CAT6221.SPTD.GT3 [ONSEMI]
300 mA CMOS Dual LDO Regulator; 300毫安CMOS双路LDO稳压器
| 型号： | CAT6221.SPTD.GT3 |
| 厂家： | 
ONSEMI |
| 描述： | 300 mA CMOS Dual LDO Regulator |
| 文件： | 总10页 (文件大小：586K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CAT6221
300 mA CMOS Dual LDO
Regulator
Description
The 300 mA CMOS Dual LDO CAT6221 combines in a single
TSOT−23 6−lead package two low dropout regulators (LDO), each
with its own enable pin.
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The regulator outputs drive loads up to 300 mA. By design, the dual
LDO provides fast response time during load current and line voltage
changes.
6
1
Each LDO is optimized for low noise and high crosstalk isolation.
With zero shut down current and a low quiescent current of 100 mA,
the dual LDO is ideal for battery−operated devices with supply voltage
from 2.3 V to 5.5 V.
TSOT−23
TD SUFFIX
CASE 419AF
The dual LDO offers 1% initial accuracy and very low dropout
voltage, typical 210 mV at 300 mA. Stable operation is provided with
small 1 mF ceramic output capacitors, reducing required board space
and component cost.
Other features include fold−back current limit and thermal
protection.
PIN CONNECTIONS
1
VOUT1
EN1
VIN
GND
VOUT2
EN2
The dual LDO is available in the tiny 6−lead TSOT−23 package
with a maximum height of 0.8 mm.
(Top View)
Features
MARKING DIAGRAM
T3YM
• Two Outputs with Guaranteed 300 mA Peak Output Current
• Low Dropout Voltages of 210 mV Typical at 300 mA
• Stable with Ceramic Output Capacitors
• Independent Enable Pins
• Under Voltage Lockout
• No−load Ground Current of 100 mA Typical
• Full−load Ground Current of 160 mA Typical
T3 = CAT6221 Device Code
= Production Year (last digit)
M = Production Month: 1 − 9, A, B, C
Y
•
1.0% Output Voltage Initial Accuracy (V
≥ 2.0 V)
OUT
≥ 2.0 V)
•
2.0% Accuracy Over Temperature (V
OUT
PIN FUNCTION
• “Zero” Current Shutdown Mode
Pin #
Name
Function
• Fold−back Current Limit and Thermal Protection
• TSOT−23 6−lead, 0.8 mm Height Package
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
1
EN1
Enable input (active high) for
VOUT1.
2
3
VIN
Supply voltage input.
EN2
Enable input (active high) for
VOUT2.
Applications
• Cellular Phones
• Battery−powered Devices
• Consumer Electronics
4
5
6
VOUT2 LDO Output Voltage 2.
GND Ground reference.
VOUT1 LDO Output Voltage 1.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
© Semiconductor Components Industries, LLC, 2011
1
Publication Order Number:
February, 2011 − Rev. 2
CAT6221/D
CAT6221
VIN
VOUT1
V
IN
EN1
LDO1
V
OUT1
EN1
Shutdown
Switch
Reference
VIN
2.3 V to 5.5 V
VIN
VOUT1
VOUT2
VOUT1
VOUT2
C
C
IN
OUT1
VOUT2
CAT6221
1 mF
1 mF
LDO2
EN2
V
OUT2
OFF
ON
EN1
EN2
EN2
OFF
ON
GND
Shutdown
Switch
C
OUT2
1 mF
GND
Figure 1. Typical Application Circuit
Figure 2. CAT6221 Functional Block Diagram
Pin Function
VIN is the supply pin for the LDO. A small 1 mF ceramic
pins and ground. For better transient response, its value can
be increased to 4.7 mF.
bypass capacitor is required between the V pin and ground
IN
near the device. When using longer connections to the power
The capacitor should be located near the device. For the
TSOT23 6−lead package, a continuous 300 mA output
current for both LDOs may turn−on the thermal protection.
