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Datasheet Linear Technology LT3028

Manufacturer:Linear Technology
Series:LT3028

Dual 100mA/500mA Low Dropout, Low Noise, Micropower Regulators with Independent Inputs

Datasheets

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    LT3028 - Dual 100mA/500mA Low Dropout, Low Noise, Micropower Regulators with Independent Inputs
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    LT3028
    Dual 100mA/500mA
    Low Dropout, Low Noise,
    Micropower Regulators with
    Independent Inputs U FEATURES DESCRIPTIO ■ The LT ®3028 is a dual, micropower, low noise, low dropout regulator with independent inputs. With an external
    0.01µF bypass capacitor, output noise is a low 20µVRMS
    over a 10Hz to 100kHz bandwidth. Designed for use in
    battery-powered systems, the low 30µA quiescent current
    per output makes it an ideal choice. In shutdown, quiescent current drops to less than 0.1µA. Shutdown control
    is independent for each output, allowing for flexibility in
    power management. The device is capable of operating
    over an input voltage range of 1.8V to 20V. Output 1 can
    supply 500mA of output current with a dropout voltage of
    320mV. The device can supply 100mA of output current
    from Output 2 with a dropout voltage of 300mV. Quiescent
    current is well controlled in dropout.
    The LT3028 regulator is stable with output capacitors as
    low as 1µF for the 100mA output and 3.3µF for the 500mA
    output. Small ceramic capacitors can be used without the
    series resistance required by other regulators.
    Internal protection circuitry includes reverse-battery protection, current limiting and thermal limiting protection.
    The device is available as an adjustable device with a 1.22V
    reference voltage. The LT3028 regulator is available in the ...

Eco Plan

 LT3028EDHC#PBFLT3028EDHC#TRPBFLT3028EFE#PBFLT3028EFE#TRPBFLT3028IDHC#PBFLT3028IDHC#TRPBFLT3028IFE#PBFLT3028IFE#TRPBF
RoHSCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliant

Parametrics

 LT3028EDHC#PBFLT3028EDHC#TRPBFLT3028EFE#PBFLT3028EFE#TRPBFLT3028IDHC#PBFLT3028IDHC#TRPBFLT3028IFE#PBFLT3028IFE#TRPBF
Demo BoardsDC832ADC832ADC832ADC832ADC832ADC832ADC832ADC832A
Design ToolsLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice File
Discrete Pass Element, yes/nonononononononono
Dropout Voltage, V0.30.30.30.30.30.30.30.3
Export Control, yes/nonononononononono
FeaturesSeparate Power Inputs, ShutdownSeparate Power Inputs, ShutdownSeparate Power Inputs, ShutdownSeparate Power Inputs, ShutdownSeparate Power Inputs, ShutdownSeparate Power Inputs, ShutdownSeparate Power Inputs, ShutdownSeparate Power Inputs, Shutdown
Ishutdown, µA0.10.10.10.10.10.10.10.1
Isupply, mA0.030.030.030.030.030.030.030.03
Max Junction Temp, Deg150150150150150150150150
Number of Outputs22222222
Operating Temperature Range, °C0 to 850 to 850 to 850 to 85-40 to 85-40 to 85-40 to 85-40 to 85
Output Current, A0.50.50.50.50.50.50.50.5
Output VoltageAdjAdjAdjAdjAdjAdjAdjAdj
PSRR, dB6565656565656565
RMS Noise, µV2020202020202020
Theta JA38°C/W (FE), 40°C/W (DHC)38°C/W (FE), 40°C/W (DHC)38°C/W (FE), 40°C/W (DHC)38°C/W (FE), 40°C/W (DHC)38°C/W (FE), 40°C/W (DHC)38°C/W (FE), 40°C/W (DHC)38°C/W (FE), 40°C/W (DHC)38°C/W (FE), 40°C/W (DHC)
TypePNPPNPPNPPNPPNPPNPPNPPNP
Vin Max, V2020202020202020
Vin Min, V1.81.81.81.81.81.81.81.8
Vout Max, V2020202020202020
Vout Min, V1.221.221.221.221.221.221.221.22

Packaging

 LT3028EDHC#PBFLT3028EDHC#TRPBFLT3028EFE#PBFLT3028EFE#TRPBFLT3028IDHC#PBFLT3028IDHC#TRPBFLT3028IFE#PBFLT3028IFE#TRPBF
Package5x3 DFN-165x3 DFN-16TSSOP-16TSSOP-165x3 DFN-165x3 DFN-16TSSOP-16TSSOP-16
Package CodeDHCDHCFEFEDHCDHCFEFE

Manufacturer's Classification

LDO Linear Regulators

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