Catalyst CAT6219-300TD-GT3 500ma cmos ldo regulator Datasheet

CAT6219
500mA CMOS LDO Regulator
FEATURES
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DESCRIPTION
Guaranteed 500mA peak output current
Low dropout voltage of 300mV typical at 500mA
Stable with ceramic output capacitor
External 10nF bypass capacitor for low noise
Quick-start feature
Under voltage lockout
No-load ground current of 55µA typical
Full-load ground current of 85µA typical
±1.0% initial accuracy (VOUT ≥ 2.0V)
±2.0% accuracy over temperature (VOUT ≥ 2.0V)
“Zero” current shutdown mode
Current limit and thermal protection
5-lead TSOT-23 and 6-pad TDFN packages
The CAT6219 is a 500mA CMOS low dropout
regulator that provides fast response time during load
current and line voltage changes.
The quick-start feature allows the use of an external
bypass capacitor to reduce the overall output noise
without affecting the turn-on time of just 150μs.
With zero shutdown current and low ground current of
55μA typical, the CAT6219 is ideal for batteryoperated devices with supply voltages from 2.3V to
5.5V. An internal under voltage lockout circuit disables
the output at supply voltages under 2.15V typical.
The CAT6219 offers 1% initial accuracy and low
dropout voltage, 300mV typical at 500mA. Stable
operation is provided with a small value ceramic
capacitor, reducing required board space and component cost.
APPLICATIONS
Other features include current limit and thermal
protection.
„ Cellular phones
„ Battery-powered devices
„ Consumer Electronics
The LDO is available in fixed and adjustable output in
the low profile (1mm max height) 5-lead TSOT23 and in
the 6-pad 2mm x 2mm TDFN packages.
For Ordering Information details, see page 9.
PIN CONFIGURATION
TYPICAL APPLICATION CIRCUIT
5-Lead TSOT-23
6-Pad TDFN
(1mm height)
(2mm x 2mm)
5 VOUT
VIN 1
GND 2
CAT6219
4 BYP/ADJ
EN 3
Top View
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
EN
1
6
VIN
2.3V
to 5.5V
BYP/ADJ
GND
2
5
NC
VIN
3
4
VOUT
OFF ON
CIN
1µF
VIN
VOUT
CAT6219
EN
BYP
GND
VOUT
COUT
2.2µF
CBYP (Optional)
10nF
Top View
1
Doc. No. MD-10009 Rev. D
CAT6219
PIN DESCRIPTIONS
Pin # Name Function
1
VIN Supply voltage input.
2
GND Ground reference.
Enable input (active high); a 2.5MΩ
3
EN
pull-down resistor is provided.
Optional bypass capacitor connection for
4
BYP
noise reduction and PSRR enhancing.
Adjustable input. Feedback pin
4
ADJ
connected to resistor divider.
5 VOUT LDO Output Voltage.
VIN
2.3V
to 5.5V
CIN
VIN
CAT6219
1µF
OFF ON
VOUT
EN
2.2µF
(
R1
ADJ
GND
R1
VOUT = 1.24V 1 +
R2
VOUT
COUT
R2
)
Figure 1. Adjustable Output LDO
PIN FUNCTION
VIN is the supply pin for the LDO. A small 1μF
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 2.3V to 5.5V.
The capacitor should be located near the device. For
the SOT23-5 package, a continuous 500mA output
current may turn-on the thermal protection. A 250Ω
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.
EN is the enable control logic (active high) for the regulator
output. It has a 2.5MΩ pull-down resistor, which
assures that if EN pin is left open, the circuit is disabled.
BYP is the reference bypass pin. An optional 0.01μF
capacitor can be connected between BYP pin and
GND to reduce the output noise and enhance the
PSRR at high frequency.
VOUT is the LDO regulator output. A small 2.2μF
ceramic bypass capacitor is required between the
VOUT pin and ground. For better transient response,
its value can be increased to 4.7μF.
ADJ is the adjustable input pin for the adjustable
LDO. The pin is connected to the resistor voltage
divider.
ABSOLUTE MAXIMUM RATINGS (1)
Parameter
Rating
Unit
VIN
0 to 6.5
V
-0.3 to VIN+0.3
V
VEN, VOUT
Junction Temperature, TJ
Power Dissipation, PD
°C
+150
Internally Limited
(2)
mW
-65 to +150
°C
260
°C
3
kV
Range
Unit
VIN
2.3 to 5.5
V
VEN
0 to VIN
V
-40 to +125
°C
235
°C/W
Storage Temperature Range, TS
Lead Temperature (soldering, 5 sec.)