On each output, a 250 W internal shutdown switch
discharges the output capacitor in the no−load condition.
supply, C value can be increased without limit. The
IN
operating input voltage range is from 2.3 V to 5.5 V.
EN1 & 2 are the enable control logic (active high) for the
regulator outputs.
GND is the ground reference for the LDO. The pin must be
connected to the ground plane on the PCB.
VOUT1 & 2 are the LDO regulator outputs. A small 1 mF
ceramic bypass capacitor is required between the VOUT
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter
Rating
Unit
V
V
IN
0 to 6.5
V
EN
, V
OUT
−0.3 to V + 0.3
V
IN
Junction Temperature, T
+150
_C
mW
_C
_C
kV
J
Power Dissipation, P
Internally Limited (Note 1)
D
Storage Temperature Range, T
−65 to +150
S
Lead Temperature (soldering, 5 sec.)
ESD Rating (Human Body Model)
260
3
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
Table 2. RECOMMENDED OPERATING CONDITIONS (Note 2)
Parameter
Range
Unit
V
V
V
2.3 to 5.5
IN
0 to V
V
EN
IN
Junction Temperature Range, T
−40 to +125
_C
J
Package Thermal Resistance (TSOT23), θ
235
_C/W
JA
NOTE: Typical application circuit with external components is shown above.
1. The maximum allowable power dissipation at any T (ambient temperature) is P
= (T
− T )/q . Exceeding the maximum allowable
A JA
A
Dmax
Jmax
power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.
2. The device is not guaranteed to work outside its operating rating.
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2
CAT6221
Table 3. ELECTRICAL OPERATING CHARACTERISTICS (Note 3)
(V = V
+ 1.0 V, V = High, I
= 100 mA, C = C
= 1 mF, ambient temperature of 25°C (over recommended operating
IN
OUT
EN
OUT
IN
OUT
conditions unless specified otherwise). Bold numbers apply for the entire junction temperature range.)
Symbol
Parameter
Conditions
Min
−1.0
−2.0
Typ
Max
+1.0
+2.0
Unit
V
Output Voltage Accuracy
Initial accuracy (Note 4)
%
OUT−ACC
TC
Output Voltage Temp. Coefficient
Line Regulation
40
ppm/°C
OUT
V
V
= V + 1.0 V to 5.5 V
OUT
−0.2
−0.4
0.1
+0.2
+0.4
1.5
%/V
R−LINE
IN
V
Load Regulation
I
I
= 100 mA to 300 mA
0.9
210
100
%
mV
mA
R−LOAD
OUT
OUT
2
V
DROP
Dropout Voltage (Note 5)
Ground Current
= 300 mA
280
350
140
170
I
Both LDOs Enabled
= 0 mA
GND
I
OUT
Both LDOs Enabled
= 300 mA
160
55
I
OUT
One LDO Enabled
= 0 mA
75
I
OUT
90
One LDO Enabled
85
I
= 300 mA
< 0.4 V
EN
OUT
I
Shutdown Ground Current
V
2
mA
GND−SD
4
PSRR
Power Supply Rejection Ratio
f = 1 kHz
60
45
dB
f = 20 kHz
I
Output short circuit current limit
Turn−On Time
V
= 0 V
130
150
95
mA
ms
SC
OUT
T
ON
e
Output Noise Voltage (Note 6)
Shutdown Switch Resistance
Under voltage lockout threshold
BW = 10 Hz to 100 kHz
mVrms
W
N
R
250
2.15
OUT−SH
V
V
IN−UVLO
ESR
C
equivalent series resistance
5
500
mW
OUT
ENABLE INPUT (EN1, EN2)
V
Logic High Level
Logic Low Level
V
V
V
V
= 2.3 to 5.5 V
= 2.3 to 5.5 V
= 0.4 V
1.8
V
V
HI
LO
EN
IN
V
0.4
1
IN
I
Enable Input Current
0.05
0.1
mA
EN
EN
= V
1
IN
THERMAL PROTECTION
T
Thermal Shutdown
Thermal Hysteresis
160
10
°C
°C
SD
T
HYS
3. Specification for 2.8 V output version unless specified otherwise.
4. For V < 2.0 V, the initial accuracy is 2% and across temp is 3%.
OUT
5. Dropout voltage is defined as the input−to−output differential at which the output voltage drops 2% below its nominal value measured at 1 V
differential. During test, the input voltage stays always above the minimum 2.3 V.
