150mA Ultra Low Dropout Positive Voltage Regulator · 150mA Ultra Low Dropout Positive Voltage Regulator General Description • LD2202 is an ultra low dropout positive voltage regulator

Rev. A/LX

LD2202

150mA Ultra Low Dropout Positive Voltage Regulator

TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com

Page 1 of 21 Tel: (800)-TAITRON (800)-824-8766 (661)-257-6060 Fax: (800)-TAITFAX (800)-824-8329 (661)-257-6415


General Description

• LD2202 is an ultra low dropout positive voltage regulator with a dropout of 165mV (typical) at 150mA output current. It provides very low noise, very low standby current (1uA Max) and excellent power supply ripple rejection (PSRR) 75dB at 100Hz in battery power applications, such as handsets and PDAs and RF communication applications.

• LD2202 is available in 5 fixed output voltages: 2.5V, 2.6V, 2.8V,3.0V,3.3V and it is also available in an adjustable version which can set the output voltage with 2 external resisitors. It could provide output volage accuracy within ±1.0% at 25°C and ±2.0% over full temperature range. • LD2202 also features logic compatible enable/shutdown control input, a low power shutdown

mode for extended battery life, build in over current protection, over temperature protection as well as reversed battery protection.

• LD2202 series are available in SOT-89 and SOT-23-5 Packages

Features

• Output Current up to 150mA • Very Low Standby Curent:1uA max • Low Dropout Voltage:165mV (Typical) at 150mA • Low Temperature Coefficient • High Output Accuracy: ±1.0% • Excellent Power Ripple Rejection:75dB at 100Hz and IO=100uA • Over Current Protection (OCP) • Thermal overload Protection • Reverse-battery protection • Logic-controlled Enable function • Wide Operation Junction Temperature: -40°C to 125°C • RoHS Compliance and Halogen Free

Applications

• PC Mother Board • PDAs and Palmtops • LCD Monitor , DVD Video Player and Printer • Telecom Equipment and RF communicators

SOT-89

SOT-23-5


Rev. A/LX

LD2202

www.taitroncomponents.com Page 2 of21

Ordering Information

Pin Configuration

Pin Description

Outline SOT-89 SOT-23-5 Symbol Description

3 1 VIN Input Voltage 2 2 GND Ground

- 3 EN Active high enable input :CMOS or TTL Logic High: enable; Logic Low :shutdown

- 4 BYP/ADJ Bypass capacitor for low noise operation and Adjust output

1 5 VO Output Voltage

Marking information:

SOT-89 1: OUTPUT 2: GND (TAB) 3: INPUT 1: INPUT 2: GND 3: EN 4:ADJ /BYP 5: OUTPUT

SOT-23-5


Rev. A/LX

LD2202


PN Marking Code Outline Temperatue

Range ROHS Halogen Free ROHS Halogen Free

PackingType

SOT-89 -40°C to 125°C LD2202K-3.3-08-TR70 LD2202K-3.3-08-RG70 E22B G22B

LD2202N5-ADJ-08-TR70 LD2202N5-ADJ-08-RG70 E2C G2C

LD2202N5-2.5-08-TR70 LD2202N5-2.5-08-RG70 E2D G2D

LD2202N5-2.6-08-TR70 LD2202N5-2.6-08-RG70 E2E G2E

LD2202N5-2.8-08-TR70 LD2202N5-2.8-08-RG70 E2G G2G

LD2202N5-3.0-08-TR70 LD2202N5-3.0-08-RG70 E2I G2I

SOT-23-5 -40°C to 125°C

LD2202N5-3.3-08-TR70 LD2202N5-3.3-08-RG70 E2L G2L

Tape & Reel

Functional Block Diagram

Absolute Maximum Ratings (Note1)

Pin A(B):A for SOT-23-5 B for SOT-89

Fixed Output Voltage Regulator Adjustable Output Voltage Regulator


Rev. A/LX

LD2202


Symbol Description Ratings Unit

VIN Input Voltage 15 V VEN Enable Input Voltage 15 V

PD Power Dissipation Internally Limited (Thermal Protection) W

TJ Junction Temperature 150 °C TSTG Storage Temperature Range -65 to 150 °C

TLEAD (10 sec) Lead Soldering Temperature 260 °C SOT-89 165 θJA Thermal Resistance (No Heat sink)

(Not2) SOT-23-5 200 °C/W

ESD ESD (Machine model) 200 V

Recommend Operating Ratings (Note1)

Ratings Symbol Description Min Max Unit

VIN Input Voltage 2.5 13.2 V VEN Enable Input Voltage 0 13.2 V TJ Operating Junction Temperature -40 125 °C

Note1: Absolute maximum ratings indicate limits beyond which damage to the device may occur. Recommend operating ratings indicate conditions for which the device is functional, but do not guarantee specific specification limits. For guarantee specification and test conditions, see the Electrical Characteristics, the guarantee specification apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions.

