CAT6201VP2-GT3 [ONSEMI]
300 mA / 13 V Adjustable CMOS LDO Regulator; 300毫安/ 13 V可调式CMOS LDO稳压器
| 型号： | CAT6201VP2-GT3 |
| 厂家： | 
ONSEMI |
| 描述： | 300 mA / 13 V Adjustable CMOS LDO Regulator |
| 文件： | 总10页 (文件大小：343K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CAT6201
300 mA / 13 V Adjustable
CMOS LDO Regulator
Description
The CAT6201 is a 13 V rated 300 mA CMOS low dropout regulator
that provides fast response time to load current and line voltage
changes in an automotive environment.
http://onsemi.com
CAT6201 features a low R P−channel pass element with internal
ON
control circuitry which prevents reverse current flow should the
voltage at V
exceed V as in the case of the car’s battery voltage
OUT
IN
accidentally being applied to V
.
OUT
TDFN−8
Thermal protection and current limiting circuitry combine to protect
the pass device against faults and abuse. Current limiting is user
controlled through a single resistor to ground. A fault output (FLT)
provides an alert should an over−current event or thermal shutdown
occur.
VP2 SUFFIX
CASE 511AK
PIN CONNECTIONS
CAT6201 comes on−line gracefully even though it may be driving
heavy capacitive loads thanks to built−in soft−start circuitry. Its output
VIN
FLT
EN
VOUT
VADJ
ILIM
1
is protected against accidental connection to voltages greater than V
and will not conduct current backwards into its supply.
IN
GND
BYP
CAT6201 is available in 8−pad 2 mm x 3 mm TDFN package.
TDFN−8
(Top View)
Features
• Guaranteed 300 mA Continuous Output Current
• Low Dropout Voltage of 250 mV Typical at 300 mA
• Input Voltage Range: 3.3 V to 13.5 V
• User Adjustable Output Voltage
MARKING DIAGRAMS
HKB
LAA
YM
G
• User Programmable Current Limit
• Fault Output to Indicate Under−voltage, Current Limiting or Thermal
Shutdown has Occurred
• Fault Blanking: 3 ms
HKB
L
AA
= CAT6201VP2−GT3
= Assembly Location
= Last Two Digits of
= Assembly Lot Number
= Production Year (Last Digit)
= Production Month (1−9, O, N, D)
= Pb−Free Microdot
• V
Withstands Battery Fault Voltages of up to 14 V
OUT
• Soft−Start Prevents Current Surges
• Stable with Ceramic Output Capacitor
Y
M
G
•
•
1.5% Output Voltage Initial Accuracy
2.5% Accuracy Over Temperature
• Thermal Protection
• 8 Pad TDFN Package
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
Compliant
© Semiconductor Components Industries, LLC, 2012
1
Publication Order Number:
September, 2012 − Rev. 2
CAT6201/D
CAT6201
V
V
VIN
VOUT
ILIM
IN
OUT
2.2 mF
1 mF
100 kW
CAT6201
VADJ
BYP
GND
10 nF
Figure 1. CAT6201 Typical Application
FLT
Bias Control
Current
Sensing
V
OUT
Power PMOS
C
C
IN
OUT
I
LIM
Over Current
1.25 V Ref
R
EXT
−
R
R
1
2
+
−
V
ADJ
+
EN
Enable &
Soft Start
Error
Amplifier
BYP
GND
C
BYP
Figure 2. CAT6201 Functional Block Diagram
http://onsemi.com
2
CAT6201
Table 1. PIN FUNCTION DESCRIPTION
Pin No.
Pin Name
VIN
Description
1
2
3
4
5
6
7
8
Supply voltage input
FLT
Fault indicator (active low)
Enable input (active high)
EN
BYP
A capacitor between BYP and GND controls the regulator’s turn−on speed and improves PSRR
GND
ILIM
Ground reference
Current limit control pin
Output voltage adjustment
LDO Output Voltage
VADJ
VOUT
Backside pad in center of package provides thermal contact for cooling, typically via the PCB ground
plane. This pad is electrically active and connected to GND internally. An external Ground connection
is not required and the pad may be left floating.
Pad
−
Table 2. ABSOLUTE MAXIMUM RATINGS
Rating
Value
Unit
V
V
IN
, V
OUT
0 to 16
All other pins
−0.3 to +6.0
V
Junction Temperature, T
+150
_C
mW
_C
_C
V
J
Power Dissipation, P
Internally Limited (Note 1)
D
Storage Temperature Range, T
−65 to +150
260
S
Lead Temperature (soldering, 5 sec.)
ESD Rating (Human Body Model)
ESD Rating (Machine Model)
1000
200
V
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.
