Richtek RT9013-12GB, RT9013-12GQW, RT9013-12PB, RT9013-12PQV, RT9013-12PQW Schematic [ru]
...
500mA, Low Dropout, Low Noise Ultra-Fast Without
Bypass Capacitor CMOS LDO Regulator
RT9013
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 SC-82, SOT-23-5, SC-70-5 and WDFN-6L
2x2 package.
Ordering Information
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 1
TTL-Logic-Controlled Shutdown Input
RoHS Compliant and 100% Lead (Pb)-Free
μμ
μF Capacitor Required for Stability
μμ
Applications
CDMA/GSM Cellular Handsets
Portable Information Appliances
Laptop, Palmtops, Notebook Computers
Hand-Held Instruments
Mini PCI & PCI-Express Cards
PCMCIA & New Cards
RT9013
-
Package Type
Y : SC-82
B : SOT-23-5
U5 : SC-70-5
QW : WDFN-6L 2x2 (W-Type)
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
Fixed Output Voltage
12 : 1.2V
13 : 1.3V
15 : 1.5V
16 : 1.6V
:
32 : 3.2V
33 : 3.3V
1B : 1.25V
1H : 1.85V
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.
2H : 2.85V
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
Pin Configurations
(TOP VIEW)
VIN
VOUT
SC-82
23
GND
7
3
2
4
6
NC
5
NC
4
VOUTVIN
4
EN GND
VOUT NC
5
VIN GND EN
SOT-23-5 / SC-70-5
1
EN
2
GND
3
WDFN-6L 2x2
DS9013-10 April 2011 www.richtek.com
1
RT9013
Typical Application Circuit
V
IN
1µF/X7R
Chip Enable
C
IN
R
100k
VIN
EN
pull_down
RT9013
GND
VOUT
C
1µF/X7R
NC
Functional Pin Description
Pin Number
SC-82
SOT-23-5 /
SC-70-5
WDFN-6L 2x2
3 5 4 VOUT Regulator Outp ut.
-- 4 5, 6 NC No Internal Connection.
2,
2 2
7 (Exposed
Pad)
1 3 1 EN
Pin Name Pin Function
Common Grou nd. Th e exposed pa d must be soldered to a
GND
large PCB and connected to GND for maximum power
dissip ation.
Enable Input Logic, Active High. W hen t he EN goes to a
logic low, the d evice will be shutdown mode.
OUT
V
OUT
4 1 3 VIN Supply Inp ut.
Function Block Diagram
EN
POR
OTP
V
REF
+
Current
Limit
MOS
Driver
VIN
VOUT
GND
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RT9013
Absolute Maximum Ratings (Note 1)
Supply Input Voltage ------------------------------------------------------------------------------------------------------ 6V
EN Input Voltage ----------------------------------------------------------------------------------------------------------- 6V
Power Dissipation, P
SOT-23-5 -------------------------------------------------------------------------------------------------------------------- 0.4W
SC-70-5/ SC-82 ------------------------------------------------------------------------------------------------------------ 0.3W
WDFN-6L 2x2 -------------------------------------------------------------------------------------------------------------- 0.606W
Package Thermal Resistance (Note 2)
SOT-23-5, θJA--------------------------------------------------------------------------------------------------------------- 250°C/W
SOT-23-5, θJC-------------------------------------------------------------------------------------------------------------- 25°C/W
SC-70-5/ SC-82, 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 Temperature ----------------------------------------------------------------------------------------------------- 150°C
Storage Temperature Range -------------------------------------------------------------------------------------------- −65°C to 150°C
ESD Susceptibility (Note 3)
