®
RT9030
150mA, Low Input Voltage, Low Dropout, Low Noise Ultra-
Fast Without Bypass Capacitor CMOS LDO Regulator
General Description
The RT9030 is a high-performance, 150mA LDO regulator,
offering extremely high PSRR and ultra-low dropout. Ideal
for portable RF and wireless applications with demanding
performance and space requirements.
The RT9030 quiescent current as low as 25μA, further
prolonging the battery life. The RT9030 also works with
low-ESR ceramic capacitors, reducing the amount of board
space necessary for power applications, critical in hand-
held wireless devices.
The RT9030 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-70-5 and WDFN-6L 1.6x1.6 package.
Features
Wide Operating Voltage Ranges : 1.65V to 5.5V
Output Voltage Ranges : 1V to 3.3V
Low Dropout : 100mV at 150mA
Ultra-Low-Noise for RF Application
Ultra-Fast Response in Line/Load Transient
Current Limiting Protection
Thermal Shutdown Protection
High Power Supply Rejection Ratio
Only 1μF Output Capacitor Required for Stability
μ
TTL-Logic-Controlled Shutdown Input
RoHS Compliant and Halogen Free
Applications
CDMA/GSM Cellular Handsets
Portable Information Appliances
Laptop, Palmtops, Notebook Computers
Hand-Held Instruments
Mini PCI & PCI-Express Cards
PCMCIA & New Cards
Ordering Information
RT9030
-
Package Type
U5 : SC-70-5
QW : WDFN-6L 1.6x1.6 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Fixed Output Voltage
10 : 1.0V
11 : 1.1V
:
32 : 3.2V
33 : 3.3V
1B : 1.25V
1H : 1.85V
2H : 2.85V
1K : 1.05V
1C : 1.15V
Note :
Richtek products are :
½
Pin Configuration
(TOP VIEW)
VOUT
5
2
NC
4
3
VIN GND EN
SC-70-5
EN
NC
VIN
1
2
3
6
5
4
7
GND
NC
VOUT
WDFN-6L 1.6x1.6
GND
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.
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
is a registered trademark of Richtek Technology Corporation.
½
Copyright
©
2016 Richtek Technology Corporation. All rights reserved.
DS9030-05 November 2016
www.richtek.com
1
RT9030
Typical Application Circuit
V
IN
C
IN
1µF/X7R
VIN
VOUT
C
OUT
1µF/X7R
V
OUT
RT9030
EN
GND
NC
Chip Enable
Functional Pin Description
Pin Number
WDFN-6L
SC-70-5
1.6x1.6
5
4
2
3
1
4
2, 5
Pin Name
VOUT
NC
Regulator output.
No internal connection.
Ground. The exposed pad must be soldered to a large PCB and
connected to GND for maximum power dissipation.
Enable input Logic, active high. When the EN pin is open it will be pulled
to low internally.
Supply input.
Pin Function
6,
GND
7 (Exposed Pad)
1
3
EN
VIN
Functional Block Diagram
EN
POR
OTP
1µA
V
REF
-
+
Current
Limit
MOS
Driver
VOUT
VIN
GND
Copyright
©
2016 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
2
DS9030-05 November 2016
RT9030
Absolute Maximum Ratings
(Note 1)
6V
6V
0.3W
0.571W
333°C/W
Supply Input Voltage ----------------------------------------------------------------------------------------------------
EN Input Voltage ---------------------------------------------------------------------------------------------------------
Power Dissipation, P
D
@ T
A
= 25°C
SC-70-5 --------------------------------------------------------------------------------------------------------------------
WDFN-6L 1.6x1.6 --------------------------------------------------------------------------------------------------------
Package Thermal Resistance (Note 2)
SC-70-5,
θ
JA
---------------------------------------------------------------------------------------------------------------
WDFN-6L 1.6x1.6,
θ
JA
-------------------------------------------------------------------------------------------------- 175°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 (Human Body Model) -------------------------------------------------------------------------------------------- 2kV