ESD Rating (Human Body Model)
RECOMMENDED OPERATING CONDITIONS (3)
Parameter
Junction Temperature Range, TJ
Package Thermal Resistance (SOT23-5), θJA
Typical application circuit with external components is shown on page 1.
Notes:
(1) Exceeding maximum rating may damage the device.
(2) The maximum allowable power dissipation at any TA (ambient temperature) is PDmax = (TJmax – TA) / θJA. Exceeding the maximum
allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.
(3) The device is not guaranteed to work outside its operating rating.
Doc. No. MD-10009 Rev. D
2
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT6219
ELECTRICAL OPERATING CHARACTERISTICS
(1)
VIN = VOUT + 1.0V, VEN = High, IOUT = 100μA, CIN = 1µF, COUT = 2.2µF, ambient temperature of 25ºC (over
recommended operating conditions unless specified otherwise). Bold numbers apply for the entire junction
temperature range.
Symbol Parameter
Conditions
VOUT-ACC Output Voltage Accuracy
Initial accuracy for VOUT ≥ 2.0V (4)
TCOUT
Output Voltage Temp. Coefficient
VR-LINE
Line Regulation
VIN = VOUT + 1.0V to 5.5V
VR-LOAD
Load Regulation
IOUT = 100μA to 500 mA
VDROP
Dropout Voltage (2)
IOUT = 500mA
IGND
Min
+1.0
-2.0
+2.0
40
-0.2
IGND-SD
Shutdown Ground Current
PSRR
Power Supply Rejection Ratio
ISC
Output short circuit current limit
VOUT = 0V
TON
Turn-On Time
eN
Output Noise Voltage
55
VADJ
Adjustable input voltage
400
%
%/V
%
mV
75
90
μA
85
1
VEN < 0.4V
2
f = 1kHz, CBYP = 10nF
64
f = 20kHz, CBYP = 10nF
54
μA
dB
800
mA
CBYP = 10nF
150
μs
BW = 10Hz to 100kHz
45
μVrms
250
Ω
2.5
MΩ
2.15
V
600
VIN-UVLO Under voltage lockout threshold
COUT equivalent series resistance
1.5
500
Enable pull-down resistor
ESR
+0.2
2
300
Unit
ppm/ºC
+0.4
1
ROUT-SH Shutdown Switch Resistance
REN
±0.1
-0.4
IOUT = 500mA
(3)
Max
-1.0
IOUT = 0μA
Ground Current
Typ
5
IOUT = 100μA
1.2
VIN = 2.3 to 5.5V
1.8
1.6
1.24
500
mΩ
1.27
V
Enable Input
VHI
Logic High Level
VIN = 2.3 to 5.5V, 0ºC to
+125ºC junction temperature
VLO
Logic Low Level
VIN = 2.3 to 5.5V
IEN
Enable Input Current
V
0.4
VEN = 0.4V
0.15
1
VEN = VIN
1.5
4
V
μA
Thermal Protection
TSD
Thermal Shutdown
160
ºC
THYS
Thermal Hysteresis
10
ºC
Notes:
(1) Specification for 2.85V output version unless specified otherwise.
(2)
Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at
1V differential. During test, the input voltage stays always above the minimum 2.3V.
(3)
(4)
Specification for 1.8V output version.
For VOUT < 2.0V, the initial accuracy is ±2% and across temperature ±3%.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
3
Doc. No. MD-10009 Rev. D
CAT6219
TYPICAL CHARACTERISTICS (shown for 2.85V output version)
VIN = 3.85V, IOUT = 100μA, CIN = 1µF, COUT = 2.2μF, CBYP = 10nF, TA = 25°C unless otherwise specified.