6. Specification for 1.8 V output version.
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3
CAT6221
TYPICAL CHARACTERISTICS (shown for 2.8 V/1.8 V outputs option)
(V = 3.8 V, I
= 100 mA, EN1 = EN2 = V , C = C
= 1 mF, T = 25°C unless otherwise specified.)
IN
OUT
IN
IN
OUT
A
Figure 3. Output Voltage 1 vs. Temperature
Figure 4. Output Voltage 2 vs. Temperature
Figure 5. Load Regulation VOUT1
Figure 6. Load Regulation VOUT2
Figure 7. Ground Current (EN2 = GND)
Figure 8. Ground Current (EN1 = GND)
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4
CAT6221
TYPICAL CHARACTERISTICS (shown for 2.8 V/1.8 V outputs option)
(V = 3.8 V, I
= 100 mA, EN1 = EN2 = V , C = C
= 1 mF, T = 25°C unless otherwise specified.)
IN
OUT
IN
IN
OUT
A
Figure 9. Ground Current (EN2 = GND)
Figure 10. Ground Current (EN1 = GND)
Figure 12. Ground Current vs. Input Voltage
Figure 14. Output Voltage 2 vs. Load Current 2
Figure 11. Output 1 Dropout Characteristics
Figure 13. Output Voltage 1 vs. Load Current 1
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5
CAT6221
TYPICAL CHARACTERISTICS (shown for 2.8 V/1.8 V outputs option)
(V = 3.8 V, I
= 100 mA, EN1 = EN2 = V , C = C
= 1 mF, T = 25°C unless otherwise specified.)
IN
OUT
IN
IN
OUT
A
Figure 15. Line Regulation VOUT1
Figure 16. Line Regulation VOUT2
Figure 17. PSRR 1 & 2 vs. Frequency
(30 mA Load)
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6
CAT6221
TRANSIENT CHARACTERISTICS (shown for 2.8 V/1.8 V outputs option)
(V = 3.8 V, I
= 100 mA, EN1 = EN2 = V , C = C
= 1 mF, T = 25°C unless otherwise specified.)
IN
OUT
IN
IN
OUT
A
Figure 18. Enable Turn−on (100 mA Loads)
Figure 19. Enable Turn−off (100 mA Loads)
Figure 20. Enable Turn−on
(300 mA/100 mA Loads)
Figure 21. Enable Turn−off
(300 mA/100 mA Loads)
Figure 22. Enable Turn−on
(100 mA/300 mA Loads)
Figure 23. Enable Turn−off
(100 mA/300 mA Loads)
NOTE: All transient characteristics are generated using the evaluation board CAT621XEVAL1.
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7
CAT6221
TRANSIENT CHARACTERISTICS (shown for 2.8 V/1.8 V outputs option)
(V = 3.8 V, I
= 100 mA, EN1 = EN2 = V , C = C
= 1 mF, T = 25°C unless otherwise specified.)
IN
OUT
IN
IN
OUT
A
Figure 24. VOUT1 Load Transient Response
(0.1 to 300 mA)
Figure 25. VOUT2 Load Transient Response
(0.1 to 300 mA)
Figure 26. Line Transient Response
(0.1 mA Loads)
Figure 27. Line Transient Response
(0.1/100 mA Loads)
Figure 28. Line Transient Response
(100/0.1 mA Loads)
Figure 29. Separate Enable Operation
(100 mA Loads)
NOTE: All transient characteristics are generated using the evaluation board CAT621XEVAL1.
