RT9013A
120mA, Low Dropout, Low Noise Ultra-Fast Without Bypass Capacitor CMOS LDO Regulator
General Description
The RT9013Ais a high-performance, 120mALDO regulator, offering extremely high PSRR and ultra-low dropout. The chip is ideal for portable RF and wireless applications with demanding performance and space requirements.
The RT9013A provides quiescent current to be as low as 25uA to extend the battery life. The RT9013A also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, especially for hand-held wireless devices.
The RT9013A consumes typical 0.7uA in shutdown mode and has fast turn-on time less than 40us. The other features include ultra-low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio. Available in the SC-70-5 and SC-82 packages.
Ordering Information
RT9013A-
Package Type
U5 : SC-70-5 Y : SC-82
Lead Plating System P : Pb Free
G : Green (Halogen Free and Pb Free)
Fixed Output Voltage 12 : 1.2V
13 : 1.3V
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34 : 3.4V
35 : 3.5V
1B : 1.25V
1H : 1.85V
2H : 2.85V
Note :
Richtek products are :
`RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.
`Suitable for use in SnPb or Pb-free soldering processes.
Features
Wide Operating Voltage Ranges : 2.2V to 5.5V Low Dropout : 60mV at 120mA 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 1uF Capacitor Required for Stability TTL-Logic-Controlled Shutdown Input
RoHS Compliant and 100% Lead (Pb)-Free
Applications
CDMA/GSM Cellular Handsets
Portable Information Appliances
Laptop, Palmtops, Notebook Computers
Hand-Held Instruments
Mini PCI & PCI-Express Cards
PCMCIA & New Cards
Pin Configurations
(TOP VIEW)
VOUT NC
5 4
2 3
VIN GND EN
SC-70-5
VIN VOUT
4 3
2
EN GND
SC-82
Note : Pin2 of SC-82 is wider than other pins.
Marking Information
For marking information, contact our sales representative directly or through a Richtek distributor located in your area.
DS9013A-02 April 2011 |
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RT9013A
Typical Application Circuit
VIN |
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VIN |
VOUT |
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VOUT |
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CIN |
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COUT |
1uF/X7R |
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RT9013A |
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1uF/X7R |
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Chip Enable
EN NC
Rpull_down GND 100k
Functional Pin Description
Pin No. |
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Pin Name |
Pin Function |
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SC-70-5 |
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SC-82 |
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1 |
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4 |
VIN |
Supply Input |
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2 |
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2 |
GND |
Common Ground |
3 |
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1 |
EN |
Enable Input Logic, Active High. When the EN goes to a logic low, the |
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device will be shutdown mode. |
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4 |
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-- |
NC |
No Internal Connection |
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5 |
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3 |
VOUT |
Regulator Output |
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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
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RT9013A |
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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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SC-70-5/SC-82 ------------------------------------------------------------------------------------------------------------- |
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0.3W |
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Package Thermal Resistance (Note 2) |
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SC-70-5/SC-82, θJA ------------------------------------------------------------------------------------------------------- |
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333°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 = 1uF (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 |
-- |
5.5 |
V |
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Output Noise Voltage |
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VON |
VOUT = 1.5V, COUT = 1uF, |
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30 |
-- |
uVRMS |
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IOUT = 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 |
uA |
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Shutdown Current |
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ISHDN |
VEN = 0V |
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0.7 |
1.5 |
uA |
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Current Limit |
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ILIM |
RLOAD = 0Ω, 2.2V ≤ VIN < 5.5V |
130 |
200 |
300 |
mA |
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Dropout Voltage |
(Note 6) |
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VDROP |
IOUT = 120mA, 2.2V ≤ VOUT < 3V |
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70 |
140 |
mV |
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IOUT = 120mA, 3V ≤ VOUT ≤ 5.5V |
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60 |
140 |
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1mA < IOUT < 120mA |
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0.6 |
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Load Regulation |
(Note 7) |
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VLOAD |
2.2V ≤ VIN < 2.7V |
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(Fixed Output Voltage) |
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1mA < IOUT < 120mA |
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1 |
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2.7V ≤ VIN ≤ 5.5V |
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EN Threshold |
Logic-Low Voltage |
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VIL |
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0 |
-- |
0.6 |
V |
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Logic-High Voltage |
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VIH |
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1.6 |
-- |
5.5 |
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Enable Pin Current |
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IEN |
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-- |
0.1 |
1 |
uA |
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Power Supply Rejection Rate |
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PSRR |
f = 10kHz, IOUT = 100mA |
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−50 |
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dB |
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Line Regulation |
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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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To be continued |
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DS9013A-02 April 2011 |
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www.richtek.com |
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3 |
RT9013A
Parameter |
Symbol |
Test Conditions |
Min |
Typ |
Max |
Unit |
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Thermal Shutdown Temperature |
TSD |
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170 |
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°C |
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.
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 120mA.
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DS9013A-02 April 2011 |
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