RT9058-25GX [RICHTEK]
36V, 2A IQ, 100mA Low Dropout Voltage Linear Regulator; 36V ，2A IQ ， 100mA时的低压差电压线性稳压器
| 型号： | RT9058-25GX |
| 厂家： | 
RICHTEK TECHNOLOGY CORPORATION |
| 描述： | 36V, 2A IQ, 100mA Low Dropout Voltage Linear Regulator |
| 文件： | 总9页 (文件大小：179K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
®
RT9058
36V, 2μA IQ, 100mA Low Dropout Voltage Linear Regulator
General Description
Features
z 2μA Quiescent Current
The RT9058 is a low dropout (LDO) linear voltage regulator
that features high input voltage, low dropout voltage, ultra-
low operating current, and miniaturized packaging. With
quiescent current as low as 2μA, the RT9058 is ideal for
battery-powered equipment.
z
2% Output Accuracy
z 100mA Output Current
z 3.5V to 36V Input Voltage Range
z Dropout Voltage : 0.35V at 10mA/VCC 5V
0.5V at 10mA/VCC 3.5V
The RT9058's stability requirements are easily met with
all types of output capacitors, including tiny ceramic
capacitors, over its wide input range (3.5V to 36V) and its
load current range (0mA to 100mA). The RT9058 offers
standard output voltages of 2.5V, 3V, 3.3V, 5V, 6V, 9V
and 12V.
z Fixed Output Voltage : 2.5V, 3V, 3.3V, 5V, 6V, 9V,
12V
z Stable with Ceramic or Tantalum Capacitors
z Current Limit Protection
z Over Temperature Protection
z SOT-23-3, SOT-89-3 Packages
z RoHS Compliant and Halogen Free
Applications
z Portable, Battery Powered Equipment
z Ultra Low Power Microcontrollers
z Notebook Computers
Pin Configurations
(TOP VIEW)
GND
VCC
3
3
2
3
2
2
VCC
VOUT
GND
VOUT
GND VOUT
VCC
SOT-23-3
SOT-23-3 (L-Type)
SOT-89-3
Functional Pin Description
Pin No.
Pin Name
Pin Function
SOT-23-3
SOT-23-3 (L-Type)
SOT-89-3
1
2
3
3
2
1
1
3
2
VCC
Supply Voltage Input.
Output of the Regulator.
Ground.
VOUT
GND
Simplified Application Circuit
RT9058
VCC
V
OUT
V
CC
VOUT
GND
Copyright 2013 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS9058-00 April 2013
www.richtek.com
1
RT9058
Ordering and Marking Information
Output
Marking
Output
Voltage
Marking
Information
Part Number
Package
Part Number
Package
Voltage
Information
RT9058-25GV
RT9058-25GVL
RT9058-25GX
RT9058-30GV
RT9058-30GVL
RT9058-30GX
RT9058-33GV
RT9058-33GVL
RT9058-33GX
RT9058-50GV
RT9058-50GVL
RT9058-50GX
SOT-23-3
00=
2A=
00=
2H=
2G=
10=
03=
2B=
01=
06=
2C=
02=
RT9058-60GV
RT9058-60GVL
RT9058-60GX
RT9058-90GV
RT9058-90GVL
RT9058-90GX
RT9058-C0GV
SOT-23-3
0R=
2D=
0D=
0N=
2E=
0C=
0M=
2F=
0B=
2.5V SOT-23-3 (L)
SOT-89-3
6.0V SOT-23-3 (L)
SOT-89-3
SOT-23-3
SOT-23-3
3.0V SOT-23-3 (L)
SOT-89-3
9.0V SOT-23-3 (L)
SOT-89-3
SOT-23-3
SOT-23-3
3.3V SOT-23-3 (L)
SOT-89-3
RT9058-C0GVL 12.0V SOT-23-3 (L)
RT9058-C0GX SOT-89-3
SOT-23-3
5.0V SOT-23-3 (L)
SOT-89-3
Function Block Diagram
VCC
VOUT
OCP
OTP
R1
-
GND
Bandgap
R2
Reference
Operation
The RT9058 is a high input voltage linear regulator
specifically designed to minimize external components.