HBM -------------------------------------------------------------------------------------------------------------------------- 2kV
MM ---------------------------------------------------------------------------------------------------------------------------- 200V
@ T
D
= 25°C
A
Recommended Operating Conditions (Note 4)
Supply Input Voltage ------------------------------------------------------------------------------------------------------ 2.2V to 5.5V
Junction Temperature Range --------------------------------------------------------------------------------------------
Ambient Temperature Range --------------------------------------------------------------------------------------------
−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 Volta ge VON
Output Vol tage Accuracy
(Fixed Output Voltage )
Quiescent Current (Note 5) IQ V
Shutdown Current I
Current Limit I
Dropou t Volta ge (Note 6) V
Load Regulation (Note 7)
(Fixed Output Voltage )
= VIN, C
EN
= C
IN
= 1μF (Ceramic, X7R), T
OUT
V
= 1.5V, C
OUT
0mA
I
ΔV
OUT
VEN = 0V -- 0.7 1.5 μA
SHDN
LIM
DROP
LOAD
ΔV
= 10mA −2 0 +2 %
OUT
= 5V, I
EN
R
= 0Ω, 2.2V ≤ VIN < 2.6V 0.4 0.5 0.85 A
LOAD
R
= 0Ω, 2.7V ≤ VIN ≤ 5.5V 0.5 0.6 0.85 A
LOAD
I
= 400mA, 2.2V ≤ VIN < 2.7 V -- 160 320
OUT
I
= 500mA, 2.7V ≤ VIN ≤ 5.5V -- 250 400
OUT
1mA < I
2.2V ≤ V
1mA < I
2.7V ≤ V
OUT
IN
OUT
IN
= 25°C unless otherwise specified)
A
= 1μF, I
OUT
= 0mA -- 25 50 μA
OUT
< 400 mA
< 2.7V
< 500 mA
≤ 5.5V
OUT
=
-- 30 -- μV
-- -- 0.6
-- -- 1
RMS
mV
%
To be continued
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RT9013
Parameter Symbol Test Conditions Min Typ Max Unit
EN Threshold Voltage
Logic-Low V
Logic-High V
0 -- 0.6
IL
1.6 -- 5.5
IH
V
Enable Pin Current IEN -- 0.1 1 μA
Power Supply Rejection Rate PSRR I
Line Regulation ΔV
LINE
= 100mA, f = 10kHz -- −50 -- dB
OUT
V
I
OUT
IN
= (V
= 1mA
+0.5) to 5.5V,
OUT
-- 0.01 0.2 %/V
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. The case position of θ
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 500mA.
= 25°C on a low effective thermal conductivity test board of JEDEC 51-3
A
is on the exposed pad for the package.
JC
= IIN - I
Q
, which is measured when V
OUT
OUT
is V
OUT(NORMAL)
- 100mV.
under no
OUT
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Typical Operating Characteristics
(C
= C
IN
Output Voltage (V)
= 1μ/X7R, unless otherwise specified)
OUT
Output Voltage vs. Temperature
1.60
VIN = 2.5V
1.58
1.56
1.54
1.52
1.50
1.48
1.46
1.44
1.42
1.40
-50 -25 0 25 50 75 100 125
Temperature
(°C)
RT9013
Quiescent Current v s . Temperature
30
VIN = 2.5V
28
26
24
22
20
18
16
14
Quiescent Current (uA)
12
10
-50 -25 0 25 50 75 100 125
Temperature
(°C)
350
300
250
200
150
100
Dropout Voltage (mV)
(V)
EN Pin Voltage
Dropout Voltage vs. Load Current
RT9013-33PQW
T
= 125°C
J
T
= 25°C
J
T
= -40°C
J
50
0
0 50 100 150 200 250 300 350 400 450 500
Load Current (mA)
EN Pin Shutdown Response
V
= 2.5V, I
IN
RT9013-15PQW
4
2
0
LOAD
= 50mA
Dropout Voltage (mV)
(V)
EN Pin Voltage
Dropout Voltage vs. Load Current
350
RT9013-25PQW
T
= 125°C
300
250
200
150
100
50
0
0 50 100 150 200 250 300 350 400 450 500
T
= 25°C
J
J
T
= -40°C
J
Load Current (mA)
Start Up
V
= 2.5V, I
IN
RT9013-15PQW
4
2
0
LOAD
= 75mA
(V)
Output Voltage
2
1
0
Time (100μs/Div)
(V)
Output Voltage
1.0
0.5
0
Time (5μs/Div)
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RT9013
V
IN
3.6
2.6
Deviation (V)
