Richtek RT9013A-15GY, RT9013A-15PU5, RT9013A-18GY, RT9013A-18PU5, RT9013A-25GY Schematic [ru]
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RT9013A
120mA, Low Dropout, Low Noise Ultra-Fast Without
Bypass Capacitor CMOS LDO Regulator
General Description
The RT9013A is a high-performance, 120mA LDO 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
Note :
Richtek 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.
-
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
:
34 : 3.4V
35 : 3.5V
1B : 1.25V
1H : 1.85V
2H : 2.85V
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
54
VIN EN
SC-70-5
Note : Pin2 of SC-82 is wider than other pins.
NC
23
GND
VIN
43
EN
VOUT
2
GND
SC-82
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
DS9013A-02 April 2011 www.richtek.com
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RT9013A
Typical Application Circuit
V
IN
1uF/X7R
Chip Enable
Functional Pin Description
Pi n No.
SC-70-5 SC-82
1 4 VIN Supply Input
2 2 GND Common Ground
3 1 EN
4 -- NC No Interna l Co nnection
5 3 VOUT Regulator Output
Pin Name Pin Function
C
IN
R
pull_down
100k
VIN
EN
RT9013A
GND
VOUT
NC
C
OUT
1uF/X7R
V
OUT
Enable Input Log ic, Active High. When the EN goes to a logic low, the
device will be shutdown mode.
Function Block Diagram
EN
POR
OTP
V
REF
Current
Limit
VIN
+
MOS
Driver
VOUT
GND
DS9013A-02 April 2011www.richtek.com
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RT9013A
Absolute Maximum Ratings (Note 1)
Supply Input Voltage ------------------------------------------------------------------------------------------------------ 6V
EN Input Voltage ----------------------------------------------------------------------------------------------------------- 6V
Power Dissipation, P
SC-70-5/SC-82 ------------------------------------------------------------------------------------------------------------- 0.3W
Package Thermal Resistance (Note 2)
SC-70-5/SC-82, θJA------------------------------------------------------------------------------------------------------- 333°C/W
Lead Temperature (Soldering, 10 sec.)------------------------------------------------------------------------------- 260°C
Junction Temperature ----------------------------------------------------------------------------------------------------- 150°C
Storage Temperature Range -------------------------------------------------------------------------------------------- −65°C to 150°C
ESD Susceptibility (Note 3)
HBM -------------------------------------------------------------------------------------------------------------------------- 2kV
MM ---------------------------------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 4)
Supply Input Voltage ------------------------------------------------------------------------------------------------------ 2.2V to 5.5V
Junction Temperature Range --------------------------------------------------------------------------------------------
Ambient Temperature Range --------------------------------------------------------------------------------------------
@ T
D
= 25°C
A
−40°C to 125°C
−40°C to 85°C
Electrical Characteristics
(V
= V
+ 0.5V, V
OUT
IN
Parameter Symbol Test Conditions Min Typ Max Unit
Input Voltage Range VIN 2.2 -- 5.5 V
Output Noise Voltage VON
Output Voltage Accuracy
(Fixed Output Voltage)
Quiescent Current (Note 5) IQ V
Shutdown Current I
Current Limit I
Dropout Voltage (Note 6) V
Load Regulation (Note 7)
(Fixed Output Voltage)
EN Threshold
Enable Pin Current IEN -- 0.1 1 uA
= VIN, C
EN
= C
IN
OUT
Logic-Low Voltage V
Logic-High Voltage V
= 1uF (Ceramic, X7R), T
V
= 1.5V, C
OUT
= 0mA
I
OUT
ΔV
I
OUT
VEN = 0V -- 0.7 1.5 uA
SHDN
R
LIM
DROP
= 10mA −2 0 +2 %
OUT
= 5V, I
EN
= 0Ω, 2.2V ≤ VIN < 5.5V 130 200 300 mA
LOAD
I
= 120mA, 2.2V ≤ V
OUT
= 120mA, 3V ≤ V
I
OUT
1mA < I
LOAD
1mA < I
ΔV
2.2V ≤ V
2.7V ≤ V
0 -- 0.6
IL
1.6 -- 5.5
IH
= 25°C, unless otherwise specified)
A
= 1uF,
OUT
= 0mA -- 25 50 uA
OUT
< 3V -- 70 140
OUT
≤ 5.5V -- 60 140
OUT
< 120mA
OUT
< 2.7V
IN
< 120mA
OUT
≤ 5.5V
IN
-- 30 -- uV
-- -- 0.6
-- -- 1
RMS
mV
%
V
Power Supply Rejection Rate PSRR f = 10kHz, I
= (V
V
IN
Line Regulation ΔV
LINE
I
OUT
OUT
= 1mA
= 100mA -- −50 -- dB
OUT
+0.5) to 5.5V,
-- 0.01 0.2 %/V
To be continued
DS9013A-02 April 2011 www.richtek.com
3
RT9013A
Parameter Symbol Test Conditions Min Typ Max Unit
Thermal Shutdown Temperature TSD -- 170 --
°C
Thermal Shutdown Hysteresis ΔTSD -- 30 --
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. θ
is measured in the natural convection at T
JA
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 I
load condition (I
= 0mA). The total current drawn from the supply is the sum of the load current plus the ground pin
OUT
current.
Note 6. The dropout voltage is defined as V
-V
IN
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.
= 25°C on a low effective thermal conductivity test board of JEDEC 51-3
A
= IIN - I
Q
, which is measured when V
OUT
OUT
is V
OUT(NORMAL)
- 100mV.
under no
OUT
DS9013A-02 April 2011www.richtek.com
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