1. The maximum allowable power dissipation at any T (ambient temperature) is P
= (T
– T ) / θ . Exceeding the maximum allowable
A
Dmax
Jmax A JA
power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.
Table 3. RECOMMENDED OPERATING CONDITIONS (Note 2)
Parameter
Range
Unit
V
V
, V
3.3 to 13.5
0 to 6.0
−40 to +125
235
IN
OUT
All other pins
V
Junction Temperature Range, T
_C
_C/W
_C/W
J
Package Thermal Resistance (SOIC), θ
JA
Package Thermal Resistance (TDFN), θ
92
JA
2. The device is not guaranteed to work outside its operating rating.
http://onsemi.com
3
CAT6201
Pin Function
of its nominal value and should not be confused with I , the
SC
short circuit current, measured at V
= 0 V, which is
OUT
VIN is the supply pin for both the LDO’s operation and the
load the LDO is driving. It is recommended that a 1 mF
ceramic bypass capacitor be placed between the V pin and
typically 100 mA greater than I
.
LIM
A resistor R
placed between I
and GND selects the
EXT
LIM
IN
trip current according to a formula:
ground in close proximity to the device. When using longer
connections to the power supply, C value can be increased
without limit. The operating input voltage range is from
3.3 V to 13.5 V.
Current_Limit_Factor(CLF)
IN
(eq. 1)
I
LIM + ILIM0 )
REXT
I
is the built−in minimum current limit (typically
LIM0
FLT is an active low open−drain output indicating one of 3
fault conditions:
150 mA), and CLF is a numerical value (typical 30,000
Volts) which relates the allowable load current to a
resistance value. The value of this resistor is determined by
the following equation:
1. Input under−voltage: input is below the intended
output voltage
2. Over−current. Brief over−current events are
masked by a 3 ms time delay. CAT6201 will limit
current anytime the load tries to draw more than
the maximum allowed, however reporting of this
event will occur only if the event lasts longer than
the delay timer. Events terminating before the
timer reaches its full count are ignored and the
timer is reset.
CLF(V)
LIM(A) * ILIM0(A)
REXT(W) +
(eq. 2)
I
It is recommended that I
be set to at least 50% higher
LIM
than the maximum intended continuous I
.
OUT
Example: Set I
= 600 mA
LIMIT
30, 000 V
0.6 A * 0.15 A
REXT(W) +
+ 68 KW
(eq. 3)
3. Over−temperature shutdown has occurred.
VADJ is the output voltage control pin. A resistor divider
placed between VOUT and GND whose center point
connects to VADJ sets the LDO regulator’s output voltage.
Typical VADJ value is 1.25 V. The current through the
resistor divider can be anywhere between 10 mA and 1 mA.
The higher this current is, the lower the noise.
For best performance R1 and R2 should have similar
temperature coefficients, otherwise output voltage accuracy
will be compromised.
EN is an active HIGH logic level input for switching the
regulator’s output between ON and OFF. A weak internal
pull down assures that if EN pin is left open, the circuit is
disabled.
BYP controls the soft−start feature for the regulator. When
large capacitive loads are present at the regulator’s output,
enabling the regulator will produce large current surges on
the V supply line. To reduce these surges the regulator can
IN
be turned on gently by connecting a capacitor between the
BYP pin and ground. The larger the capacitance value the
R1
R2
ǒ1 ) Ǔ
V
OUT + VADJ
(eq. 4)
more slowly V
approaches its programmed value. The
OUT
table below gives a list of common capacitor values and their
resulting turn−on times. If the soft−start feature is not
desired, this pin should be left floating.
VOUT is the LDO regulator output. A small 2.2 mF ceramic
bypass capacitor is required between VOUT and ground.
For better transient response, its value can be increased to
4.7 mF. This capacitor should be located near the device.
VOUT is protected against short circuits and over−temp
operation by internal circuitry. In the event of an
over−current, the LDO behaves like a current source,
limiting current at the output. The maximum current
Capacitance [nF]
t
[ms]
ON
0
0.2
10
1
100
10
allowed is set by R , the resistor between I
and GND.
EXT
LIM
GND is the ground reference for the LDO in the TDFN
package, center metal pad is internally connected to GND.
If electrical contact is made with this pad, it should be to
GND and/or the ground plane of the PCB. Connection to the
ground plane enhances thermal conductivity drawing heat
out of the package and into the surrounding PCB.
If the load attempts to draw more than the allowed current,
VOUT and IOUT decrease together and thus limit the total
power delivered.
