RT9013
500mA, Low Dropout, Low Noise Ultra-Fast Without Bypass Capacitor CMOS LDO Regulator
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
The RT9013 consumes typical 0.7μA in shutdown mode |
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and has fast turn-on time less than 40μs. The other features |
CDMA/GSM Cellular Handsets |
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include ultra-low dropout voltage, high output accuracy, |
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Portable Information Appliances |
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current limiting protection, and high ripple rejection ratio. |
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Laptop, Palmtops, Notebook Computers |
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Available in the SC-82, SOT-23-5, SC-70-5 and WDFN-6L |
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Hand-Held Instruments |
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2x2 package. |
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Mini PCI & PCI-Express Cards |
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Ordering Information |
PCMCIA & New Cards |
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RT9013- |
Marking Information |
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Package Type |
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Y : SC-82 |
For marking information, contact our sales representative |
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B : SOT-23-5 |
directly or through a Richtek distributor located in your |
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U5 : SC-70-5 |
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area. |
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QW : WDFN-6L 2x2 (W-Type) |
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Lead Plating System |
Pin Configurations |
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P : Pb Free |
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(TOP VIEW) |
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G : Green (Halogen Free and Pb Free) |
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VIN |
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VOUT |
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Fixed Output Voltage |
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12 : 1.2V |
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13 : 1.3V |
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15 : 1.5V |
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16 : 1.6V |
EN |
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GND |
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SC-82 |
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32 : 3.2V |
VOUT |
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33 : 3.3V |
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1B : 1.25V |
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1H : 1.85V |
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2H : 2.85V |
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Note : |
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Richtek products are : |
VIN GND EN |
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SOT-23-5 / SC-70-5 |
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` RoHS compliant and compatible with the current require- |
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ments of IPC/JEDEC J-STD-020. |
EN 1 |
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NC |
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` Suitable for use in SnPb or Pb-free soldering processes. |
GND |
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GND 2 |
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NC |
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VIN 3 |
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VOUT |
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7 4 |
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WDFN-6L 2x2 |
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DS9013-10 April 2011 |
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RT9013
Typical Application Circuit
VIN |
VIN |
VOUT |
VOUT |
CIN |
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COUT |
1µF/X7R |
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RT9013 |
1µF/X7R |
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Chip Enable
EN NC
Rpull_down GND 100k
Functional Pin Description
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Pin Number |
Pin Name |
Pin Function |
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SC-82 |
SOT-23-5 / |
WDFN-6L 2x2 |
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SC-70-5 |
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3 |
5 |
4 |
VOUT |
Regulator Output. |
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-- |
4 |
5, 6 |
NC |
No Internal Connection. |
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2, |
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Common Ground. The exposed pad must be soldered to a |
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2 |
2 |
7 (Exposed |
GND |
large PCB and connected to GND for maximum power |
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Pad) |
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dissipation. |
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1 |
3 |
1 |
EN |
Enable Input Logic, Active High. When the EN goes to a |
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logic low, the device will be shutdown mode. |
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4 |
1 |
3 |
VIN |
Supply Input. |
Function Block Diagram
EN |
POR |
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Current |
OTP |
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Limit |
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VIN |
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VREF |
- |
MOS |
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+ |
Driver |
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VOUT |
GND
www.richtek.com |
DS9013-10 April 2011 |
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RT9013 |
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Absolute Maximum Ratings |
(Note 1) |
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Supply Input Voltage ------------------------------------------------------------------------------------------------------ |
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6V |
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EN Input Voltage ----------------------------------------------------------------------------------------------------------- |
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6V |
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Power Dissipation, PD @ TA = 25°C |
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SOT-23-5 -------------------------------------------------------------------------------------------------------------------- |
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0.4W |
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SC-70-5/ SC-82 ------------------------------------------------------------------------------------------------------------ |
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0.3W |
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WDFN-6L 2x2 -------------------------------------------------------------------------------------------------------------- |
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0.606W |
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Package Thermal Resistance |
(Note 2) |
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SOT-23-5, θJA --------------------------------------------------------------------------------------------------------------- |
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250°C/W |
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SOT-23-5, θJC -------------------------------------------------------------------------------------------------------------- |
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25°C/W |
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SC-70-5/ SC-82, θJA ------------------------------------------------------------------------------------------------------ |
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333°C/W |
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WDFN-6L 2x2, θJA --------------------------------------------------------------------------------------------------------- |
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165°C/W |
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WDFN-6L 2x2, θJC --------------------------------------------------------------------------------------------------------- |
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20°C/W |
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Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- |
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260°C |
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Junction Temperature ----------------------------------------------------------------------------------------------------- |
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150°C |
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Storage Temperature Range -------------------------------------------------------------------------------------------- |
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−65°C to 150°C |
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ESD Susceptibility |
(Note 3) |
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HBM -------------------------------------------------------------------------------------------------------------------------- |
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2kV |
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MM ---------------------------------------------------------------------------------------------------------------------------- |
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200V |
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Recommended Operating Conditions (Note 4) |
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Supply Input Voltage ------------------------------------------------------------------------------------------------------ |