Input Voltage
20
0
-20
Output Voltage
RT9013-15PQW
Deviation (mV)
V
IN
100
50
(mA)
0
Load Current
Line Transient Response
= 2.6V to 3.6V, I
Time (100μs/Div)
LOAD
= 10mA
Load Transient Response
= 2.5V, I
= 10mA to 100mA
LOAD
V
IN
3.6
2.6
Deviation (V)
Input Voltage
20
0
-20
Output Voltage
RT9013-15PQW
Deviation (mV)
V
IN
400
200
(mA)
0
Load Current
Line Transient Response
= 2.6V to 3.6V, I
Time (100μs/Div)
LOAD
= 100mA
Load Transient Response
= 2.5V, I
= 10mA to 300mA
LOAD
50
0
-50
Output Voltage
Deviation (mV)
RT9013-15PQW
V
300
200
100
0
-100
Noise (μV/Div)
-200
-300
RT9013-15PQW
Time (100μs/Div)
Noise
= 3.0V (By Battery), No Load
IN
Time (10ms/Div)
50
0
-50
Output Voltage
Deviation (mV)
RT9013-15PQW
V
300
200
100
0
-100
Noise (μV/Div)
-200
-300
RT9013-15PQW
Time (100μs/Div)
= 3.0V (By Battery), I
IN
Time (10ms/Div)
Noise
LOAD
= 10mA
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RT9013
Noise (μV/Div)
V
300
200
100
0
-100
-200
-300
RT9013-15PQW
= 3.0V (By Battery), I
IN
Time (10ms/Div)
Noise
LOAD
= 300mA
20
PSRR
V
= 2.5V to 2.6V
IN
10
0
-10
-20
-30
I
= 100mA
PSRR(dB)
-40
I
= 300mA
LOAD
-50
-60
I
= 10mA
LOAD
-70
10 100 1000 10000 100000 1000000
LOAD
Frequency (Hz)
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RT9013
C
ESR
(Ω)
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/X7R 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 > 5mΩ 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 RT9013
and returned to a clean analog ground.
Region of Stable C
100.000
100
10.000
0
ESR (Ω)
1
1.000
OUT
0.100
0.1
OUT
0.01
0.010
Region of Stable C
0.001
0.001
C
= 1μF
OUT
0 50 100 150 200 250 300
ESR vs. Load Current
OUT
Unstable Range
Stable Range
Unstable Range
Load Current (mA)
Figure 1
Enable
The RT9013 goes into sleep mode when the EN pin is in a
logic low condition. During this condition, 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 VIN 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
⎛
×=
log20 PSRR
⎜
ΔSupply
⎝
⎞
Error ΔGain
⎟
⎠
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 :
PD = (V
IN
− V
OUT
) x I
+ VIN x I
OUT
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 :
DS9013-10 April 2011www.richtek.com
8
RT9013
P
Where T
temperature, T
D(MAX)
= ( T
J(MAX)
− TA ) /θ
J(MAX)
JA
is the maximum operation junction
is the ambient temperature and the θ
A
JA
the junction to ambient thermal resistance.
For recommended operating conditions specification of
RT9013 the maximum junction temperature is 125°C and
TA is the operated ambient temperature. The junction to
ambient thermal resistance θ
(θJA is layout dependent)
JA
for WDFN-6L 2x2 package is 165°C/W, SOT-23-5 package
is 250°C/W and SC-70-5/ SC-82 package is 333°C/W on
the standard JEDEC 51-3 single-layer thermal test board.
The maximum power dissipation at T
= 25°C can be
A
calculated by following formula :
P
= (125°C − 25°C) / 165°C/W = 0.606 W for
D(MAX)
WDFN-6L 2x2 packages
P
= (125°C − 25°C) / 250°C/W = 0.400 W for
D(MAX)
SOT-23-5 packages
is
P
= (125°C − 25°C) / 333°C/W = 0.300 W for
D(MAX)
SC-70-5/ SC-82 packages
The maximum power dissipation depends on operating
ambient temperature for fixed T
and thermal resistance
J(MAX)
θJA. For RT9013 package, the Figure 2 of derating curves
allows the designer to see the effect of rising ambient
temperature on the maximum power dissipation allowed.