The input voltage range is from 3.5V to 36V.
Current Limit Protection
The RT9058 provides a current limit function to prevent
damage during output over-load or shorted-circuit
conditions. The output current is detected by an internal
sensing transistor.
Output Transistor
The RT9058 includes a built-in low on-resistance
P-MOSFET output transistor for low dropout voltage
applications.
Over Temperature Protection
The over temperature protection function will turn off the
P-MOSFET when the internal junction temperature
exceeds 150°C (typ.) and the output current exceeds 4mA.
Once the junction temperature cools down by
approximately 20°C, the regulator will automatically
resume operation.
Error Amplifier
The ErrorAmplifier compares the output feedback voltage
from an internal feedback voltage divider to an internal
reference voltage and controls the P-MOSFET's gate
voltage to maintain output voltage regulation.
Copyright 2013 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
2
DS9058-00 April 2013
RT9058
Absolute Maximum Ratings (Note 1)
z VCC toGND --------------------------------------------------------------------------------------------------------------- −0.3V to 40V
z VOUT toGND
RT9058-C0/RT9058-60/RT9058-90 ----------------------------------------------------------------------------------- −0.3V to 15V
RT9058-25/RT9058-30/RT9058-33/RT9058-50--------------------------------------------------------------------- −0.3V to 6V
z VOUT to VCC ------------------------------------------------------------------------------------------------------------- −40V to 0.3V
z PowerDissipation, PD @ TA = 25°C
SOT-23-3 ------------------------------------------------------------------------------------------------------------------- 0.41W
SOT-89-3 ------------------------------------------------------------------------------------------------------------------- 0.6W
z Package Thermal Resistance (Note 2)
SOT-23-3, θJA -------------------------------------------------------------------------------------------------------------- 243.3°C/W
SOT-89-3, θJA -------------------------------------------------------------------------------------------------------------- 167.7°C/W
z Lead Temperature (Soldering, 10 sec.)------------------------------------------------------------------------------ 260°C
z Junction Temperature ---------------------------------------------------------------------------------------------------- 150°C
z Storage Temperature Range ------------------------------------------------------------------------------------------- −65°C to 150°C
z ESD Susceptibility (Note 3)
HBM (Human Body Model)--------------------------------------------------------------------------------------------- 2kV
MM (Machine Model) ---------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 4)
z Supply Input Voltage, VCC--------------------------------------------------------------------------------------------- 3.5V to 36V
z Junction Temperature Range------------------------------------------------------------------------------------------- −40°C to 125°C
z Ambient Temperature Range------------------------------------------------------------------------------------------- −40°C to 85°C
Electrical Characteristics
((VOUT + 1V) < VCC < 36V, TA = 25°C, unless otherwise specified.)
Parameter
Output Voltage Range
DC Output Accuracy
Dropout Voltage
Symbol
Test Conditions
Min
2.5
−2
--
Typ
--
Max
12
2
Unit
V
I
= 10mA
--
%
LOAD
I
= 10mA
= 0mA, V
= 0mA, V
= 10mA
0.3
2
0.5
3.5
5
V
LOAD
I
≤ 5.5V, V = 12V
--
LOAD
OUT
OUT
CC
V
CC
Quiescent Current
I
μA
Q
I
> 5.5V, V = 12V
--
3.5
0.2
--
LOAD
CC
Line Regulation
I
--
0.5
0.5
300
--
%
%
LOAD
Load Regulation
Output Current Limit
0 < I
< 50mA, V = V + 2V
OUT
−0.5
115
--
LOAD
CC
V
= 0.5 x V
175
−70
−40
27 x
mA
OUT
OUT (normal)
f = 100Hz, I
= 25mA
OUT
Power Supply Rejection Rate
PSRR
dB
f = 100kHz, I
= 25mA
---
--
OUT
Output Noise Voltage
BW = 10Hz − 100kHz
V
ON
C
I
= 1μF
--
--
μV
RMS
OUT
V
OUT
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
= 30mA
--
--
150
--
--
°C
°C
LOAD
20
Copyright 2013 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS9058-00 April 2013
www.richtek.com
3
RT9058
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. θJA is measured at TA = 25°C on a high effective thermal conductivity four-layer test board per JEDEC 51-7.
