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RT9013-15GB中文资料

DS9013-05 August 2007

https://www.wendangku.net/doc/4513305177.html,

Pin Configurations

Applications

CDMA/GSM Cellular Handsets Portable Information Appliances

Laptop, Palmtops, Notebook Computers Hand-Held Instruments

Mini PCI & PCI-Express Cards PCMCIA & New Cards

500mA, Low Dropout, Low Noise Ultra-Fast Without Bypass Capacitor CMOS LDO Regulator

Ordering Information

Marking Information

For marking information, contact our sales representative directly or through a Richtek distributor located in your area, otherwise visit our website for detail.

General Description

The RT9013 is a high-performance, 500mA LDO regulator,offering extremely high PSRR and ultra-low dropout. Ideal for portable RF and wireless applications with demanding performance and space requirements.

The RT9013 quiescent current as low as 25μA, further prolonging the battery life. The RT9013 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices.

The RT9013 consumes typical 0.7μA in shutdown mode and has fast turn-on time less than 40μs. The other features include ultra-low dropout voltage, high output accuracy,current limiting protection, and high ripple rejection ratio.Available in the SOT-23-5, SC-70-5 and WDFN-6L 2x2package.

(TOP VIEW)

WDFN-6L 2x2

Features

Wide Operating Voltage Ranges : 2.2V to 5.5V Low Dropout : 250mV at 500mA Ultra-Low-Noise for RF Application

Ultra-Fast Response in Line/Load Transient Current Limiting Protection Thermal Shutdown Protection

High Power Supply Rejection Ratio

Output Only 1μF Capacitor Required for Stability TTL-Logic-Controlled Shutdown Input

RoHS Compliant and 100% Lead (Pb)-Free

SOT-23-5 / SC-70-5

RT9013

12 : 1.2V 13 : 1.3V 15 : 1.5V 16 : 1.6V :

32 : 3.2V 33 : 3.3V 1B : 1.25V 1H : 1.85V 2H : 2.85V

Note :

Richtek Pb-free and Green products are :

`RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020.

`Suitable for use in SnPb or Pb-free soldering processes.`100% matte tin (Sn) plating.

EN GND NC NC VOUT

VIN

GND VIN EN

DS9013-05 August 2007

https://www.wendangku.net/doc/4513305177.html, Typical Application Circuit

Functional Pin Description

Function Block Diagram

V OUT

VIN

Absolute Maximum Ratings (Note 1)

Supply Input Voltage------------------------------------------------------------------------------------------------------6V

EN Input Voltage-----------------------------------------------------------------------------------------------------------6V

Power Dissipation, P D @ T A= 25°C

SOT-23-5--------------------------------------------------------------------------------------------------------------------0.4W

SC-70-5----------------------------------------------------------------------------------------------------------------------0.3W

WDFN-6L 2x2--------------------------------------------------------------------------------------------------------------0.606W

Package Thermal Resistance (Note 4)

SOT-23-5, θJA---------------------------------------------------------------------------------------------------------------250°C/W

SC-70-5, θJA----------------------------------------------------------------------------------------------------------------333°C/W WDFN-6L 2x2, θJA---------------------------------------------------------------------------------------------------------165°C/W WDFN-6L 2x2, θJC---------------------------------------------------------------------------------------------------------20°C/W

Lead Temperature (Soldering, 10 sec.)-------------------------------------------------------------------------------260°C

Junction T emperature-----------------------------------------------------------------------------------------------------125°C

Storage T emperature Range--------------------------------------------------------------------------------------------?65°C to 150°C ESD Susceptibility (Note 2)

HBM--------------------------------------------------------------------------------------------------------------------------2kV

MM----------------------------------------------------------------------------------------------------------------------------200V Recommended Operating Conditions (Note 3)

Supply Input Voltage------------------------------------------------------------------------------------------------------2.2V to 5.5V

Junction T emperature Range--------------------------------------------------------------------------------------------?40°C to 125°C Ambient T emperature Range--------------------------------------------------------------------------------------------?40°C to 85°C Electrical Characteristics

(V= V + 0.5V, V= V, C= C= 1μF (Ceramic), T= 25°C unless otherwise specified)

To be continued

DS9013-05 August https://www.wendangku.net/doc/4513305177.html,

DS9013-05 August 2007

https://www.wendangku.net/doc/4513305177.html, Note 1. Stresses listed as the above “Absolute Maximum Ratings ” may cause permanent damage to the device. These are for

stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may remain possibility to affect device reliability.