VOUT is protected against the application of voltages
greater than VIN. For example, in automotive applications,
if CAT6201 is powering a remote load and damage occurs
to a wiring harness shorting a powered line, Battery + for
instance, to VOUT, CAT6201 will not be damaged by this
higher voltage being applied to VOUT.
ILIM stands for Current Limit and is the control input for
setting the point at which the current limit is invoked. I
LIM
is defined as the current at which V
is still within 80%
OUT
http://onsemi.com
4
CAT6201
Table 4. ELECTRICAL CHARACTERISTICS
(V = V
+ 1 V, V = High, I
= 1 mA, C = 1 mF, C
= 2.2 mF, R
= 68 kW, ambient temperature of 25°C (over recommended
IN
OUT
EN
OUT
IN
OUT
EXT
operating conditions unless specified otherwise). Bold numbers apply for the entire junction temperature range.)
Symbol
Parameter
Input Voltage
Conditions
Min
3.3
Typ
Max
13.5
Unit
V
IN
V
V
Output Voltage
ADJ Voltage
V
12.5
1.268
2.0
OUT
ADJ
V
1.231
1.250
V
ADJ
I
ADJ Input Current
0.5
mA
ADJ
TC
Output Voltage
Temp. Coefficient
I
= 10 mA
100
ppm/°C
OUT
OUT
V
Line Regulation
V
+ 1 V < V < 13.5 V
−0.2
−0.4
0.1
+0.2
+0.4
2
%/V
R−LINE
OUT
IN
V
Load Regulation
I
I
I
I
= 1 mA to 300 mA
= 300 mA
= 0 mA
0.7
250
100
160
0.5
%
mV
mA
R−LOAD
OUT
OUT
OUT
OUT
V
Dropout Voltage (Note 3)
Ground Current
350
150
300
2
DROP
I
GND
= 300 mA
< 0.4 V
I
Shutdown Ground
Current
V
EN
mA
GND−SD
PSRR
Power Supply
Rejection Ratio
f = 1 kHz, C
= 10 nF
62
52
dB
BYP
f = 20 kHz, C
= 10 nF
BYP
T
ON
Turn−On Time
C
= 10 nF
700
ms
BYP
V
OUT
= 0% − 100%
I
Output short circuit
current
V
R
< 0.8 V
= 68 K
500
650
200
450
800
mA
SC
OUT
EXT
V
OUT
< 0.8 V
= OPEN
I
LIM
I
Output current limit
V
OUT
= 80% of V
measured
measured
400
120
600
180
mA
LIM
OUT
at a load of 1 mA
R
= 68 K
EXT
V
OUT
= 80% of V
150
OUT
at a load of 1 mA
I
= OPEN
LIM
CLF
Current Limit Factor
Fault Delay
V
OUT
< 0.8 V
24
1.5
30
3
36
6
KV
ms
V
t
FD
V
Under voltage
lockout threshold
2.85
3.1
3.25
IN−UVLO
ESR
R
equivalent
5
500
mW
OUT
series resistance
ENABLE INPUT
V
Logic High Level
Logic Low Level
V
V
V
V
= 3.3 to 13.5 V
= 3.3 to 13.5 V
= 0.4 V
2
V
V
HI
LO
EN
IN
V
0.4
1
IN
I
Enable Input Current
0.15
3
mA
EN
EN
= V
5
IN
THERMAL PROTECTION
T
Thermal Shutdown
Thermal Hysteresis
140
10
°C
°C
SD
T
HYS
3. Dropout voltage is defined as the input−to−output differential at which the output voltage drops 2% below its nominal value. During test, the
input voltage stays always above the minimum 3.3 V. The given values are for V
= 7.5 V.
OUT
http://onsemi.com
5
CAT6201
TYPICAL CHARACTERISTICS (shown for 7.5 V output)
(V = 8.5 V, R = 5.1 kW, R = 1 kW, C = 1 mF, C
= 2.2 mF, C
= 10 nF, R = 68 kW,
EXT
IN
1
2
IN
OUT
BYP
FLT not connected, T = 25°C unless otherwise specified.)