Note 3. Devices are ESD sensitive. Handling precaution is recommended.
Note 4. The device is not guaranteed to function outside its operating conditions.
Typical Application Circuit
RT9058
V
VCC
VOUT
V
OUT
CC
1µF
1µF
GND
Copyright 2013 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
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DS9058-00 April 2013
RT9058
Typical Operating Characteristics
Output Voltage vs. Temperature
Output Voltage vs. Output Current
3.35
3.38
3.36
3.34
3.32
3.30
3.28
3.26
3.24
3.22
3.34
3.33
3.32
3.31
Load = 0mA
Load = 10mA
Load = 20mA
Load = 50mA
3.30
3.29
VCC = 36V
VCC = 12V
VCC = 24V
3.28
3.27
3.26
VCC = 12V, VOUT = 3.3V
VOUT = 3.3V
3.25
-50
-25
0
25
50
75
100
125
0
10 20 30 40 50 60 70 80 90 100
Output Current (mA)
Temperature (°C)
Output Voltage vs. Input Voltage
Dropout Voltage vs. Temperature
3.40
3.35
3.30
3.25
3.20
2.2
1.8
1.3
0.9
0.4
0.0
Load = 50mA
Load = 20mA
Load = 0mA
Load = 10mA
Load = 20mA
Load = 50mA
Load = 10mA
VOUT = 3.3V
75 100 125
VCC = 5V to 36V, VOUT = 3.3V
20 24 28 32 36
4
8
12
16
-50
-25
0
25
50
Input Voltage (V)
Temperature (°C)
Quiescent Current vs. Input Voltage
Quiescent Current vs. Temperature
3.0
2.5
2.0
1.5
1.0
3.0
2.5
2.0
1.5
1.0
0.5
0.0
VCC = 24V
VCC = 36V
VCC = 12V
VOUT = 3.3V
VCC = 4V to 36V, VOUT = 3.3V
20 24 28 32 36
-50
-25
0
25
50
75
100
125
4
8
12
16
Input Voltage (V)
Temperature (°C)
Copyright 2013 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS9058-00 April 2013
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5
RT9058
Output Current Limit vs. Temperature
PSRR
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
300
270
240
210
180
150
120
90
VCC = 24V
VCC = 36V
VCC = 12V
IOUT = 25mA
60
30
IOUT = 10mA
100 1000
VCC = 12V, VOUT = 3.3V
10000 100000
VOUT = 3.3V
0
10
-50
-25
0
25
50
75
100
125
Frequency (Hz)
Temperature (°C)
Load Transient Response
Line Transient Response
IOUT
(50mA/Div)
VCC
(5V/Div)
VOUT
VOUT
(50mV/Div)
(10mV/Div)
VCC = 12V, VOUT = 3.3V, IOUT = 1mA to 50mA
Time (25ms/Div)
VCC = 10V to 14V, VOUT = 3.3V, IOUT = 100mA
Time (100μs/Div)
Ground Current vs. Load Current
Power Up Response
200
150
100
50
VCC = 12V, VOUT = 3.3V
Rising, TA = 125°C
Falling, TA = 125°C
Rising, TA = 25°C
Falling, TA = 25°C
Rising, TA = −40°C
Falling, TA = −40°C
VIN
(10V/Div)
VOUT
(2V/Div)
IOUT
(50mA/Div)
VIN = 12V, VOUT = 3.3V, IOUT = 50mA
0
0.001
0.01
0.1
1
10
100
1000
Time (25μs/Div)
Load Current (mA)
Copyright 2013 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
6
DS9058-00 April 2013
RT9058
Applications Information
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
Like any low dropout linear regulator, the RT9058's external
input and output capacitors must be properly selected for
stability and performance. Use a 1μF or larger input
capacitor and place it close to the IC's VCC andGNDpins.
