Anpec APL5325BI-TRL Schematic

APL5325

Adjustable Low Dropout 300mA Linear Regulator

Features

• Wide Operating Voltage: 3~6V

• Low Dropout Voltage:

300mV(Typical) @ 300mA

• Guaranteed 300mA Output Current

• Adjustable Output Voltage: 0.8~5.5V

• Current-Limit Protection with Foldback Current

• Over-Temperature Protection

• Stable with Low ESR Ceramic Capacitor

• SOT-23-5 Package

• Lead Free and Green Devices Available

(RoHS Compliant)

Applications

• Cellular Phones

• Portable and Battery-Powered Equipment

General Description

The APL5325 is a P-channel low dropout linear regulator which needs only one input voltage from 3 to 6V, and delivers current up to 300mA to set output voltage. It also can work with low ESR ceramic capacitors and is ideal for using in the battery-powered applications such as notebook computers and cellular phones. Typical dropout voltage is only 300mV at 300mA loading. Current limit with current foldback and thermal shutdown functions protect the device against c urrent over-loads and over temperature. The APL5325 is available in a SOT23-5 package.

Pin Configuration

SHDN 1

GND 2

VIN 3

SOT-23-5

5 SET

4 VOUT

• Notebook and Personal Computers

Simplified Application Circuit

V

IN

C

IN

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders.

Copyright  ANPEC Electronics Corp. Rev. A.1 - Nov., 2008

3 1

APL5325

VIN

SHDN

GND

2

VOUT

SET

4

5

V

OUT

C

OUT

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APL5325

Ordering and Marking Information

APL5325

Assembly Material Handling Code Temperature Range Package Code

Package Code B: SOT-23-5 Operating Ambient Temperature Range I : -40 to 85 oC Handling Code TR : Tape & Reel Assembly Material L : Lead Free Device G : Halogen and Lead Free Device

APL5325 B :

25RX XXXXXX - Date Code

Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020C for MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant) and halogen free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by weight).

Absolute Maximum Ratings (Note 1)

Symbol Parameter Rating Unit

V

IN

V

SHDN

P

D

T

J

T

STG

T

SDR

Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

VIN Supply Voltage (VIN to GND) -0.3 ~ 6.5 V SHDN Input Voltage (SHDN to GND) -0.3 ~ 6.5 V Power Dissipation Internally Limited W Junction Temperature -40 ~ 150 Storage Temperature -65 ~ 150 Maximum Lead Soldering Temperature, 10 Seconds 260

o

C

o

C

o

C

Thermal Characteristics

Symbol Parameter Typical Value Unit

θJA

θJC

Thermal Resistance-Junction to Ambient

Thermal Resistance-Junction to Case

Note 2 : θJA is measured with the component mounted on a high effective thermal conductivity test board in free air.

(Note 2)

SOT-23-5

240

130

Recommended Operating Conditions

Symbol Parameter Range Unit

VIN VIN Supply Voltage 3 ~ 6 V

V

Output Voltage 0.8 ~ 5.5 V

OUT

I

VOUT Output Current 0 ~ 300 mA

OUT

CIN Input Capacitor 0.22 ~ 100

C

Output Capacitor 1.5 ~ 100

OUT

TJ Junction Temperature -40 ~ 125

Copyright  ANPEC Electronics Corp. Rev. A.1 - Nov., 2008

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o

C/W

o

C/W

µF µF

o

C

APL5325

Electrical Characteristics

Unless otherwise specified, these specifications apply over VIN = V Typical values are at TA = 25oC.

OUT

+1V, I

=0~300mA, CIN = 1µF, C

OUT

= 2.2µF, TA = -40 to 85oC.

OUT

Symbol

Parameter Test Conditions

APL5325

Min. Typ. Max.

