ON CAT6221-MLTD-GT3 300 ma cmos dual ldo regulator Datasheet

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.
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.
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.
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.
The dual LDO is available in the tiny 6−lead TSOT−23 package
with a maximum height of 0.8 mm.
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1
TSOT−23
TD SUFFIX
CASE 419AF
PIN CONNECTIONS
1
EN1
VOUT1
VIN
GND
EN2
VOUT2
(Top View)
Features
•
•
•
•
•
•
•
•
•
•
•
•
•
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
±1.0% Output Voltage Initial Accuracy (VOUT ≥ 2.0 V)
±2.0% Accuracy Over Temperature (VOUT ≥ 2.0 V)
“Zero” Current Shutdown Mode
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
Applications
• Cellular Phones
• Battery−powered Devices
• Consumer Electronics
MARKING DIAGRAM
T3YM
T3 = CAT6221 Device Code
Y = Production Year (last digit)
M = Production Month: 1 − 9, A, B, C
PIN FUNCTION
Pin #
Name
Function
1
EN1
Enable input (active high) for
VOUT1.
2
VIN
Supply voltage input.
3
EN2
Enable input (active high) for
VOUT2.
4
VOUT2
5
GND
6
VOUT1
LDO Output Voltage 2.
Ground reference.
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, 2009
December, 2009 − Rev. 1
1
Publication Order Number:
CAT6221/D
CAT6221
VIN
VIN
VOUT1
EN1
LDO1
VOUT1
EN1
Shutdown
Switch
Reference
VIN
2.3 V to 5.5 V
VIN
VOUT1
CIN
CAT6221
1 mF
OFF ON
OFF ON
VOUT1
COUT1
VOUT2
1 mF
EN1
VOUT2
EN2 GND
LDO2
EN2
VOUT2
EN2
VOUT2
Shutdown
Switch
COUT2
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
bypass capacitor is required between the VIN pin and ground
near the device. When using longer connections to the power
supply, CIN value can be increased without limit. The
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.
pins and ground. For better transient response, its value can
be increased to 4.7 mF.
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.
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
0 to 6.5
V
−0.3 to VIN + 0.3
V
+150
_C
Internally Limited (Note 1)
mW
−65 to +150
_C
260
_C
3
kV
VIN
VEN, VOUT
Junction Temperature, TJ
Power Dissipation, PD
Storage Temperature Range, TS
Lead Temperature (soldering, 5 sec.)
ESD Rating (Human Body Model)
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
VIN
2.3 to 5.5
V
VEN
0 to VIN
V
Junction Temperature Range, TJ
Package Thermal Resistance (TSOT23), θJA
−40 to +125
_C
235
_C/W
NOTE: Typical application circuit with external components is shown above.
1. The maximum allowable power dissipation at any TA (ambient temperature) is PDmax = (TJmax − TA)/qJA. Exceeding the maximum allowable
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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CAT6221
Table 3. ELECTRICAL OPERATING CHARACTERISTICS (Note 3)
(VIN = VOUT + 1.0 V, VEN = High, IOUT = 100 mA, CIN = COUT = 1 mF, ambient temperature of 25°C (over recommended operating
conditions unless specified otherwise). Bold numbers apply for the entire junction temperature range.)
Symbol
VOUT−ACC
Parameter
Output Voltage Accuracy
TCOUT
Output Voltage Temp. Coefficient
VR−LINE
Line Regulation
Conditions
Initial accuracy (Note 4)
Min
Typ
Max
Unit
−1.0
+1.0
%
−2.0
+2.0
40
VIN = VOUT + 1.0 V to 5.5 V
−0.2
±0.1
−0.4
VR−LOAD
Load Regulation
IOUT = 100 mA to 300 mA
ppm/°C
+0.2
%/V
+0.4
0.9
1.5
%
2
VDROP
Dropout Voltage (Note 5)
IOUT = 300 mA
210
280
mV
350
IGND
IGND−SD
Ground Current
Shutdown Ground Current
Both LDOs Enabled
IOUT = 0 mA
100
Both LDOs Enabled
IOUT = 300 mA
160
One LDO Enabled
IOUT = 0 mA
55
One LDO Enabled
IOUT = 300 mA
85
140
mA
170
75
90
VEN < 0.4 V
2
mA
4
PSRR
Power Supply Rejection Ratio
ISC
Output short circuit current limit
TON
Turn−On Time
dB
f = 1 kHz
60
f = 20 kHz
45
VOUT = 0 V
130
mA
150
ms
eN
Output Noise Voltage (Note 6)
95
mVrms
ROUT−SH
Shutdown Switch Resistance
250
W
VIN−UVLO
Under voltage lockout threshold
2.15
V
ESR
BW = 10 Hz to 100 kHz
COUT equivalent series resistance
5
500
mW
ENABLE INPUT (EN1, EN2)
VHI
Logic High Level
VIN = 2.3 to 5.5 V
V
VLO
Logic Low Level
VIN = 2.3 to 5.5 V
0.4
V
IEN
Enable Input Current
VEN = 0.4 V
0.05
1
mA
VEN = VIN
0.1
1
1.8
THERMAL PROTECTION
TSD
Thermal Shutdown
160
°C
THYS
Thermal Hysteresis
10
°C
3. Specification for 2.8 V output version unless specified otherwise.
4. For VOUT < 2.0 V, the initial accuracy is ±2% and across temp is ±3%.
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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CAT6221
TYPICAL CHARACTERISTICS (shown for 2.8 V/1.8 V outputs option)
(VIN = 3.8 V, IOUT = 100 mA, EN1 = EN2 = VIN, CIN = COUT = 1 mF, TA = 25°C unless otherwise specified.)