A
8
7
6
5
4
3
2
7.50
7.45
1 mA
300 mA
7.40
7.35
7.30
1
0
0
0
0
2
4
6
8
10
12
14
8
9
10
11
12
13
14
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
Figure 3. Dropout Characteristics
Figure 4. Line Regulation
7.50
7.45
7.40
1.27
1.26
1 mA
1.25
1.24
150 mA
300 mA
7.35
7.30
1.23
1.22
50
100
150
200
250
300
−40 −20
0
20
40
60
80 100 120 140
OUTPUT LOAD CURRENT (mA)
T , JUNCTION TEMPERATURE (°C)
J
Figure 5. Load Regulation
Figure 6. Adjustable Voltage vs. Temperature
175
150
125
175
150
125
100
75
100
75
50
100
150
200
250
300
−25
0
25
50
75
100
125
OUTPUT LOAD CURRENT (mA)
TEMPERATURE (°C)
Figure 7. Ground Current vs. Load Current
Figure 8. Ground Current vs. Temperature
http://onsemi.com
6
CAT6201
TYPICAL CHARACTERISTICS (shown for 7.5 V output)
(V = 8.5 V, R = 5.1 kW, R = 1 kW, C = 1 mF, C
= 2.2 mF, C
= 10 nF, R
= 68 kW,
IN
1
2
IN
OUT
BYP
EXT
FLT not connected, T = 25°C unless otherwise specified.)
A
800
700
600
500
400
300
200
200
R
= 69 kW
175
150
125
100
75
EXT
50
V
R
= 0
= ∞
OUT
100
0
25
0
EXT
0
0
0
2
4
6
8
10
12
14
0
4
6
2
4
6
8
10
12
14
10
14
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
Figure 9. Output Short−circuit Current vs.
Figure 10. Ground Current vs. Input Voltage
Input Voltage
2.00
1.75
12
10
8
1.50
1.25
1.00
6
4
2
0
0.75
0.50
2
4
6
8
10
12
14
5
6
7
8
9
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
Figure 11. Enable Threshold vs. Input Voltage
Figure 12. Fault Bar Voltage vs. Input Voltage
8
7
6
5
4
3
2
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
V
= V = 8 V
EN
REXT = ∞
REXT = 100 KW
REXT =
68 KW
IN
1
0
0.25
0
100
200
300
400
500
600
700
7
8
9
10
11
12
13
OUTPUT CURRENT (mA)
OUTPUT VOLTAGE (V)
Figure 13. Output Voltage vs. Load Current
Figure 14. Output Current (Sink) vs. Output
Voltage
http://onsemi.com
7
CAT6201
TYPICAL CHARACTERISTICS (shown for 7.5 V output)
(V = 8.5 V, R = 5.1 kW, R = 1 kW, C = 1 mF, C
= 2.2 mF, C
= 10 nF, R
= 68 kW,
IN
1
2
IN
OUT
BYP
EXT
T = 25°C unless otherwise specified. All transient characteristics are generated using the evaluation board CAT6201EVAL1.)
A
Figure 15. Enable Turn−On (No Load)
Figure 16. Enable Turn−On (22 W Load)
Figure 17. Enable Operation (No Load)
Figure 18. Enable Operation (22 W Load)
Figure 19. Load Transient Response
(1 mA to 330 mA)
Figure 20. Fault Operation
(VIN = 7 V and 22 W Load)
http://onsemi.com
8
CAT6201
PACKAGE DIMENSIONS
TDFN8, 2x3
CASE 511AK−01
ISSUE A
D
A
e
b
E2
E
PIN#1
IDENTIFICATION
A1
PIN#1 INDEX AREA
D2
L
TOP VIEW
SIDE VIEW
BOTTOM VIEW
SYMBOL
MIN
0.70
0.00
0.45
NOM
MAX
0.80
0.05
0.65
A
A1
A2
A3
b
0.75
0.02
A2
0.55
0.20 REF
0.25
A3
0.20
1.90
1.30
2.90
1.20
0.30
2.10
1.50
3.10
1.40
D
2.00
FRONT VIEW
D2
E
1.40
3.00
E2
e
1.30
0.50 TYP
0.30
L
0.20
0.40
Notes:
(1) All dimensions are in millimeters.
(2) Complies with JEDEC MO-229.
http://onsemi.com
9
CAT6201
ORDERING INFORMATION
Specific
Device Marking
Device Order Number
Package Type
Lead Finish
Shipping (Note 5)
CAT6201VP2−GT3
HKB
TDFN−8
NiPdAu
3,000 / Tape & Reel
4. For additional package and temperature options, please contact your nearest ON Semiconductor Sales office.
5. 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.
6. For detailed information and a breakdown of device nomenclature and numbering systems, please see the ON Semiconductor Device
Nomenclature document, TND310/D, available at www.onsemi.com.
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks,
copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. 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 nor the rights of others. SCILLC 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 SCILLC product could create a situation where
personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and
its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly,
any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture
of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
N. American Technical Support: 800−282−9855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81−3−5817−1050
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada
Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada
Email: orderlit@onsemi.com
For additional information, please contact your local
Sales Representative
CAT6201/D
相关型号：
©2020 ICPDF网 联系我们和版权申明