Note 2. Devices are ESD sensitive. Handling precaution recommended.Note 3. The device is not guaranteed to function outside its operating conditions.

Note 4. θJA is measured in the natural convection at T A = 25°C on a low effective thermal conductivity test board of JEDEC 51-3

thermal measurement standard. The case position of θJC is on the exposed pad for the WDFN-6L 2x2 packages.

Note 5. Quiescent, or ground current, is the difference between input and output currents. It is defined by I Q = I IN - I OUT under no

load condition (I OUT = 0mA). The total current drawn from the supply is the sum of the load current plus the ground pin current.

Note 6. The dropout voltage is defined as V IN -V OUT , which is measured when V OUT is V OUT(NORMAL) - 100mV.

Note 7. Regulation is measured at constant junction temperature by using a 2ms current pulse. Devices are tested for load

regulation in the load range from 10mA to 500mA.

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Typical Operating Characteristics

Output Voltage vs. Temperature

1.40

1.421.441.461.481.501.521.541.56

1.581.60-50

-25

100

125

Temperature O u t p u t V o l t a g e (V )

(°C)(C IN = C OUT = 1μ/X7R, unless otherwise specified)

Dropout Voltage vs. Load Current

050100150

200250

300

3500

100150200250300350400450500

Load Current (mA)D r o p o u t V o l t a g

e (m V )

V IN = 2.5V, I LOAD = 75mA Start Up

Time (5μs/Div)

E N P i n V o l t a g e (V )

O u t p u t V o l t a g e (V )

420

1.00.50

RT9013-15PQW

V IN = 2.5V, I LOAD = 50mA EN Pin Shutdown Response

E N P i n V o l t a g e (V )

Time (100μs/Div)O u t p u t V o l t a g e (V )

420

210

RT9013-15PQW Quiescent Current vs. Temperature

121416182022242628

30-50-250255075100125

Temperature Q u i e s c e n t C u r r e n t (u A )

(°C)

Dropout Voltage vs. Load Current

50100150200250300

350

050100150200250300350400450500

Load Current (mA)

D r o p o u t V o l t a g e (m V )

DS9013-05 August 2007

https://www.wendangku.net/doc/4513305177.html, V IN = 2.5V, I LOAD

= 10mA to 100mA

L o a d C u r r e n t (m A )

Time (100μs/Div)O u t p u t V o l t a g e D e v i a t i o n (m V )

100500

500-50

RT9013-15PQW

V IN = 2.5V, I LOAD = 10mA to 300mA

L o a d C u r r e n t (m A )

Time (100μs/Div)

O u t p u t V o l t a g e D e v i a t i o n (m V )

4002000

500-50

RT9013-15PQW

V IN = 2.6V to 3.6V, I LOAD = 10mA

I n p u t V o l t a

g e D e v i a t i o n (V )

Time (100μs/Div)O u t p u t V o l t a g e D e v i a t i o n (m V )

3.62.6

200-20

RT9013-15PQW

I n p u t V o l t a g e D

e v i a t i o n (V )Time (100μs/Div)

O u t p u t V o l t a g e D e v i a

t i o n (m V )

3.62.6

200-20

V IN = 2.6V to 3.6V, I LOAD = 100mA

RT9013-15PQW

Time (10ms/Div)

V IN = 3.0V (By Battery), No Load Noise

Time (10ms/Div)N o i s e (μV /D i v )

300

2001000-100-200-300

RT9013-15PQW

DS9013-05 August 2007

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PSRR

-70

-60-50-40-30-20-10

0102010

100

1000

10000

100000

1000000

Frequency (Hz)

P S R R (d B )

Time (10ms/Div)

DS9013-05 August 2007

https://www.wendangku.net/doc/4513305177.html, Applications Information

Like any low-dropout regulator, the external capacitors used with the RT9013 must be carefully selected for regulator stability and performance. Using a capacitor whose value is > 1μF on the RT9013 input and the amount of capacitance can be increased without limit. The input capacitor must be located a distance of not more than 0.5 inch from the input pin of the IC and returned to a clean analog ground.Any good quality ceramic can be used for this capacitor.The capacitor with larger value and lower ESR (equivalent series resistance) provides better PSRR and line-transient response.