Note2: The Max power dissipation is a function of TJ(max), θJA and TA .The maximum allowable power dissipation at any temperature is PD(Max)=(TJ(max)-TA)/ θJA, Exceeding the maximum allowable power dissipation will result in die temperature and the Regulator will go into thermal shutdown

Electrical Characteristics For LD2202-ADJ (VIN=VO+1V, IO=100uA, CIN=1.0uF,CO=2.2uF, VEN ≥2.0V,TJ=25°C, Bold typeface applies for


Rev. A/LX

LD2202


-40°C≤TJ ≤125°C,unless otherwise specified), (Note3 ) LD2202-ADJ Symbol Description

Min. Type. Max. Unit Test Conditions

- 0.004 0.012∆VLINE Line Regulation - - 0.05 %/V VIN=VO+1V to13.2V

- 0.02 0.2 ∆VLOAD Load Regulation (Note4) - - 0.5

% IO=0.1mA to 150mA

-1 - 1 % ∆VO/VO Output Voltage Accuracy -2 - 2 %

Variation from specified VO

∆VO/∆T Output Voltage Temperature Coefficient (Note5) - 120 - uV/°C

ILIMIT Current Limit 320 550 - mA VO=0V - 0.01 1 VEN≤0.4V (shut down) ISTD Standby Current - 5

uA VEN≤0.18V (shut down)

- 95 130 - - 150

VEN≥2.0V, IO=0uA

- 98 140 - - 160

VEN≥2.0V, IO=100uA

- 350 600 - - 800

VEN≥2.0V, IO=50mA

- 600 1000- - 1500

VEN≥2.0V, IO=100mA

- 1300 1900

IGND Ground Pin Current (Note6)

- - 2500

uA


- 15 50 - - 70

IO=100uA

- 110 150 - - 230

IO=50mA

- 140 250 - - 300

IO=100mA

- 165 275

VD Dropout Voltage (Note7)

- - 350

mV

IO=150mA

eN Output Noise Voltage - 260 - nV/ IO=50mA, CIN=2.2uF,100pF from BYP to GND

PSRR Power Supply Ripple Rejection - 75 - dB IO=100uA, f=100Hz - - 0.4 VIL Enable Input Logic-Low Voltage - - 0.18

V ULDO Shutdown

VIH Enable Input Logic-High Voltage 2.0 - - V ULDO Enable IIL Enable Input Logic-Low Current - 0.01 1 uA VIL≤0.4V


Rev. A/LX

LD2202


- - 2 VIL≤0.18V - 5 20 IIH Enable Input Logic-High Current - - 25

uA VIH≥2.0V

For LD2202-2.5 (VIN=3.5V, IO=100uA,CIN=1.0uF,CO=2.2uF, VEN ≥2.0V,TJ=25°C, Bold typeface applies for -40°C≤TJ ≤125°C,unless otherwise specified), (Note3 )

LD2202-2.5 Symbol Description Min. Type. Max.

Unit Test Conditions

- 1 3 ∆VLINE Line Regulation - - 13 mV VIN=3.5V to13.2V

- 1 5 ∆VLOAD Load Regulation (Note4) - - 13

mV IO=0.1mA to 150mA



∆VO/∆T - 120 - - uV/°C ∆VO/VO ∆T

Output Voltage Temperature Coefficient (Note5) - 48 - - ppm/°C



- 95 130 - - 150

VEN≥2.0V, IO=0uA

- 98 140 - - 160


- 350 600 - - 800

VEN≥2.0V, IO=50mA

- 600 1000- - 1500


- 1300 1900


- - 2500

uA


- 15 50 - - 70

IO=100uA

- 110 150 - - 230

IO=50mA

- 140 250 - - 300

IO=100mA

- 165 275


- - 350

mV

IO=150mA



Rev. A/LX

LD2202



V ULDO Shutdown

VIH Enable Input Logic-High Voltage 2.0 - - V ULDO Enable - 0.01 1 VIL≤0.4V IIL Enable Input Logic-Low Current - - 2

