RT9193-28GJ5 [RICHTEK]
IC REG LIN 2.8V 300MA TSOT23-5;
| 型号： | RT9193-28GJ5 |
| 厂家： | 
RICHTEK TECHNOLOGY CORPORATION |
| 描述： | IC REG LIN 2.8V 300MA TSOT23-5 |
| 文件： | 总14页 (文件大小：167K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
®
RT9193
300mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator
General Description
Features
Ultra Low Noise for RF Application
Ultra Fast Response in Line/Load Transient
Quick Start-Up (Typically 50μs)
<0.01μA Standby Current When Shutdown
Low Dropout : 220mV @ 300mA
The RT9193 is designed for portable RF and wireless
applications with demanding performance and space
requirements. The RT9193 performance is optimized for
battery-powered systems to deliver ultra low noise and
low quiescent current. A noise bypass pin is available for
further reduction of output noise. Regulator ground current
increases only slightly in dropout, further prolonging the
battery life. The RT9193 also works with low-ESR ceramic
capacitors, reducing the amount of board space necessary
for power applications, critical in hand-held wireless
devices. The RT9193 consumes less than 0.01μA in
shutdown mode and has fast turn-on time less than 50μs.
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, SOT-23-5,
TSOT-23-5, WDFN-6L 2x2 and MSOP-8 packages.
Wide Operating Voltage Ranges : 2.5V to 5.5V
TTL-Logic-Controlled Shutdown Input
Low Temperature Coefficient
Current Limiting Protection
Thermal Shutdown Protection
Only 1μF Output Capacitor Required for Stability
High Power Supply Rejection Ratio
Custom Voltage Available
RoHS Compliant and 100% Lead (Pb)-Free
Applications
CDMA/GSM Cellular Handsets
Battery-Powered Equipment
Laptop, Palmtops, Notebook Computers
Hand-Held Instruments
Ordering Information
RT9193-
Package Type
U5 : SC-70-5
B : SOT-23-5
J5 : TSOT-23-5
QW : WDFN-6L 2x2 (W-Type)
F : MSOP-8
PCMCIA Cards
Portable InformationAppliances
Marking Information
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
Output Voltage
15 : 1.5V
16 : 1.6V
Typical Application Circuit
:
49 : 4.9V
RT9193
50 : 5.0V
1H : 1.85V
2H : 2.85V
V
V
VIN
VOUT
IN
OUT
C
C
OUT
IN
4G : 4.75V
(1.5V to 5V with 0.1V step is available)
1µF/X7R
1µF/X7R
GND
EN
Chip Enable
Note :
BP
C
BP
Richtek products are :
22nF
(Option for low noise)
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.
Copyright 2016 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS9193-17 January 2016
www.richtek.com
1
RT9193
Pin Configurations
(TOP VIEW)
VOUT
BP
NC
VIN
NC
8
7
6
5
NC
EN
BP
GND
1
2
3
6
5
4
EN
GND
VIN
BP
5
4
2
3
4
NC
7
2
3
VOUT
VOUT
VIN GND EN
WDFN-6L 2x2
MSOP-8
SC-70-5/SOT-23-5/TSOT-23-5
Functional Pin Description
Pin Name
Pin Function
Chip Enable (Active High). Note that this pin is high impedance. There should be a pull low 100k
resistor connected to GND when the control signal is floating.
EN
BP
Reference Noise Bypass. This pin can be floating. For lowest noise performance, connect a 22nF
capacitor between the BP and GND pins.
GND
VOUT
VIN
Ground.
Output Voltage.
Power Input Voltage.