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2.2V to 5.5V |
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Junction Temperature Range -------------------------------------------------------------------------------------------- |
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−40°C to 125°C |
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Ambient Temperature Range -------------------------------------------------------------------------------------------- |
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−40°C to 85°C |
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Electrical Characteristics |
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(VIN = VOUT + 0.5V, VEN = VIN, CIN = COUT = 1μF (Ceramic, X7R), TA = 25°C unless otherwise specified) |
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Parameter |
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Symbol |
Test Conditions |
Min |
Typ |
Max |
Unit |
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Input Voltage Range |
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VIN |
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2.2 |
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5.5 |
V |
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Output Noise Voltage |
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VON |
VOUT = 1.5V, COUT = 1μF, IOUT = |
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30 |
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μVRMS |
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0mA |
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Output Voltage Accuracy |
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VOUT |
IOUT = 10mA |
−2 |
0 |
+2 |
% |
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(Fixed Output Voltage) |
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Quiescent Current |
(Note 5) |
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IQ |
VEN = 5V, IOUT = 0mA |
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25 |
50 |
μA |
Shutdown Current |
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ISHDN |
VEN = 0V |
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0.7 |
1.5 |
μA |
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Current Limit |
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ILIM |
RLOAD = 0Ω, 2.2V ≤ VIN < 2.6V |
0.4 |
0.5 |
0.85 |
A |
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RLOAD = 0Ω, 2.7V ≤ VIN ≤ 5.5V |
0.5 |
0.6 |
0.85 |
A |
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Dropout Voltage |
(Note 6) |
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VDROP |
IOUT = 400mA, 2.2V ≤ VIN < 2.7V |
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160 |
320 |
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IOUT = 500mA, 2.7V ≤ VIN ≤ 5.5V |
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250 |
400 |
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1mA < IOUT < 400mA |
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0.6 |
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Load Regulation |
(Note 7) |
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2.2V ≤ VIN < 2.7V |
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VLOAD |
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% |
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(Fixed Output Voltage) |
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1mA < IOUT < 500mA |
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1 |
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2.7V ≤ VIN ≤ 5.5V |
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To be continued |
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DS9013-10 April 2011 |
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www.richtek.com |
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3 |
RT9013
Parameter |
Symbol |
Test Conditions |
Min |
Typ |
Max |
Unit |
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EN Threshold Voltage |
Logic-Low |
VIL |
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0 |
-- |
0.6 |
V |
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Logic-High |
VIH |
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1.6 |
-- |
5.5 |
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Enable Pin Current |
IEN |
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0.1 |
1 |
μA |
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Power Supply Rejection Rate |
PSRR |
IOUT = 100mA, f = 10kHz |
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−50 |
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dB |
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Line Regulation |
VLINE |
VIN = (VOUT+0.5) to 5.5V, |
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0.01 |
0.2 |
%/V |
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IOUT = 1mA |
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Thermal Shutdown Temperature |
TSD |
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170 |
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°C |
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Thermal Shutdown Hysteresis |
TSD |
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30 |
-- |
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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. θJA is measured in the natural convection at TA = 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 package.
Note 3. Devices are ESD sensitive. Handling precaution is recommended.
Note 4. The device is not guaranteed to function outside its operating conditions.
Note 5. Quiescent, or ground current, is the difference between input and output currents. It is defined by IQ = IIN - IOUT under no load condition (IOUT = 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 VIN -VOUT, which is measured when VOUT is VOUT(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.
www.richtek.com |
DS9013-10 April 2011 |
4 |
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RT9013
Typical Operating Characteristics
(CIN = COUT = 1μ/X7R, unless otherwise specified)
Output Voltage vs. Temperature |
Quiescent Current vs. Temperature |
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1.60 |
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30 |
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VIN = 2.5V |
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VIN = 2.5V |
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1.58 |
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28 |
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(V) |
1.56 |
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(uA) |
26 |
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1.54 |
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24 |
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VoltageOutput |
1.52 |
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CurrentQuiescent |
22 |
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1.50 |
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20 |
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1.48 |
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18 |
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1.46 |
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16 |
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1.44 |
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14 |
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1.42 |
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12 |
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1.40 |
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10 |
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-50 |
-25 |
0 |
25 |
50 |
75 |
100 |
125 |
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-50 |
-25 |
0 |
25 |
50 |
75 |
100 |
125 |
Temperature (°C) |
Temperature (°C) |
Dropout Voltage vs. Load Current |
Dropout Voltage vs. Load Current |
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350 |
RT9013-33PQW |
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350 |
RT9013-25PQW |
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300 |
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TJ = 125°C |
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300 |
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TJ = 125°C |
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(mV) |
250 |
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TJ = 25°C |
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(mV) |
250 |
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TJ = 25°C |
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Voltage |
200 |
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Voltage |
200 |
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150 |
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150 |
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TJ = -40°C |
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Dropout |
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TJ = -40°C |
Dropout |
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100 |
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100 |
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50 |
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0 |
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0 |
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0 |
50 |
100 |
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200 |
250 |
300 |
350 |
400 |
450 |
500 |
0 |
50 |
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150 |
200 |
250 |
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350 |
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450 |
500 |
Load Current (mA) |
Load Current (mA) |
Pin Voltage |
(V) |
EN |
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Output Voltage |
(V) |
EN Pin Shutdown Response
VIN = 2.5V, ILOAD = 50mA
4 RT9013-15PQW
2
0
2
1
0
Time (100μs/Div)
Pin Voltage |
(V) |
EN |
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Output Voltage |
(V) |
Start Up
VIN = 2.5V, ILOAD = 75mA
4 RT9013-15PQW
2
0
1.0
0.5
0
Time (5μs/Div)
DS9013-10 April 2011 |
www.richtek.com |
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5 |