VIN Input Voltage 3 - 6 V

V

Output Voltage Range 0.8 - 5.5 V

OUT

IQ Quiescent Current I

V

Reference Voltage Measured on SET, VIN=3V, I

REF

Output Voltage Accuracy I

REG

V

LINE

LOAD

DROP

Line Regulation Load Regulation

Dropout Voltage

PSRR Power Supply Ripple Rejection Ratio f = 10kHz, I

Noise f = 80Hz to 100kHz, I

I

Current Limit 450 550 - mA

LIMIT

I

SHORT

Foldback Current V

=10mA ~300mA - 135 160

OUT

=10mA

OUT

=10mA -2 - +2 %

OUT

∆V

%/∆VIN, I

OUT

∆V

%/∆I

OUT

V

= 2.5V, I

OUT

V

= 3.3V, I

OUT

= 0V - 80 - mA

OUT

=10mA

OUT

= 300mA - 500 650

OUT

= 300mA - 300 400

OUT

= 300mA - 45 - dB

OUT

= 300mA - 160 -

OUT

- 0.8 - V

-0.06

- +0.06 %/V

-0.2 - +0.2 %/A

SHDN Input Voltage High 1.6 - SHDN Input Voltage Low

- - 0.4

Unit

µA

mV

µV

RMS

V

V Shutdown VIN Supply Current SHDN = Low, V

Discharge MOSFET R

OUT

SHDN = Low - 60 -

DS(ON)

= 6V - 0.1 1

IN

SHDN Pull Low Resistance - 3 Over Temperature Threshold - 160 -

Over Temperature Hysteresis SET Input Bias Current

- 40 V

=0.8V -100 - 100 nA

SET

Copyright  ANPEC Electronics Corp. Rev. A.1 - Nov., 2008

Ω

µA

MΩ

o

C

o

C

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APL5325

Typical Operating Characteristics

Quiescent Current vs. Supply Voltage Quiescent Current vs. Junction Temperature

160

I

OUT

= 0mV

(µA)

140 120

Q

100

138

136

(µA)

Q

134

80 60 40

Quiescent Current, I

20

0

0 1 2 3 4 5 6 7

Supply Voltage, VIN (V)

PSRR vs. Frequency

0

VIN=3.3V, V

-10

C

=2.2µF,I

OUT

-20

-30

-40

-50

PSRR(dB)

-60

-70

-80 1000 10000 100000

=1.2V,

OUT

=300mA

OUT

Frequency(Hz)

132

130

Quiescent Current, I

128

126

-50 -25 0 25 50 75 100 125 Junction Temperature, TJ (oC)

Dropout Voltage vs. Output Current

400

V

=3.3V

350

(mV)

300

DROP

250 200 150 100

Dropout Voltage, V

OUT

TJ=125oC

TJ=75oC

50

TJ=25oC

0

0 100 200 300

Output Current, I

OUT

TJ=-50oC

(mA)

Dropout Voltage vs. Output Current

700

V

=2.5V

600

(mV)

500

DROP

400 300 200

Dropout Voltage, V

100

Copyright  ANPEC Electronics Corp. Rev. A.1 - Nov., 2008

OUT

TJ=75oC

TJ=125oC

TJ=25oC

0

0 100 200 300

Output Current, I

OUT

TJ=-50oC

(mA)

Current Limit vs. Junction Temperature

600

VIN=5V

550

(mA)

LIMIT

500

VIN=3.3V

450

Current Limit, I

400

-50 -25 0 25 50 75 100 125

Junction Temperature, TJ(oC)

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APL5325

Typical Operating Characteristics (Cont.)

Loop Gain vs. Frequency

50 40 30 20 10

0

-10

Loop Gain (dB)

-20

-30

-40

VIN=3.3V, V CIN=1µF, C

I

=300mA

OUT

=1.2V,

=2.2µF

I

OUT

1000 10000 100000 1000000

Frequency (Hz)

=100mA

Phase vs. Frequency

160 140 120 100

80 60

Phase (degree)

40 20

0

VIN=3.3V, V CIN=1µF, C

I

OUT

=1.2V,

=2.2µF

=100mA

I

OUT

=300mA

1000 10000 100000 1000000

Frequency (Hz)

Copyright  ANPEC Electronics Corp. Rev. A.1 - Nov., 2008

www.anpec.com.tw5

Anpec APL5325BI-TRL Schematic [ru]