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Datasheet Linear Technology LTC3577-1

ManufacturerLinear Technology
SeriesLTC3577-1

1 - Highly Integrated 6-Channel Portable PMIC

Datasheets

  • Download » Datasheet PDF, 651 Kb, Revision: A, File uploaded: Jan 26, 2017
    LTC3577/LTC3577-1 - Highly Integrated 6-Channel Portable PMIC
    Docket ↓
    LTC3577/LTC3577-1
    Highly Integrated
    6-Channel Portable PMIC
    DESCRIPTION FEATURES n Full Featured Li-Ion/Polymer Charger/PowerPath™
    Controller with Instant-On Operation
    Triple Adjustable High Efficiency Step-Down
    Switching Regulators (800mA, 500mA, 500mA IOUT)
    6μA Battery Drain Current in Hard Reset
    Bat-Track™ Control for External HV Buck DC/DCs
    I2C Adjustable SW Slew Rates for EMI Reduction
    High Temperature Battery Voltage Reduction
    Improves Safety and Reliability
    Overvoltage Protection for USB (VBUS)/Wall Inputs
    Provides Protection to 30V
    Integrated 40V Series LED Backlight Driver with 60dB
    Brightness Control and Gradation via I2C
    1.5A Maximum Charge Current with Thermal Limiting
    Battery Float Voltage: 4.2V (LTC3577)
    4.1V (LTC3577-1)
    Pushbutton On/Off Control with System Reset
    Dual 150mA Current Limited LDOs
    Small 4mm × 7mm 44-Pin QFN Package APPLICATIONS PNDs, DMB/DVB-H; Digital/Satellite Radio;
    Media Players ...

Prices

Packaging

LTC3577EUFF-1#PBFLTC3577EUFF-1#TRPBF
Package4x7 QFN-44
Package Outline Drawing
4x7 QFN-44
Package Outline Drawing
Package CodeUFFUFF
Package Index05-08-176205-08-1762
Pin Count4444

Parametrics

LTC3577EUFF-1#PBFLTC3577EUFF-1#TRPBF
Battery ChemistryLi-Ion, Li-PolymerLi-Ion, Li-Polymer
Buck Output Current, A0.5, 0.5, 0.80.5, 0.5, 0.8
Demo BoardsDC1402A-A,DC1402A-BDC1402A-A,DC1402A-B
Export Controlnono
FeaturesPowerPath, Overvoltage Protection, Triple Buck, Dual LDO, I2C, Push Button Reset, LED DriverPowerPath, Overvoltage Protection, Triple Buck, Dual LDO, I2C, Push Button Reset, LED Driver
Float Voltage, V4.1V4.1V
LDO Output Current, A0.15, 0.150.15, 0.15
Max Charge Current, A1.51.5
Number of Cells11
Number of Outputs66
Operating Temperature Range, °C0 to 850 to 85
PowerPathLinear PowerPath, 200mΩ Internal Ideal DiodeLinear PowerPath, 200mΩ Internal Ideal Diode
Type of ChargerLinearLinear
Vin Max, V5.55.5
Vin Min, V4.354.35

Eco Plan

Other Options

LTC3577

Design Notes

  • Download » Design Notes - DN470 PDF, 76 Kb, File published: Jul 22, 2009
    One Device Replaces Battery Charger, Pushbutton Controller, LED Driver and Voltage Regulator ICs in Portable Electronics
    Docket ↓
    One Device Replaces Battery Charger, Pushbutton Controller,
    LED Driver and Voltage Regulator ICs in Portable Electronics
    Design Note 470
    Marty Merchant
    Introduction
    The LTC®3577/LTC3577-1 integrates a number of portable
    device power management functions into one IC, reducing
    complexity, cost and board area in handheld devices. The
    major functions include: Five voltage regulators to power memory, I/O, PLL,
    CODEC, DSP or a touch-screen controller A battery charger and PowerPath™ manager An LED driver for backlighting an LCD display, keypad
    and/or buttons Pushbutton control for debouncing the on/off button,
    supply sequencing and allowing end-users to force a
    hard reset when the microcontroller is not responding
    By combining these functions, the LTC3577/LTC3577-1
    does more than just reduce the number of required ICs; it
    solves the problems of functional interoperability—where
    otherwise separate features operate together for improved
    end-product performance. For instance, when the power
    input is from USB, the limited input current is logically
    distributed among the power supply outputs and the
    battery charger. Status output indicates when the pushbutton is depressed,
    allowing the microprocessor to alter operation or begin
    the power-down sequence. Holding the pushbutton down ...

Articles

  • Download » Articles - LT Journal PDF, 138 Kb, File published: Dec 1, 2009
    All-in-One Power for Portables: Single IC Replaces Battery Charger, Pushbutton Controller, LED Driver and Five Voltage Regulator ICs
    Docket ↓
    L DESIGN IDEAS All-in-One Power for Portables:
    Single IC Replaces Battery Charger,
    Pushbutton Controller, LED Driver and
    Five Voltage Regulator ICs by Marty Merchant
    Introduction Pushbutton Control The LTC3577/LTC3577-1 integrates
    a number of portable device power
    management functions into one IC,
    reducing complexity, cost and board
    area in handheld devices. The major
    functions include:
    q Five voltage regulators to power
    memory, I/O, PLL, CODEC, DSP
    or a touch-screen controller
    q A battery charger and
    PowerPath™ manager
    q An LED driver for backlighting
    an LCD display, keypad and/or
    buttons
    q Pushbutton control for
    debouncing the on/off button,
    supply sequencing and allowing
    end-users to force a hard reset
    when the microcontroller is not ...

Moldel Line

Series: LTC3577-1 (2)

Manufacturer's Classification

  • Power Management > PMIC & Multifunction > PMIC (DC/DC, PowerPath and Battery Charger)

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