LP3965

現行

具感測和啟用功能的 1.5-A、低壓降電壓穩壓器

立即訂購

產品規格表

document-pdfAcrobat LP3962/LP3965 1.5A Fast Ultra Low Dropout Linear Regulators datasheet (Rev. H) (英文)

LP3965

現行

產品規格表

立即訂購

產品詳細資料

Output options

Adjustable Output, Fixed Output

Iout (max) (A)

1.5

Vin (max) (V)

7

Vin (min) (V)

2.5

Vout (max) (V)

5

Vout (min) (V)

1.215

Fixed output options (V)

1.8, 2.5, 3.3

Rating

Catalog

Noise (µVrms)

150

PSRR at 100 KHz (dB)

32

Iq (typ) (mA)

4

Thermal resistance θJA (°C/W)

50

Load capacitance (min) (µF)

33

Regulated outputs (#)

1

Features

Enable, Power good

Accuracy (%)

3

Dropout voltage (Vdo) (typ) (mV)

380

Operating temperature range (°C)

-40 to 125

Output options

Adjustable Output, Fixed Output

Iout (max) (A)

1.5

Vin (max) (V)

7

Vin (min) (V)

2.5

Vout (max) (V)

5

Vout (min) (V)

1.215

Fixed output options (V)

1.8, 2.5, 3.3

Rating

Catalog

Noise (µVrms)

150

PSRR at 100 KHz (dB)

32

Iq (typ) (mA)

4

Thermal resistance θJA (°C/W)

50

Load capacitance (min) (µF)

33

Regulated outputs (#)

1

Features

Enable, Power good

Accuracy (%)

3

Dropout voltage (Vdo) (typ) (mV)

380

Operating temperature range (°C)

-40 to 125

SOT-223 (NDC)

5

45.24 mm² 6.5 x 6.96

TO-220 (NDH)

5

86.0552 mm² 10.16 x 8.47

TO-263 (KTT)

5

154.8384 mm² 10.16 x 15.24

Ultra Low Dropout Voltage
Low Ground Pin Current
Load Regulation of 0.04%
15µA Quiescent Current in Shutdown Mode
Specified Output Current of 1.5A DC
Available in SOT-223,SFM/TO-263 and TO-220 Packages
Output Voltage Accuracy ± 1.5%
Error Flag Indicates Output Status (LP3962)
Sense Option Improves Better Load Regulation (LP3965)
Extremely Low Output Capacitor Requirements
Overtemperature/Overcurrent Protection
−40°C to +125°C Junction Temperature Range

All trademarks are the property of their respective owners.

Ultra Low Dropout Voltage
Low Ground Pin Current
Load Regulation of 0.04%
15µA Quiescent Current in Shutdown Mode
Specified Output Current of 1.5A DC
Available in SOT-223,SFM/TO-263 and TO-220 Packages
Output Voltage Accuracy ± 1.5%
Error Flag Indicates Output Status (LP3962)
Sense Option Improves Better Load Regulation (LP3965)
Extremely Low Output Capacitor Requirements
Overtemperature/Overcurrent Protection
−40°C to +125°C Junction Temperature Range

All trademarks are the property of their respective owners.

The LP3962/LP3965 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V input supply. Wide range of preset output voltage options are available. These ultra low dropout linear regulators respond very fast to step changes in load which makes them suitable for low voltage microprocessor applications. The LP3962/LP3965 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3962/LP3965 to operate under extremely low dropout conditions.

Dropout Voltage: Ultra low dropout voltage; typically 38mV at 150mA load current and 380mV at 1.5A load current.

Ground Pin Current: Typically 5mA at 1.5A load current.

Shutdown Mode: Typically 15µA quiescent current when the shutdown pin is pulled low.

Error Flag: Error flag goes low when the output voltage drops 10% below nominal value (for LP3962).

SENSE: Sense pin improves regulation at remote loads. (For LP3965)

Precision Output Voltage: Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3965), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).

The LP3962/LP3965 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V input supply. Wide range of preset output voltage options are available. These ultra low dropout linear regulators respond very fast to step changes in load which makes them suitable for low voltage microprocessor applications. The LP3962/LP3965 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3962/LP3965 to operate under extremely low dropout conditions.

Dropout Voltage: Ultra low dropout voltage; typically 38mV at 150mA load current and 380mV at 1.5A load current.

Ground Pin Current: Typically 5mA at 1.5A load current.

Shutdown Mode: Typically 15µA quiescent current when the shutdown pin is pulled low.

Error Flag: Error flag goes low when the output voltage drops 10% below nominal value (for LP3962).

SENSE: Sense pin improves regulation at remote loads. (For LP3965)

Precision Output Voltage: Multiple output voltage options are available ranging from 1.2V to 5.0V and adjustable (LP3965), with a specified accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).

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