MM (Machine Model) ---------------------------------------------------------------------------------------------------- 200V
(Note 4)
Recommended Operating Conditions
Input Voltage Range ----------------------------------------------------------------------------------------------------- 1.65V to 5.5V
Junction Temperature Range ------------------------------------------------------------------------------------------
−40°C
to 125°C
Ambient Temperature Range ------------------------------------------------------------------------------------------
−40°C
to 85°C
Electrical Characteristics
Parameter
Output Noise Voltage
Output Voltage Accuracy
(Fixed Output Voltage)
Quiescent Current
Shutdown Current
Current Limit
Dropout Voltage
(Note 6)
(Note 5)
(V
IN
= V
OUT
+ 0.5V, V
EN
= V
IN
, C
IN
= C
OUT
= 1μF/X5R (Ceramic), T
A
= 25°C, unless otherwise specified)
Symbol
V
ON
V
OUT
I
Q
I
SHDN
I
LIM
V
DROP
Test Conditions
I
OUT
= 0mA
I
OUT
= 150mA
I
OUT
= 0mA
V
EN
= 0V
R
LOAD
= 0, 1.65V
V
IN
< 5.5V
V
OUT
= 1.7V to 2.4V,
I
OUT
= 150mA, 1.65V
V
IN
5.5V
V
OUT
= 2.5V to 3.3V,
I
OUT
= 150mA, 1.65V
V
IN
5.5V
1mA < I
OUT
< 150mA
1.65V
V
IN
5.5V
Min
--
2
--
--
170
50
20
--
0
1.6
--
--
--
--
Typ
30
0
25
0.7
285
--
--
--
--
--
1
67
55
40
Max
--
2
50
1.5
400
200
Unit
μV
RMS
%
μA
μA
mA
mV
150
1
0.3
5.5
3
--
--
--
dB
%
V
μA
Load Regulation
(Note 7)
(Fixed Output Voltage)
EN Threshold
V
LOAD
Logic-Low Voltage V
IL
Logic-High Voltage V
IH
I
EN
PSRR
f = 1kHz
Enable Pin Current
Power Supply
f = 10kHz
Rejection Rate
f = 100kHz
Copyright
©
2016 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS9030-05 November 2016
www.richtek.com
3
RT9030
Parameter
Line Regulation
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
Symbol
V
LINE
T
SD
T
SD
Test Conditions
V
IN
= (V
OUT
+ 0.5) to 5.5V,
I
OUT
= 1mA to 150mA
Min
--
--
--
Typ
0.01
150
20
Max
0.2
--
--
Unit
%/V
C
Note 1.
Stresses beyond those listed
“Absolute
Maximum Ratings” may cause permanent damage to the device. These are
stress ratings only, and 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 may
affect device reliability.
Note 2.
θ
JA
is measured at T
A
= 25°C on a low effective thermal conductivity single-layer test board per JEDEC 51-3.
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
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 120mA.
Copyright
©
2016 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
4
DS9030-05 November 2016
RT9030
Typical Operating Characteristics
Output Voltage vs. Temperature
1.80
1.75
31
29
Quiescent Current vs. Temperature
RT9030-33GU5, V
IN
= 4.2V
Quiescent Current (µA)
Output Voltage (V)
27
25
23
21
19
17
1.70
1.65
1.60
1.55
1.50
-40 -25 -10
RT9030-17GU5, V
IN
= 3.3V
RT9030-10GU5, V
IN
= 1.65V
RT9030-17GU5, V
IN
= 3.3V, V
OUT
= 1.7V
5
20
35
50
65
80
95 110 125
15
-40 -25 -10
5
20
35
50
65
80
95 110 125
Temperature
(°C)
Temperature (°C)
Dropout Voltage vs. Load Current
0.12
0.10
0.18
0.16
Dropout Voltage vs. Load Current
125°C
25°C
125°C
25°C
Dropout Voltage (V)
Dropout Voltage (V)
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
0
25
50
75
0.08
0.06
0.04
0.02
0.00
0
25
50
75
-40°C
-40°C
RT9030-33GU5
100
125
150
RT9030-17GU5
100
125
150
Load Current (mA)
Load Current (mA)
Power On from EN
RT9030-17GU5, V
IN
= 3.3V, I
LOAD
= 50mA
Power Off from EN
RT9030-17GU5, V
IN
= 3.3V, I
LOAD
= 50mA
V
EN
(5V/Div)
V
EN
(5V/Div)
V
OUT
(500mV/Div)
Time (10μs/Div)
V
OUT
(500mV/Div)
Time (50μs/Div)
Copyright
©
2016 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS9030-05 November 2016
www.richtek.com
5
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