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8
CAT6221
PACKAGE DIMENSIONS
TSOT−23, 6 LEAD
CASE 419AF−01
ISSUE O
SYMBOL
MIN
NOM
MAX
1.00
0.10
0.90
0.45
0.20
D
A
A1
A2
b
e
0.01
0.80
0.30
0.12
0.05
0.87
c
0.15
D
2.90 BSC
2.80 BSC
1.60 BSC
0.95 TYP
0.40
E1
E
E
E1
e
L
0.30
0.50
L1
L2
θ
0.60 REF
0.25 BSC
0º
8º
TOP VIEW
A2 A
q
L
b
c
A1
L2
L1
SIDE VIEW
END VIEW
Notes:
(1) All dimensions are in millimeters. Angles in degrees.
(2) Complies with JEDEC MO-193.
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9
CAT6221
Example of Ordering Information (Note 9)
Prefix
Device #
Suffix
CAT
6221
−MG
TD
− G
T3
Company ID
(Optional)
Product Number
V
Voltage (Note 10)
Package
TD: TSOT−23
Lead Finish
G: NiPdAu
Tape & Reel (Note 11)
T: Tape & Reel
OUT
6221
See table below for
Voltage Combinations
3: 3,000 / Reel
ORDERING INFORMATION
Orderable Part Number
V
OUT
Voltage
Package
Shipping
V
OUT1
/ V
OUT2
CAT6221−JFTD−GT3
CAT6221−JGTD−GT3
CAT6221−JLTD−GT3
CAT6221−JPTD−GT3
CAT6221−MFTD−GT3
CAT6221−MGTD−GT3
CAT6221−MLTD−GT3
CAT6221−MPTD−GT3
CAT6221−PFTD−GT3
CAT6221−PGTD−GT3
CAT6221−PLTD−GT3
CAT6221−PPTD−GT3
CAT6221−SFTD−GT3
CAT6221−SGTD−GT3
CAT6221−SLTD−GT3
CAT6221−SPTD−GT3
2.5 V / 1.5 V
2.5 V / 1.8 V
2.5 V / 2.7 V
2.5 V / 3.0 V
2.8 V / 1.5 V
2.8 V / 1.8 V
2.8 V / 2.7 V
2.8 V / 3.0 V
3.0 V / 1.5 V
3.0 V / 1.8 V
3.0 V / 2.7 V
3.0 V / 3.0 V
3.3 V / 1.5 V
3.3 V / 1.8 V
3.3 V / 2.7 V
3.3 V / 3.0 V
TSOT−23
TSOT−23
TSOT−23
TSOT−23
TSOT−23
TSOT−23
TSOT−23
TSOT−23
TSOT−23
TSOT−23
TSOT−23
TSOT−23
TSOT−23
TSOT−23
TSOT−23
TSOT−23
3,000 / Tape & Reel
3,000 / Tape & Reel
3,000 / Tape & Reel
3,000 / Tape & Reel
3,000 / Tape & Reel
3,000 / Tape & Reel
3,000 / Tape & Reel
3,000 / Tape & Reel
3,000 / Tape & Reel
3,000 / Tape & Reel
3,000 / Tape & Reel
3,000 / Tape & Reel
3,000 / Tape & Reel
3,000 / Tape & Reel
3,000 / Tape & Reel
3,000 / Tape & Reel
7. All packages are RoHS−compliant (Lead−free, Halogen−free).
8. The standard finish is NiPdAu pre−plated (PPF) lead frames.
9. The device used in the above example is a CAT6221−MGTD−GT3 (V
& Reel).
= 2.8 V, V
= 1.8 V, in a TSOT−23 package, NiPdAu, Tape
OUT1
OUT2
10.For other voltage options, please contact your nearest ON Semiconductor Sales office.
11. For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
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PUBLICATION ORDERING INFORMATION
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CAT6221/D
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1.0 Amp Adjustable Output CMOS Linear Voltage Regulator, WDFN6 3x3, 0.95P, 3000-REEL
ONSEMI
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