Function Block Diagram
EN
Shutdown
and
Logic Control
VIN
Quick
Start
V
REF
BP
MOSFET
Driver
+
Error
VOUT
GND
Amplifier
Current-Limit
and
Thermal
Protection
Copyright 2016 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
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2
DS9193-17 January 2016
RT9193
Absolute Maximum Ratings (Note 1)
Supply Input Voltage------------------------------------------------------------------------------------------------------ 6V
PowerDissipation, PD @ TA = 25°C
SC-70-5 ---------------------------------------------------------------------------------------------------------------------- 300mW
TSOT-23-5/SOT-23-5------------------------------------------------------------------------------------------------------ 400mW
WDFN-6L 2x2 -------------------------------------------------------------------------------------------------------------- 606mW
MSOP-8 --------------------------------------------------------------------------------------------------------------------- 625mW
Package Thermal Resistance (Note 2)
SC-70-5, θJA ---------------------------------------------------------------------------------------------------------------- 333°C/W
SC-70-5, θJC ---------------------------------------------------------------------------------------------------------------- 200°C/W
TSOT-23-5/SOT-23-5, θJA ------------------------------------------------------------------------------------------------ 250°C/W
TSOT-23-5/SOT-23-5, θJC ----------------------------------------------------------------------------------------------- 25°C/W
WDFN-6L 2x2, θJA --------------------------------------------------------------------------------------------------------- 165°C/W
WDFN-6L 2x2, θJC -------------------------------------------------------------------------------------------------------- 20°C/W
MSOP-8 θJA ---------------------------------------------------------------------------------------------------------------- 160°C/W
MSOP-8 θJC ---------------------------------------------------------------------------------------------------------------- 55°C/W
Junction Temperature ----------------------------------------------------------------------------------------------------- 150°C
Lead Temperature (Soldering, 10 sec.)------------------------------------------------------------------------------- 260°C
Storage Temperature Range -------------------------------------------------------------------------------------------- −65°C to 150°C
ESD Susceptibility (Note 3)
HBM (Human Body Model)---------------------------------------------------------------------------------------------- 2kV
MM (Machine Model) ----------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 4)
Supply Input Voltage------------------------------------------------------------------------------------------------------ 2.5V to 5.5V
EN Input Voltage ----------------------------------------------------------------------------------------------------------- 0V to 5.5V
Junction Temperature Range-------------------------------------------------------------------------------------------- −40°C to 125°C
Ambient Temperature Range-------------------------------------------------------------------------------------------- −40°C to 85°C
Electrical Characteristics
(VIN = VOUT + 1V, CIN = COUT = 1μF, CBP = 22nF, TA = 25°C, unless otherwise specified)
Parameter
Output Voltage Accuracy
Current Limit
Symbol
Test Conditions
= 1mA
Min
2
Typ
--
Max
2
Unit
%
V
I
OUT
OUT
I
R
= 1
LOAD
360
--
400
90
--
mA
A
LIM
Quiescent Current
I
V
1.2V, I = 0mA
OUT
130
200
300
Q
EN
OUT
OUT
I
I
= 200mA, V
> 2.8V
> 2.8V
170
220
OUT
OUT
Dropout Voltage (Note 5)
Line Regulation
V
mV
%
DROP
= 300mA, V
--
--
V
IN
= (V
+ 1V) to 5.5V,
OUT
V
--
0.3
LINE
I
= 1mA
OUT
Load Regulation
Standby Current
V
1mA I
300mA
--
--
--
0.6
1
%
LOAD
OUT
I
V
EN
= GND, Shutdown
0.01
A
STBY
Copyright 2016 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS9193-17 January 2016
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3
RT9193
Parameter
Symbol
Test Conditions
Min
--
Typ
0
Max
100
0.4
--
Unit
EN Input Bias Current
I
V
V
V
= GND or VIN
EN
nA
IBSD
Logic-Low
Logic-High
V
IL
= 3V to 5.5V, Shutdown
= 3V to 5.5V, Start-Up
--
--
EN Threshold
Voltage
IN
IN
V
V
IH
1.2
--
10Hz to 100kHz, I
= 200mA
OUT
Output Noise Voltage
e
--
100
--
V
RMS
NO
C
OUT
= 1F
Power Supply
Rejection Rate
f = 100Hz
f = 10kHz
--
--
--
--
70
50
165
30
--
--
--
--
PSRR
C
OUT
= 1F, I
= 10mA
dB
OUT
Thermal Shutdown Temperature
Thermal Shutdown Temperature
T
C
C
SD
TSD
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 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. The dropout voltage is defined as VIN − VOUT, which is measured when VOUT is VOUT(NORMAL) − 100mV.
Copyright 2016 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
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4
DS9193-17 January 2016
RT9193
Typical Operating Characteristics
Quiescent Current vs. Temperature
Output Voltage vs. Temperature
95
90
85
80
75
70
65
60
1.8
RT9193-15xU5
VIN = 3.3V
CIN = COUT = 1μF X7R
RT9193-15xU5
VIN = 3.3V
CIN = COUT = 1μF X7R
1.7
1.6
1.5
1.4
1.3
1.2
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
Temperature (°C)
Temperature ( C)
Dropout Voltage vs. Load Current
PSRR
20
0
300
250
200
150
100
50
VIN = 4V to 5V
RT9193-33xB
CIN = COUT = 1μF
CIN = COUT = 1μF, X7R
TJ = 125°C
-20
-40
-60
-80
TJ = 25°C
TJ = -40°C
ILoad = 100mA
ILoad = 10mA
0
10
100
1K
10K
100K
1M
0
0.05
0.1
0.15
0.2
0.25
0.3
Frequency (Hz)
Load Current (A)
EN Pin Shutdown Threshold vs. Temperature
EN Pin Shutdown Response
1.75
RT9193-15xU5
VIN = 3.3V
CIN = COUT = 1μF X7R
VIN = 5V
CIN = COUT = 1μF
RT9193-28xU5
No Load
10
1.50
1.25
1.00
0.75
0.50
5
0
2
1
0
-50
-25
0
25
50
75
100
125
Time (500μs/Div)
Temperature (°C)
Copyright 2016 Richtek Technology Corporation. All rights reserved.
