LP38502-ADJ

Name: LP38502-ADJ
Brand: TI
SKU: LP38502-ADJ
Price: 1.05 USD

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1.5-A, adjustable ultra-low-dropout voltage regulator with enable

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Data sheet

document-pdfAcrobat LP3850x-ADJ, LP3850xA-ADJ 1.5-A Flexcap Low-Dropout Linear Regulator for 2.7-V to 5.5-V Inputs datasheet (Rev. H) PDF | HTML

LP38502-ADJ

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Data sheet

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Product details

Output options

Adjustable Output

Iout (max) (A)

1.5

Vin (max) (V)

5.5

Vin (min) (V)

2.7

Vout (max) (V)

5

Vout (min) (V)

0.6

Rating

Catalog

Noise (µVrms)

100

PSRR at 100 KHz (dB)

25

Iq (typ) (mA)

2

Thermal resistance θJA (°C/W)

33

Load capacitance (min) (µF)

10

Regulated outputs (#)

1

Features

Enable

Accuracy (%)

2

Dropout voltage (Vdo) (typ) (mV)

220

Operating temperature range (°C)

-40 to 125

Output options

Adjustable Output

Iout (max) (A)

1.5

Vin (max) (V)

5.5

Vin (min) (V)

2.7

Vout (max) (V)

5

Vout (min) (V)

0.6

Rating

Catalog

Noise (µVrms)

100

PSRR at 100 KHz (dB)

25

Iq (typ) (mA)

2

Thermal resistance θJA (°C/W)

33

Load capacitance (min) (µF)

10

Regulated outputs (#)

1

Features

Enable

Accuracy (%)

2

Dropout voltage (Vdo) (typ) (mV)

220

Operating temperature range (°C)

-40 to 125

TO-263 (KTT)

5

154.8384 mm² 10.16 x 15.24

TO-263 (NDQ)

5

142.3416 mm² 10.16 x 14.01

WSON (NGS)

8

7.5 mm² 3 x 2.5

Input Voltage: 2.7 V to 5.5 V
Adjustable Output Voltage: 0.6 V to 5 V
FlexCap: Stable with Ceramic, Tantalum, or
Aluminum Capacitors
Stable with 10-µF Input and Output Capacitors
Low Ground-Pin Current
25-nA Quiescent Current in Shutdown Mode
Ensured Output Current of 1.5 A
Ensured V_ADJ Accuracy of ±1.5% at 25°C (A
Grade)
Ensured Accuracy of ±3.5% at 25°C (STD)
Overtemperature and Overcurrent Protection
ENABLE Pin (LP38502)

Input Voltage: 2.7 V to 5.5 V
Adjustable Output Voltage: 0.6 V to 5 V
FlexCap: Stable with Ceramic, Tantalum, or
Aluminum Capacitors
Stable with 10-µF Input and Output Capacitors
Low Ground-Pin Current
25-nA Quiescent Current in Shutdown Mode
Ensured Output Current of 1.5 A
Ensured V_ADJ Accuracy of ±1.5% at 25°C (A
Grade)
Ensured Accuracy of ±3.5% at 25°C (STD)
Overtemperature and Overcurrent Protection
ENABLE Pin (LP38502)

TI’s FlexCap low-dropout (LDO) linear regulators feature unique compensation that allow use of any type of output capacitor with no limits on minimum or maximum equivalent series resistance (ESR). The LP38500 and LP38502 series of LDOs operates from a 2.7-V to 5.5-V input supply. These ultra-low-dropout linear regulators respond very quickly to step changes in load, making them suitable for low-voltage microprocessor applications. Developed on a CMOS process (utilizing a PMOS pass transistor) the LP38500-ADJ and LP38502-ADJ have low quiescent currents that changes little with load current.

GND Pin Current: Typically 2 mA at 1.5-A load current.
Disable Mode: Typically 25-nA quiescent current when the EN pin is pulled low. (LP38502-ADJ)
Simplified Compensation: Stable with any type of output capacitor, regardless of ESR.
Precision Output: grade versions available with 1.5% V_ADJ tolerance (25°C) and 3% over line, load, and temperature.

TI’s FlexCap low-dropout (LDO) linear regulators feature unique compensation that allow use of any type of output capacitor with no limits on minimum or maximum equivalent series resistance (ESR). The LP38500 and LP38502 series of LDOs operates from a 2.7-V to 5.5-V input supply. These ultra-low-dropout linear regulators respond very quickly to step changes in load, making them suitable for low-voltage microprocessor applications. Developed on a CMOS process (utilizing a PMOS pass transistor) the LP38500-ADJ and LP38502-ADJ have low quiescent currents that changes little with load current.

GND Pin Current: Typically 2 mA at 1.5-A load current.
Disable Mode: Typically 25-nA quiescent current when the EN pin is pulled low. (LP38502-ADJ)
Simplified Compensation: Stable with any type of output capacitor, regardless of ESR.
Precision Output: grade versions available with 1.5% V_ADJ tolerance (25°C) and 3% over line, load, and temperature.

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Technical documentation

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	Type	Title		Date
*	Data sheet	LP3850x-ADJ, LP3850xA-ADJ 1.5-A Flexcap Low-Dropout Linear Regulator for 2.7-V to 5.5-V Inputs datasheet (Rev. H)	PDF \| HTML	22 Sep 2015
	EVM User's guide	AN-1782 LP38502TJ-ADJ Evaluation Board (Rev. A)		24 May 2013
	EVM User's guide	AN-1758 LP38502SD-ADJ Evaluation Board (Rev. B)		24 Apr 2013
	EVM User's guide	AN-1759 LP38502TS-ADJ Evaluation Board (Rev. B)		24 Apr 2013
	EVM User's guide	AN-1829 LP38502ASD-ADJ Evaluation Board (Rev. A)		24 Apr 2013
	EVM User's guide	AN-1831 LP38502ATJ-ADJ Evaluation Board (Rev. A)		24 Apr 2013
	Application note	AN-2219 Precision Current Limiting with the LMP8646 and LP38501 (Rev. A)		24 Apr 2013

Design & development

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Evaluation board

LP38502SD-ADJEV — 1.5A FlexCap Low Dropout Linear Regulator for 2.7V to 5.5V Inputs Evaluation Board (LLP8)

This Evaluation Board highlights the LP38502SD-ADJ, a 1.5A Low-Dropout (LDO) linear regulator in the LLP-8 package which has an adjustable output voltage (set by external resistors).

Changing the Output Voltage

The resistors R1 and R2 set the output voltage. The equation to determine output voltage (...)

User guide: PDF