uA VIL≤0.18V

- 5 20 IIH Enable Input Logic-High Current - - 25

uA VIH≥2.0V









∆VO/∆T - 120 - - uV/°C ∆VO/VO ∆T

Output Voltage Temperature Coefficient (Note5) - 46 - - ppm/°C



- 95 130 - - 150

VEN≥2.0V, IO=0uA

- 98 140 - - 160


- 350 600 - - 800

VEN≥2.0V, IO=50mA

- 600 1000- - 1500


- 1300 1900


- - 2500

uA


VD Dropout Voltage (Note7) - 15 50 mV IO=100uA


Rev. A/LX

LD2202


- - 70 - 110 150 - - 230

IO=50mA

- 140 250 - - 300

IO=100mA

- 165 275 - - 350

IO=150mA



V ULDO Shutdown


uA VIL≤0.18V


uA VIH≥2.0V









∆VO/∆T - 120 - - uV/°C ∆VO/VO ∆T

Output Voltage Temperature Coefficient (Note5) - 42.8 - - ppm/°C



IGND Ground Pin Current (Note6) - 95 130 uA VEN≥2.0V, IO=0uA


Rev. A/LX

LD2202


- - 150 - 98 140 - - 160


- 350 600 - - 800

VEN≥2.0V, IO=50mA

- 600 1000- - 1500


- 1300 1900- - 2500


- 15 50 - - 70

IO=100uA

- 110 150 - - 230

IO=50mA

- 140 250 - - 300

IO=100mA

- 165 275


- - 350

mV

IO=150mA



V ULDO Shutdown


uA VIL≤0.18V


uA VIH≥2.0V









∆VO/∆T Output Voltage Temperature - 120 - - uV/°C


Rev. A/LX

LD2202


∆VO/VO ∆T

Coefficient (Note5) - 40 - - ppm/°C



- 95 130 - - 150

VEN≥2.0V, IO=0uA

- 98 140 - - 160


- 350 600 - - 800

VEN≥2.0V, IO=50mA

- 600 1000- - 1500


- 1300 1900


- - 2500

uA


- 15 50 - - 70

IO=100uA

- 110 150 - - 230

IO=50mA

- 140 250 - - 300

IO=100mA

- 165 275


- - 350

mV

IO=150mA



V ULDO Shutdown


uA VIL≤0.18V


uA VIH≥2.0V

For LD2202-3.3(VIN=4.3V, IO=100uA,CIN=1.0uF,CO=2.2uF, VEN ≥2.0V,TJ=25°C, Bold Typeface applies for


Rev. A/LX

LD2202


-40°C≤TJ ≤125°C,unless otherwise specified), (Note3 ) LD2202-3.3 Symbol Description

Min. Type. Max. Unit Test Conditions






∆VO/∆T - 120 - - uV/°C ∆VO/VO ∆T

Output Voltage Temperature Coefficient (Note5) - 36.3 - - ppm/°C



- 95 130 - - 150

VEN≥2.0V, IO=0uA

- 98 140 - - 160


- 350 600 - - 800

VEN≥2.0V, IO=50mA

- 600 1000- - 1500


- 1300 1900


- - 2500

uA


- 15 50 - - 70

IO=100uA

- 110 150 - - 230

IO=50mA

- 140 250 - - 300

IO=100mA

- 165 275

VD Dropout Voltage(Note 7)

- - 350

mV

IO=150mA



V ULDO Shutdown

VIH Enable Input Logic-High Voltage 2.0 - - V ULDO Enable


Rev. A/LX

LD2202


- 0.01 1 VIL≤0.4V IIL Enable Input Logic-Low Current - - 2

uA VIL≤0.18V


uA VIH≥2.0V

Note3:Specification in Bold typeface are limited to -40°C≤TJ ≤125°C.Limited over temperature are guaranteed by design, but not tested in production. Note4:Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load range from 0.1mA to 150mA.Changes in output voltage due to heating effects are covered by the thermal regulation specification. Note5: Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range. Note6:Ground Pin current is the regulator quiescent current plus pass transistor base current.The total current drawn from the supply is the sum of the load current plus the ground pin current. Note7:Dropout voltage is defined as the input to output differential at which the output voltage drop 1.0% (TJ=25°C) or 2.0% (-40°C≤TJ ≤125°C) below its nominal value measured at 1V differential.

Typical Characteristics Curves

Out

put

Vol

tage

VO

(V)

Fig.1 VO - TJ Fig.2 VD - TJ

Dro

pout

Vol

tage

VD (m

V)

Operation Junction Temperature TJ (°C) Operation Junction Temperature TJ (°C)


Rev. A/LX

LD2202


Ena

ble

Cur

rent

IEN (u

A)

Fig-3 ∆VLOAD-TJ Fig-4 VREF-TJ

Output Current IO (mA)

Fig.3 IGND - IO

Gro

und

Pin

Cur

rent

(mA

)

Operation Junction Temperature TJ (°C)

Fig.4 IGND - TJ

Gro

und

Pin

Cur

rent

(uA

) E

nabl

e V

olta

ge V

EN (V

)

Fig.5 IEN - TJ

Operation Junction Temperature TJ (°C) Operation Junction Temperature TJ (°C)

Fig.6 VEN - TJ


Rev. A/LX

LD2202


Out

put N

oise

eN

(uV

rms

)