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is a registered trademark of Richtek Technology Corporation.
DS9193-17 January 2016
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5
RT9193
Load Transient Response
Load Transient Response
VIN = 5V, VOUT = 2.8V
CIN = COUT = 1μF
ILOAD = 1mA to 60mA
ILOAD = 1mA to 250mA
VIN = 5V, VOUT = 2.8V
CIN = COUT = 1μF
100
50
0
400
200
0
20
0
50
0
-20
-50
Time (500μs/Div)
Time (500μs/Div)
Line Transient Response
Line Transient Response
VIN = 4V to 5V
COUT = 1μF
RT9193-25xB
ILOAD = 1mA
VIN = 4V to 5V
COUT = 1μF
RT9193-25xB
ILOAD = 100mA
6
5
4
6
5
4
10
0
10
0
-10
-10
Time (100μs/Div)
Time (50μs/Div)
Noise
Noise
RT9193-30xB
ILOAD = 50mA
VIN = 4.5V
CIN = COUT = 1μF, X7R
VIN = 4.5V
CIN = COUT = 1μF, X7R
RT9193-15xU5
ILOAD = 50mA
200
100
0
200
100
0
-100
-200
-100
-200
f = 10Hz to 100kHz
f = 10Hz to 100kHz
Time (10ms/Div)
Time (10ms/Div)
Copyright 2016 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
6
DS9193-17 January 2016
RT9193
Start Up
VIN = 5V
CIN = COUT = 1μF
RT9193-28xU5
No Load
10
5
0
2
1
0
Time (10μs/Div)
Copyright 2016 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS9193-17 January 2016
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7
RT9193
Applications Information
Bypass Capacitor and Low Noise
Like any low dropout regulator, the external capacitors
used with the RT9193 must be carefully selected for
regulator stability and performance. Using a capacitor
whose value is >1μF on the RT9193 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 or tantalum 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 RT9193 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 >1mΩ on the RT9193 output
ensures stability. The RT9193 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 RT9193 and returned to a
clean analog ground.
Connecting a 22nF between the BP pin and GND pin
significantly reduces noise on the regulator output, it is
critical that the capacitor connection between the BP pin
andGNDpin be direct and PCB traces should be as short
as possible. There is a relationship between the bypass
capacitor value and the LDO regulator turn on time. DC
leakage on this pin can affect the LDO regulator output
noise and voltage regulation performance.
Enable Function
The RT9193 features an LDO regulator enable/disable
function. To assure the LDO regulator will switch on, the
EN turn on control level must be greater than 1.2 volts.
The LDO regulator will go into the shutdown mode when
the voltage on the EN pin falls below 0.4 volts. For to
protecting the system, the RT9193 have a quick-discharge
function. If the enable function is not needed in a specific
application, it may be tied to VIN to keep the LDO regulator
in a continuously on state.
Thermal Considerations
Thermal protection limits power dissipation in RT9193.
When the operation junction temperature exceeds 165°C,
the OTP circuit starts the thermal shutdown function turn
the pass element off. The pass element turn on again
after the junction temperature cools by 30°C.
Region of Stable COUT ESR vs. Load Current
100
For continue operation, do not exceed absolute maximum
operation junction temperature 125°C. The power
dissipation definition in device is :
Instable
10
PD = (VIN − VOUT) x IOUT + VIN x IQ
1
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 :
Stable
0.1
0.01
RT9193-15xU5
CIN = COUT = 1μF, X7R
0.001
PD(MAX) = ( TJ(MAX) − TA ) /θJA
0
50
100
150
200
250
300
Where TJ(MAX) is the maximum operation junction
temperature 125°C, TA is the ambient temperature and
the θJA is the junction to ambient thermal resistance.
Load Current (mA)
Figure 1
Copyright 2016 Richtek Technology Corporation. All rights reserved.
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is a registered trademark of Richtek Technology Corporation.
