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Part Number:
LTC4088
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

Switching Regulator Makes Optimal Use of Limited
Power Available from USB Port to Charge Battery
and Power Application
180m Internal Ideal Diode Plus Optional External Ideal Diode Controller Seamlessly Provides Low Loss Power Path When Input Power is Limited or Unavailable
Full Featured Li-Ion/Polymer Battery Charger
VBUS Operating Range: 4.25V to 5.5V (7V Absolute Maximum-Transient)
1.2A Maximum Input Current Limit
1.5A Maximum Charge Current with Thermal Limiting
Bat-TrackTM Adaptive Output Control
Slew Control Reduces Switching EMI
Low Profi le (0.75mm) 14-Lead 4mm * 3mm DFN Package


Application

Media Players
Digital Cameras
GPS
PDAs
Smart Phones


Pinout

Connection Diagram


Specifications

VBUS (Transient) t < 1ms, Duty Cycle < 1% .. 0.3V to 7V
VBUS (Static), BAT, CHRG, NTC, D0,
D1, D2 .......................................................... 0.3V to 6V
ICLPROG ....................................................................3mA
IPROG, IC/X ................................................................2mA
ILDO3V3 ...................................................................30mA
ICHRG ......................................................................75mA
IOUT .............................................................................2A
ISW ..............................................................................2A
IBAT .............................................................................2A
Maximum Operating Junction Temperature .......... 125
Operating Temperature Range ................. 40 to 85
Storage Temperature Range ................... 65 to 125


Description

The LTC®4088 is a high effi ciency USB PowerPathTM controller and Li-Ion/Polymer battery charger. It includes a synchronous switching input regulator, a full-featured battery charger and an ideal diode. Designed specifi cally for USB applications, the LTC4088's switching regulator automatically limits its input current to either 100mA, 500mA or 1A for wall-powered applications via logic control.

The switching input stage provides power to VOUT where power sharing between the application circuit and the battery charger is managed. Unlike linear PowerPath controllers, the LTC4088's switching input stage can use nearly all of the 0.5W or 2.5W available from the USB port with minimal power dissipation.

This feature allows the LTC4088 to provide more power to the application and eases thermal issues in space-constrained applications.

An ideal diode ensures that system power is available from the battery when the input current limit is reached or if the USB or wall supply is removed.

The LTC4088 is available in the low profi le 14-Lead 4mm * 3mm * 0.75mm DFN surface mount package.




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