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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CAT6221
TYPICAL CHARACTERISTICS (shown for 2.8 V/1.8 V outputs option)
(VIN = 3.8 V, IOUT = 100 mA, EN1 = EN2 = VIN, CIN = COUT = 1 mF, TA = 25°C unless otherwise specified.)
Figure 9. Ground Current (EN2 = GND)
Figure 10. Ground Current (EN1 = GND)
Figure 11. Output 1 Dropout Characteristics
Figure 12. Ground Current vs. Input Voltage
Figure 13. Output Voltage 1 vs. Load Current 1
Figure 14. Output Voltage 2 vs. Load Current 2
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CAT6221
TYPICAL CHARACTERISTICS (shown for 2.8 V/1.8 V outputs option)
(VIN = 3.8 V, IOUT = 100 mA, EN1 = EN2 = VIN, CIN = COUT = 1 mF, TA = 25°C unless otherwise specified.)
Figure 15. Line Regulation VOUT1
Figure 16. Line Regulation VOUT2
Figure 17. PSRR 1 & 2 vs. Frequency
(30 mA Load)
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CAT6221
TRANSIENT CHARACTERISTICS (shown for 2.8 V/1.8 V outputs option)
(VIN = 3.8 V, IOUT = 100 mA, EN1 = EN2 = VIN, CIN = COUT = 1 mF, TA = 25°C unless otherwise specified.)
NOTE:
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)
All transient characteristics are generated using the evaluation board CAT621XEVAL1.
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CAT6221
TRANSIENT CHARACTERISTICS (shown for 2.8 V/1.8 V outputs option)
(VIN = 3.8 V, IOUT = 100 mA, EN1 = EN2 = VIN, CIN = COUT = 1 mF, TA = 25°C unless otherwise specified.)
NOTE:
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)
All transient characteristics are generated using the evaluation board CAT621XEVAL1.
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CAT6221
PACKAGE DIMENSIONS
TSOT−23, 6 LEAD
CASE 419AF−01
ISSUE O
SYMBOL
D
MIN
NOM
A1
0.01
0.05
0.10
A2
0.80
0.87
0.90
b
0.30
c
0.12
A
e
E1
1.00
0.45
0.15
D
2.90 BSC
E
2.80 BSC
E1
1.60 BSC
E
MAX
e
0.20
0.95 TYP
L
0.30
0.40
L1
0.60 REF
L2
0.25 BSC
0º
θ
0.50
8º
TOP VIEW
A2 A
b
q
L
A1
c
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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L2
CAT6221
Example of Ordering Information (Note 9)
Prefix
Device #
Suffix
CAT
6221
−MG
TD
−G
T3
Company ID
(Optional)
Product Number
6221
VOUT Voltage (Note 10)
Package
TD: TSOT−23
Lead Finish
G: NiPdAu
Tape & Reel (Note 11)
T: Tape & Reel
3: 3,000 / Reel
See table below for
Voltage Combinations
ORDERING INFORMATION
VOUT Voltage
Package
Shipping
CAT6221−JFTD−GT3
Orderable Part Number
2.5 V / 1.5 V
TSOT−23
3,000 / Tape & Reel
CAT6221−JGTD−GT3
2.5 V / 1.8 V
TSOT−23
3,000 / Tape & Reel
CAT6221−JLTD−GT3
2.5 V / 2.7 V
TSOT−23
3,000 / Tape & Reel
CAT6221−JPTD−GT3
2.5 V / 3.0 V
TSOT−23
3,000 / Tape & Reel
CAT6221−MFTD−GT3
2.8 V / 1.5 V
TSOT−23
3,000 / Tape & Reel
CAT6221−MGTD−GT3
2.8 V / 1.8 V
TSOT−23
3,000 / Tape & Reel
CAT6221−MLTD−GT3
2.8 V / 2.7 V
TSOT−23
3,000 / Tape & Reel
CAT6221−MPTD−GT3
2.8 V / 3.0 V
TSOT−23
3,000 / Tape & Reel
CAT6221−PFTD−GT3
3.0 V / 1.5 V
TSOT−23
3,000 / Tape & Reel
CAT6221−PGTD−GT3
3.0 V / 1.8 V
TSOT−23
3,000 / Tape & Reel
CAT6221−PLTD−GT3
3.0 V / 2.7 V
TSOT−23
3,000 / Tape & Reel
CAT6221−PPTD−GT3
3.0 V / 3.0 V
TSOT−23
3,000 / Tape & Reel
CAT6221−SFTD−GT3
3.3 V / 1.5 V
TSOT−23
3,000 / Tape & Reel
CAT6221−SGTD−GT3
3.3 V / 1.8 V
TSOT−23
3,000 / Tape & Reel
CAT6221−SLTD−GT3
3.3 V / 2.7 V
TSOT−23
3,000 / Tape & Reel
CAT6221−SPTD−GT3
3.3 V / 3.0 V
TSOT−23
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 (VOUT1 = 2.8 V, VOUT2 = 1.8 V, in a TSOT−23 package, NiPdAu, Tape
& Reel).
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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CAT6221/D
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