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8
DS9193-17 January 2016
RT9193
For recommended operating conditions specification of
RT9193, where TJ(MAX) is the maximum junction
temperature of the die (125°C) and TA is the maximum
ambient temperature. The junction to ambient thermal
resistance (θJA is layout dependent) for TSOT-23-5/
SOT-23-5 package is 250°C/W, SC-70-5 package is
333°C/W, WDFN-6L 2x2 package is 165°C/W and MSOP-
8 package is 160°C/W on standard JEDEC 51-3 thermal
test board. The maximum power dissipation at TA = 25°C
can be calculated by following formula :
PD(MAX) = (125°C − 25°C) / 333 = 300mW for
SC-70-5
PD(MAX) = (125°C − 25°C) / 250 = 400mW for
TSOT-23-5/SOT-23-5
PD(MAX) = (125°C − 25°C) / 165 = 606mW for
WDFN-6L 2x2
PD(MAX) = (125°C −25°C) / 160 = 625mW for
MSOP-8
The maximum power dissipation depends on operating
ambient temperature for fixed TJ(MAX) and thermal
resistance θJA. For RT9193 packages, the Figure 2 of
derating curves allows the designer to see the effect of
rising ambient temperature on the maximum power
allowed.
700
MSOP-8
WDFN-6L 2x2
600
500
400
300
200
100
0
TSOT-23-5/
SOT-23-5
SC 70-5
0
25
50
75
100
125
Ambient Temperature (°C)
Figure 2.Derating Curve for Packages
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is a registered trademark of Richtek Technology Corporation.
DS9193-17 January 2016
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9
RT9193
Outline Dimension
H
D
L
B
C
A
b
A1
e
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min
Max
Min
Max
A
A1
B
0.800
0.000
1.150
0.150
1.800
1.800
1.100
0.100
1.350
0.400
2.450
2.250
0.031
0.000
0.045
0.006
0.071
0.071
0.044
0.004
0.054
0.016
0.096
0.089
b
C
D
e
0.650
0.026
H
L
0.080
0.210
0.260
0.460
0.003
0.008
0.010
0.018
SC-70-5 Surface Mount Package
Copyright 2016 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
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DS9193-17 January 2016
RT9193
H
D
L
B
C
A
b
A1
e
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min
Max
1.000
0.100
1.803
0.559
3.000
3.099
1.041
0.254
0.610
Min
Max
A
A1
B
0.700
0.000
1.397
0.300
2.591
2.692
0.838
0.080
0.300
0.028
0.000
0.055
0.012
0.102
0.106
0.033
0.003
0.012
0.039
0.004
0.071
0.022
0.118
0.122
0.041
0.010
0.024
b
C
D
e
H
L
TSOT-23-5 Surface Mount Package
Copyright 2016 Richtek Technology Corporation. All rights reserved.
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is a registered trademark of Richtek Technology Corporation.
DS9193-17 January 2016
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11
RT9193
H
D
L
B
C
A
b
A1
e
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min
Max
1.295
0.152
1.803
0.559
2.997
3.099
1.041
0.254
0.610
Min
Max
A
A1
B
0.889
0.000
1.397
0.356
2.591
2.692
0.838
0.080
0.300
0.035
0.000
0.055
0.014
0.102
0.106
0.033
0.003
0.012
0.051
0.006
0.071
0.022
0.118
0.122
0.041
0.010
0.024
b
C
D
e
H
L
SOT-23-5 Surface Mount Package
Copyright 2016 Richtek Technology Corporation. All rights reserved.
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is a registered trademark of Richtek Technology Corporation.
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12
DS9193-17 January 2016
RT9193
D
D2
L
E
E2
SEE DETAIL A
1
b
e
2
1
2
1
A
A3
A1
DETAILA
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
A1
A3
b
0.700
0.000
0.175
0.200
1.950
1.000
1.950
0.500
0.800
0.050
0.250
0.350
2.050
1.450
2.050
0.850
0.028
0.000
0.007
0.008
0.077
0.039
0.077
0.020
0.031
0.002
0.010
0.014
0.081
0.057
0.081
0.033
D
D2
E
E2
e
0.650
0.026
L
0.300
0.400
0.012
0.016
W-Type 6L DFN 2x2 Package
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DS9193-17 January 2016
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13
RT9193
D
L
E
E1
e
A2
A
A1
b
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min
Max
Min
Max
A
A1
A2
b
0.810
0.000
0.750
0.220
2.900
1.100
0.150
0.950
0.380
3.100
0.032
0.000
0.030
0.009
0.114
0.043
0.006
0.037
0.015
0.122
D
e
0.650
0.026
E
4.800
2.900
0.400
5.000
3.100
0.800
0.189
0.114
0.016
0.197
0.122
0.031
E1
L
8-Lead MSOP Plastic Package
Richtek Technology Corporation
14F, No. 8, Tai Yuen 1st 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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DS9193-17 January 2016
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