Dropout Characteristics
Line Regulation
2.87
0.1mA
2.5
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
3.0
500mA
2.0
1.5
1.0
0.5
2.86
2.85
2.84
2.83
0.0
2.82
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
2.5
3
3.5
INPUT VOLTAGE (V)
Load Regulation
5
5.5
2.87
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
4.5
Output Voltage vs. Temperature
2.95
2.90
2.85
2.80
2.75
2.86
2.85
2.84
2.83
2.82
0
50 100 150 200 250 300 350 400 450 500
-40 -20
0
OUTPUT LOAD CURRENT (mA)
20
40
60
80 100 120 140
TEMPERATURE (ºC)
Ground Current vs. Temperature
Ground Current vs. Load Current
100
65
GROUND CURRENT (µA)
GROUND CURRENT (µA)
4
INPUT VOLTAGE (V)
90
80
70
60
61
57
53
49
45
50
0
-40
50 100 150 200 250 300 350 400 450 500
0
20
40
60
80
100 120 140
TEMPERATURE (ºC)
OUTPUT LOAD CURRENT (mA)
Doc. No. MD-10009 Rev. D
-20
4
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT6219
TYPICAL CHARACTERISTICS (shown for 2.85V output option)
VIN = 3.85V, IOUT = 100μA, CIN = 1µF, COUT = 2.2μF, CBYP = 10nF, TA = 25°C unless otherwise specified.
Ground Current vs. Input Voltage
Output Short-circuit Current vs. Input Voltage
70
1000
GROUND CURRENT (µA)
CURRENT LIMIT (mA)
900
800
700
600
500
400
300
200
100
60
50
40
30
20
10
VOUT = 0
0
0
1
2
3
4
0
5
1
1.5
2
2.5
3
3.5
4
4.5
INPUT VOLTAGE (V)
Dropout vs. Temperature (500mA Load)
Dropout vs. Load Current
5
5.5
400
500
450
400
350
300
250
350
300
250
200
150
100
200
-40 -20
0
20
40
60
50
0
80 100 120 140
0
50 100 150 200 250 300 350 400 450 500
TEMPERATURE (°C)
OUTPUT LOAD CURRENT (mA)
Enable Threshold vs. Input Voltage
PSRR vs. Frequency (10mA Load)
1.6
80
CBYP = 10nF
70
60
1.2
PSRR [dB]
ENABLE THRESHOLD (V)
0.5
INPUT VOLTAGE (V)
DROPOUT VOLTAGE (mV)
500mA DROPOUT VOLTAGE (mV)
0
0.8
50
CBYP = 0
40
30
20
0.4
10
0
1.0E+01
0
2
2.5
3
3.5
4
4.5
5
5.5
Characteristics subject to change without notice
1.0E+03
1.0E+04
1.0E+05
FREQUENCY [Hz]
INPUT VOLTAGE (V)
© Catalyst Semiconductor, Inc.
1.0E+02
5
Doc. No. MD-10009 Rev. D
CAT6219
TRANSIENT CHARACTERISTICS (shown for 2.85V output option)
VIN = 3.85V, IOUT = 100μA, CIN = 1µF, COUT = 2.2μF, CBYP = 10nF, TA = 25°C unless otherwise specified.
Enable Turn-On (100μA Load)
Enable Turn-Off (100μA Load)
Enable Turn-On (500mA Load)
Enable Turn-Off (500mA Load)
Load Transient Response (0.1mA to 500mA)
Line Transient Response (3.85V to 4.85V)
Doc. No. MD-10009 Rev. D
6
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT6219
PACKAGE OUTLINE DRAWINGS
TSOT-23 5-Lead (TD)
(1)(2)
SYMBOL
D
MIN
NOM
A
e
1.00
A1
0.01
0.05
0.10
A2
0.80
0.87
0.90
b
0.30
c
0.12
D
E1
E
MAX
0.45
0.15
0.20
2.90 BSC
E
2.80 BSC
E1
1.60 BSC
e
0.95 TYP
L
0.30
0.40
L1
0.60 REF
L2
0.25 BSC
θ
0.50
0º
8º
TOP VIEW
A2 A
b
θ
L
A1
c
L2
L1
SIDE VIEW
END VIEW
For current Tape and Reel information, download the PDF file from:
http://www.catsemi.com/documents/tapeandreel.pdf.
Notes:
(1) All dimensions are in millimeters. Angles in degrees.
(2) Complies with JEDEC standard MO-193.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
7
Doc. No. MD-10009 Rev. D
CAT6219
TDFN 6-Pad 2mm x 2mm (VP5)
(1)(2)
D
A
DETAIL A
DAP SIZE 1.8 x 1.2
E2
PIN#1
IDENTIFICATION
PIN# 1 INDEX AREA
A1
TOP VIEW
D2
SIDE VIEW
BOTTOM VIEW
e
SYMBOL
MIN
NOM
A
0.70
0.75
0.80
A1
0.00
0.02
0.05
A3
MAX
b
0.25
0.30
0.35
D
1.90
2.00
2.10
D2
1.50
1.60
1.70
E
1.90
2.00
2.10
E2
0.90
1.00
1.10
e
L
DETAIL A
A
0.65 TYP
0.15
0.25
L
b
0.20 REF
0.35
A1
FRONT VIEW
A3
For current Tape and Reel information, download the PDF file from:
http://www.catsemi.com/documents/tapeandreel.pdf.