0.7
0.6
0.5
SOT-23-5
0.4
0.3
SC-70-5/
SC-82
0.2
Power Dissipation (W)
0.1
0
0 12.5 25 37.5 50 62.5 75 87.5 100 113 125
WDFN-6L 2x2
Ambient Temperature
Single Layer PCB
(°C)
Figure 2. Derating Curves for RT9013 Packages
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RT9013
Outline Dimension
D
e
C
b
A
e
Dimensions In Millimeters Dimensions In Inches
Symbol
Min Max Min Max
A 0.800 1.100 0.031 0.043
A1 0.000 0.100 0.000 0.004
B 1.150 1.350 0.045 0.053
b 0.150 0.400 0.006 0.016
B
b1
A1
H
L
b1 0.350 0.500 0.014 0.020
C 1.800 2.450 0.071 0.096
D 1.800 2.200 0.071 0.087
e 1.300 0.051
H 0.080 0.260 0.003 0.010
L 0.200 0.460 0.008 0.018
SC-82 Surface Mount Package
10
DS9013-10 April 2011www.richtek.com
RT9013
H
D
L
C
b
A
e
Dimensions In Millim eters Dimensions In Inches
Symbol
Min Max Min Max
A 0.889 1.295 0.035 0.051
A1 0.000 0.152 0.000 0.006
B 1.397 1.803 0.055 0.071
b 0.356 0.559 0.014 0.022
C 2.591 2.997 0.102 0.118
D 2.692 3.099 0.106 0.122
e 0.838 1.041 0.033 0.041
B
A1
H 0.080 0.254 0.003 0.010
L 0.300 0.610 0.012 0.024
SOT-23-5 Surface Mount Package
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RT9013
H
D
L
C
b
A
e
Dimensions In Millimeters Dimensions In Inches
Symbol
Min Max Min Max
A 0.800 1.100 0.031 0.044
A1 0.000 0.100 0.000 0.004
B 1.150 1.350 0.045 0.054
b 0.150 0.400 0.006 0.016
C 1.800 2.450 0.071 0.096
D 1.800 2.250 0.071 0.089
B
A1
12
e 0.650 0.026
H 0.080 0.260 0.003 0.010
L 0.210 0.460 0.008 0.018
SC-70-5 Surface Mount Package
DS9013-10 April 2011www.richtek.com
RT9013
D
E
A
A3
A1
D2
L
E2
SEE DETAIL A
1
2
e
b
1
1
2
DETAIL A
Pin #1 ID and Tie Bar Mark Options
Note : The configuration of the Pin #1 identifier is optional,
but must be located within the zone indicated.
Dimensions In Millimeters Dimensions In Inches
Symbol
Min Max Min Max
A 0.700 0.800 0.028 0.031
A1 0.000 0.050 0.000 0.002
A3 0.175 0.250
b 0.200 0.350 0.008 0.014
D 1.950 2.050 0.077 0.081
D2 1.000 1.450 0.039 0.057
E 1.950 2.050 0.077 0.081
E2 0.500 0.850 0.020 0.033
e 0.650 0.026
L 0.300 0.400
Richtek Technology Corporation
Headquarter
5F, No. 20, Taiyuen Street, Chupei City
Hsinchu, Taiwan, R.O.C.
Tel: (8863)5526789 Fax: (8863)5526611
0.007 0.010
0.012 0.016
W-Type 6L DFN 2x2 Package
Richtek Technology Corporation
Taipei Office (Marketing)
5F, No. 95, Minchiuan Road, Hsintien City
Taipei County, Taiwan, R.O.C.
Tel: (8862)86672399 Fax: (8862)86672377
Email: marketing@richtek.com
Information that is provided by Richtek Technology Corporation is believed to be accurate and reliable. Richtek reserves the right to make any change in circuit design,
specification or other related things if necessary without notice at any time. No third party intellectual property infringement of the applications should be guaranteed
by users when integrating Richtek products into any application. No legal responsibility for any said applications is assumed by Richtek.
DS9013-10 April 2011 www.richtek.com
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