Bypass Capacitor CBYP (pF)

Ambient Temperature TA (°C)

Pow

er D

issi

patio

n P

D (W

)

Fig.7 eN - CBYP

Out

put N

oise

eN

(uV

/

)

Fig.8 eN - f

Frequency f (Hz)

Ambient Temperature TA (°C)

Fig.9 PD - TA Fig.10 PD - TA

Pow

er D

issi

patio

n P

D (W

)


Rev. A/LX

LD2202


ESR

(Ω)

Pow

er S

uppl

y R

ejec

tion

Rat

io

PSR

R (d

B)


Fig.14 PSRR - f

Frequency f (Hz)

Fig.11 ESR - IO


ES

R (Ω

)

Fig.12 ESR - IO

Fig.13 ESR - IO

ESR

(Ω)



Rev. A/LX

LD2202


∆VL

INE

(mV

)

Time (us)

VIN

(V

)

∆VL

OAD

(mV

) IO

(mA)

VIN=3.8V IO=5mA to100mA CIN=1uF,CO=2.2uF CBYP =100pF,VEN=2V

VIN=3.8V to 4.8VVEN=2V IO=100uA CBYP=100pF CO=10uF

Fig.16 Line Transient Response Fig.15 Load Transient Response

Time (us)

Fig.17 VEN (on) - VO

VIN=3.8V VEN=0 to 2V IO=30mA CBYP=open CO=2.2uF

VEN

(V

) V

O (V

)

Time (us)


Rev. A/LX

LD2202


Typical Application (Note8)

Note8:Dropuout voltage is 165mV when TJ=25°C.In order to obtain a normal output voltage,VO+0.165V is the minimum input voltage which will result in a low PSRR, imposing a bad influence on system. Therefore, the recommended input voltage is VO+0.5V to 13.2V.For LD2202-2.8 Version, Its input voltage can be set from 3.3V (VO+0.5V) to 13.2V.For the Adj version, any value from VO+0.5V to 13.2V is available.R1 and R2 must be correctly selected when setting the output voltage. For example, if 3.0V output voltage is required,R1and R2 Can be set to 10KΩ an 14 KΩ respectively. For Adj version, we recommend 2.3V as minimum output voltage.


Rev. A/LX

LD2202


Application Notes

Input Capacitor A1uF minimum capacitor is recommended to be place between VIN and GND Output Capacitor Bypass capacitor is connected to the internal voltage reference. A 100pF capacitor connected from BYP to GND ,make this reference quiet, resulting in a significant reduction in output noise, but the ESR stable area will be narrowed. The start-up speed of the LD2202 is inversely proportional to the value of reference bypass capacitor. In some cases, if output noise is not a major concern and rapid turn-on is necessary, omit CBYP and BYP open. Power Dissipation Thermal shutdown may occur if exceeding the maximum power dissipation conditions, the junction temperature must be within the range specified under absolute maximum ratings to avoid thermal shutdown. To determine if the power dissipated in the regulator reaches the maximum power dissipation (Fig9 and Fig10), the formula is:TJ=TA+PD*θJA; PD=(VIN-VO)*IO+VIN*IGND. Where: TJ≤TJ (max) is absolute maximum rating for the junction temperature; VIN*IGND can be ignored due to the small value. TJ (max) is 150°C, θJA is 200°C/W for SOT-23-5 package and 165°C/W for SOT-89 package, no heat-sink is required since the package alone will dissipate enough heat to satisfy these requirements unless the calculated value for power dissipation exceeds the limit. Example: For 2.8V version packaged in SOT-23-5, IO=150mA,TA=30°C, VIN(max) =(150°C-30°C)/(0.15A*200°C/W)+2.8V=6.8V, therefore ,for good performance, please make sure that input voltage is less than 6.8V without heat-sink when TA=30°C,


Rev. A/LX

LD2202


Dimensions in mm (inch)

SOT-89


Rev. A/LX

LD2202


SOT-23-5


Rev. A/LX

LD2202


How to contact us:

US HEADQUARTERS 28040 WEST HARRISON PARKAWAY, VALENCIA, CA 91355-4162

Tel: (800) TAITRON (800) 824-8766 (661) 257-6060 Fax: (800) TAITFAX (800) 824-8329 (661) 257-6415

Email: [email protected] Http://www.taitroncomponents.com

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42970 MEXICO Tel: +52-55-5560-1519 Fax: +52-55-5560-2190

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Tel: +55-11-5574-7949 Fax: +55-11-5572-0052

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Tel: +86-21-5424-9942 Fax: +86-21-5424-9931

Documents

150mA Ultra Low Dropout Positive Voltage Regulator · 150mA Ultra Low Dropout Positive Voltage Regulator General Description • LD2202 is an ultra low dropout positive voltage regulator