Notes:
(1) All dimensions are in millimeters.
(2) Complies with JEDEC standard MO-229.
Doc. No. MD-10009 Rev. D
8
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT6219
EXAMPLE OF ORDERING INFORMATION
Prefix
Device #
Suffix
CAT
6219
-280
Company ID
Product Number
6219
(1)
TD
VOUT Voltage (4)
125: 1.25V
180: 1.80V
250: 2.50V
280: 2.80V
285: 2.85V
300: 3.00V
330: 3.30V
ADJ: Adjustable
-G
Package
TD: TSOT-23
VP5: TDFN (6)
T3
Lead Finish
G: NiPdAu
Tape & Reel
T: Tape & Reel
3: 3,000/Reel (TSOT-23)
4: 4,000/Reel (TDFN)
Ordering Number
VOUT Voltage(5)
Package
Quantity per Reel
CAT6219-125TD-GT3
CAT6219-180TD-GT3
CAT6219-250TD-GT3
CAT6219-280TD-GT3
CAT6219-285TD-GT3 (4)
CAT6219-300TD-GT3
CAT6219-330TD-GT3
CAT6219-ADJTD-GT3
CAT6219-330VP5-GT4
1.25V
1.80V
2.50V
2.80V
2.85V
3.00V
3.30V
1.25V to 5V
3.30V
TSOT-23-5
TSOT-23-5
TSOT-23-5
TSOT-23-5
TSOT-23-5
TSOT-23-5
TSOT-23-5
TSOT-23-5
TDFN-6
3,000
3,000
3,000
3,000
3,000
3,000
3,000
3,000
4,000
For Product Top Mark Codes, click here:
http://www.catsemi.com/techsupport/producttopmark.asp
Notes:
(1) All packages are RoHS-compliant (Lead-free, Halogen-free).
(2) The standard lead finish is NiPdAu pre-plated (PPF) lead frames.
(3) The device used in the above example is a CAT6219-280TD-GT3 (VOUT = 2.80V, in a TSOT-23 package, NiPdAu, Tape & Reel, 3,000/Reel).
(4) Standard voltages are 1.80V, 2.80V and 3.30V. For other voltage options, please contact your nearest Catalyst Semiconductor Sales office.
(5) All output voltage options have the same marking.
(6) Contact factory for availability.
(7) Package Marking for CAT6219 family is “RV.
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
9
Doc. No. MD-10009 Rev. D
CAT6219
REVISION HISTORY
Date
Rev.
20-Apr-07
A
07-Nov-07
B
08-Feb-08
C
20-May-08
D
Reason
Initial Release
Update Package Outline Drawings
Update Example of Ordering Information
Add “MD-“ to Document Number
Update Electrical Operating Characteristics
Add Adjustable and other voltage options
Update Package Outline Drawing – TDFN 6-Pad
Add link to Top Mark Codes
Copyrights, Trademarks and Patents
© Catalyst Semiconductor, Inc.
Trademarks and registered trademarks of Catalyst Semiconductor include each of the following:
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PRODUCTS FOR ANY PARTICULAR PURPOSE, NOR THAT THE USE OF ITS PRODUCTS WILL NOT INFRINGE ITS INTELLECTUAL PROPERTY RIGHTS OR THE
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OUT OF ANY SUCH USE OR APPLICATION, INCLUDING BUT NOT LIMITED TO, CONSEQUENTIAL OR INCIDENTAL DAMAGES.
Catalyst Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applications intended to support or sustain life, or for any other application in which the failure of the Catalyst Semiconductor product could create a situation where
personal injury or death may occur.
Catalyst Semiconductor reserves the right to make changes to or discontinue any product or service described herein without notice. Products with data sheets labeled
"Advance Information" or "Preliminary" and other products described herein may not be in production or offered for sale.
Catalyst Semiconductor advises customers to obtain the current version of the relevant product information before placing orders. Circuit diagrams illustrate typical
semiconductor applications and may not be complete.
Catalyst Semiconductor, Inc.
Corporate Headquarters
2975 Stender Way
Santa Clara, CA 95054
Phone: 408.542.1000
Fax:
408.542.1200
www.catsemi.com
Document No: MD-10009
Revision:
D
Issue date:
05/20/08
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