The output capacitor must meet both requirements for minimum amount of capacitance and ESR in all LDOs application. The RT9013 is designed specifically to work with low ESR ceramic output capacitor in space-saving and performance consideration. Using a ceramic capacitor whose value is at least 1μF with ESR is > 20m Ω on the RT9013 output ensures stability. The RT9013 still works well with output capacitor of other types due to the wide stable ESR range. Figure 1. shows the curves of allowable ESR range as a function of load current for various output capacitor values. Output capacitor of larger capacitance can reduce noise and improve load transient response,stability, and PSRR. The output capacitor should be located not more than 0.5 inch from the VOUT pin of the RT9013and returned to a clean analog ground.

Figure 1

Enable

The RT9013 goes into sleep mode when the EN pin is in a logic low condition. During this condit ion, the RT9013 has an EN pin to turn on or turn off regulator, When the EN pin is logic hight, the regulator will be turned on. The supply current to 0.7μA typical. The EN pin may be directly tied to V IN to keep the part on. The Enable input is CMOS logic and cannot be left floating.PSRR

The power supply rejection ratio (PSRR) is defined as the gain from the input to output divided by the gain from the supply to the output. The PSRR is found to be

???×=ΔSupply Error ΔGain log 20 PSRR Note that when heavy load measuring, Δsupply will cause Δtemperature. And Δtemperature will cause Δoutput voltage. So the heavy load PSRR measuring is include temperature effect.Current limit

The RT9013 contains an independent current limiter, which monitors and controls the pass transistor's gate voltage,limiting the output current to 0.6A (typ.). The output can be shorted to ground indefinitely without damaging the part.Thermal Considerations

Thermal protection limits power dissipation in RT9013.When the operation junction temperature exceeds 170°C,the OTP circuit starts the thermal shutdown function and turns the pass element off. The pass element turn on again after the junction temperature cools by 30°C.

For continuous operation, do not exceed absolute maximum operation junction temperature 125°C. The power dissipation definition in device is :P D = (V IN ? V OUT ) x I OUT + V IN x I Q

The maximum power dissipation depends on the thermal resistance of IC package, PCB layout, the rate of surroundings airflow and temperature difference between junction to ambient. The maximum power dissipation can be calculated by following formula :P D(MAX) = ( T J(MAX) ? T A ) /θJA

Region of Stable C OUT ESR vs. Load Current

0.001

0.01

0.1

100

200

300400500

Load Current (mA)

R e g i o n o f S t a b l e C O U T E S R (Ω)

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Figure 2. Derating Curves for RT9013 Packages

Where T J(MAX) is the maximum operation junction temperature, T A is the ambient temperature and the θJA is the junction to ambient thermal resistance.

For recommended operating conditions specification of RT9013, where T J(MAX) is the maximum junction temperature of the die (125°C) and T A is the operated ambient temperature. The junction to ambient thermal resistance θJA (θJA is layout dependent) for WDFN-6L 2x2package is 165°C/W, SOT-23-5 package is 250°C/W and SC-70-5 package is 333°C/W on the standard JEDEC 51-3 single-layer thermal test board. The maximum power dissipation at T A = 25°C can be calculated by following formula :

P D(MAX) = (125°C ? 25°C) / 165 = 0.606 W for WDFN-6L 2x2 packages

P D(MAX) = (125°C ? 25°C) / 250 = 0.400 W for SOT-23-5packages

P D(MAX) = (125°C ? 25°C) / 333 = 0.300 W for SC-70-5packages

The maximum power dissipation depends on operating ambient temperature for fixed T J(MAX) and thermal resistance θJA . For RT9013 packages, the Figure 2 of derating curves allows the designer to see the effect of rising ambient temperature on the maximum power allowed.

00.10.20.30.40.5

0.6

0.70

12.52537.550

62.57587.5100113125

Ambient Temperature P o w e r D i

s s i p a t i o n (W )

(°C)

DS9013-05 August 2007

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Outline Dimension

SOT-23-5 Surface Mount Package

DS9013-05 August 2007

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SC -70-5 Surface Mount Package

DS9013-05 August 2007

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Richtek Technology Corporation

Headquarter

5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C.

Tel: (8863)5526789 Fax: (8863)5526611

Richtek Technology Corporation

Taipei Office (Marketing)

8F, No. 137, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, R.O.C.

Tel: (8862)89191466 Fax: (8862)89191465Email: marketing@https://www.wendangku.net/doc/4513305177.html,

W-Type 6L DFN 2x2 Package