Four-Layer PCB
SOT-89-3
SOT-23-3
Any output capacitor meeting the minimum 1mΩ ESR
(Equivalent Series Resistance) requirement may be used.
Place the output capacitor close to the IC's VOUT and
GND pins. Increasing capacitance and decreasing ESR
can improve the circuit's PSRR and line transient response.
Thermal Considerations
0
25
50
75
100
125
For continuous operation, do not exceed absolute the
maximum junction temperature. The maximum power
dissipation depends on the thermal resistance of the IC
package, PCB layout, rate of surrounding airflow, and the
allowed difference between the junction and ambient
temperatures. The maximum power dissipation can be
calculated by the following formula :
Ambient Temperature (°C)
Figure 1. Derating Curve of Maximum PowerDissipation
PD(MAX) = (TJ(MAX) − TA) / θJA
where TJ(MAX) is the maximum junction temperature, TA is
the ambient temperature, and θJA is the junction to ambient
thermal resistance.
The recommended operating conditions specify a
maximum junction temperature is 125°C. The junction to
ambient thermal resistance, θJA, is layout dependent. On
a standard JEDEC 51-7 four-layer thermal test board ,
the thermal resistance, θJA, of the SOT-23-3 package is
243.3°C/W. For the SOT-89-3 package, the θJA, is
167.7°C/W. The maximum power dissipation at TA = 25°C
can be calculated by the following formula :
PD(MAX) = (125°C − 25°C) / (243.3°C/W) = 0.41W for
SOT-23-3 package
PD(MAX) = (125°C − 25°C) / (167.7°C/W) = 0.6W for
SOT-89-3 package
For a fixed TJ(MAX) of 125°C, the maximum power
dissipation depends on the operating ambient temperature
and the package's thermal resistance, θJA. The derating
curve in Figure 1 shows the effect of rising ambient
temperature on the maximum recommended power
dissipation.
Copyright 2013 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS9058-00 April 2013
www.richtek.com
7
RT9058
Outline Dimension
H
D
L
C
B
e
b
A
A1
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min
Max
Min
Max
A
A1
B
0.889
0.000
1.397
0.356
2.591
2.692
1.803
0.080
0.300
1.295
0.152
1.803
0.508
2.997
3.099
2.007
0.254
0.610
0.035
0.000
0.055
0.014
0.102
0.106
0.071
0.003
0.012
0.051
0.006
0.071
0.020
0.118
0.122
0.079
0.010
0.024
b
C
D
e
H
L
SOT-23-3 Surface Mount Package
Copyright 2013 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
8
DS9058-00 April 2013
RT9058
D
D1
A
B
C
C1
e
e
H
A
b
b
b1
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min
Max
Min
Max
A
b
1.397
0.356
2.388
0.406
3.937
0.787
4.394
1.397
1.448
0.356
1.600
0.483
2.591
0.533
4.242
1.194
4.597
1.753
1.549
0.432
0.055
0.014
0.094
0.016
0.155
0.031
0.173
0.055
0.057
0.014
0.063
0.019
0.102
0.021
0.167
0.047
0.181
0.069
0.061
0.017
B
b1
C
C1
D
D1
e
H
3-Lead SOT-89 Surface Mount Package
Richtek Technology Corporation
5F, No. 20, Taiyuen Street, Chupei City
Hsinchu, Taiwan, R.O.C.
Tel: (8863)5526789
Richtek products are sold by description only. Richtek reserves the right to change the circuitry and/or specifications without notice at any time. Customers should
obtain the latest relevant information and data sheets before placing orders and should verify that such information is current and complete. Richtek cannot
assume responsibility for use of any circuitry other than circuitry entirely embodied in a Richtek product. Information furnished by Richtek is believed to be
accurate and reliable. However, no responsibility is assumed by Richtek or its subsidiaries for its use; nor for any infringements of patents or other rights of third
parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Richtek or its subsidiaries.
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