CAT6217-180TD-GT3 [CATALYST]
150mA CMOS LDO Regulator; 150毫安CMOS LDO稳压器
| 型号： | CAT6217-180TD-GT3 |
| 厂家： | 
CATALYST SEMICONDUCTOR |
| 描述： | 150mA CMOS LDO Regulator |
| 文件： | 总10页 (文件大小：266K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CAT6217
150mA CMOS LDO Regulator
FEATURES
DESCRIPTION
Guaranteed 150mA output current
Low dropout voltage of 90mV typical at 150mA
Stable with 1μF ceramic output capacitor
External 10nF bypass capacitor for low noise
Quick-start feature
The CAT6217 is a 150mA 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 CAT6217 is ideal for battery-
operated devices with supply voltages from 2.3V to
5.5V. An internal under voltage lockout circuit disables
the output at supply voltages under 2.1V typical.
No-load ground current of 55μA typical
Full-load ground current of 80μA typical
±1.0% output voltage initial accuracy
±2.0% accuracy over temperature
“Zero” current shutdown mode
Current limit and Under voltage lockout
Thermal protection
The CAT6217 offers 1% initial accuracy and low
dropout voltage, 90mV typical at 150mA. Stable
operation is provided with a 1μF ceramic capacitor,
reducing required board space and component cost.
Other features include output short-circuit current limit
and thermal protection.
Thin SOT23-5 package
The device is available in the low profile (1mm max
height) 5-lead thin SOT23 package.
APPLICATIONS
Cellular phones
Battery-powered devices
Consumer Electronics
For Ordering Information details, see page 9.
PIN CONFIGURATION
TYPICAL APPLICATION CIRCUIT
TSOT-23 5-Lead
(1mm height)
V
2.3V
to 5.5V
VIN VOUT
V
OUT
IN
OUT
1
2
3
5
VIN
GND
EN
VOUT
BYP
C
IN
C
1µF
1µF
CAT6217
4
OFF ON
EN
BYP
GND
C
(Optional)
BYP
10nF
Top View
© 2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. MD-4011 Rev. A
CAT6217
PIN DESCRIPTIONS
BLOCK DIAGRAM
Pin # Name Function
VIN
1
2
VIN Supply voltage input.
GND Ground reference.
Enable input (active high); a 2.5MΩ
VOUT
V
IN
LDO
EN
V
OUT
3
EN
pull-down resistor is provided.
Optional bypass capacitor connection
BYP for noise reduction and PSRR
enhancing.
Shutdown
Switch
Reference
BYP
4
5
GND
VOUT LDO Output Voltage.
Figure 2. CAT6217 Functional Block Diagram
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. ESR
domain is 5mΩ to 500mΩ. VOUT can deliver a
maximum guaranteed current of 150mA. A 250Ω
internal shutdown switch discharges the output
capacitor in the no-load condition.
GND is the ground reference for the LDO. The pin
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.
must be connected to the ground plane on the PCB.
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 1μF
ceramic bypass capacitor is required between the VOUT
pin and ground for stability. For better transient
response, its value can be increased to 4.7μF.
ABSOLUTE MAXIMUM RATINGS (1)
Parameter
Rating
Unit
V
VIN
0 to 6.5
-0.3 to VIN+0.3
+150
VEN, VOUT
V
Junction Temperature, TJ
°C
mW
°C
°C
kV
Power Dissipation, PD
Internally Limited (2)
Storage Temperature Range, TS
Lead Temperature (soldering, 5 sec.)
ESD Rating (Human Body Model)
-65 to +150
260
3
RECOMMENDED OPERATING CONDITIONS (3)
Parameter
Range
Unit
V
VIN
2.3 to 5.5
0 to VIN
VEN
V
Junction Temperature Range, TJ
Package Thermal Resistance (SOT23-5), θJA
-40 to +125
235
°C
°C/W
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-4011 Rev. A
2
© 2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT6217
ELECTRICAL OPERATING CHARACTERISTICS (1)
VIN = VOUT + 1.0V, VEN = High, IOUT = 100μA, CIN = COUT = 1µF, ambient temperature of 25ºC (over recommended
operating 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
%
VOUT-ACC Output Voltage Accuracy
TCOUT Output Voltage Temp. Coefficient
VR-LINE Line Regulation
Initial accuracy
40
ppm/ºC
%/V
-0.2
+0.2
+0.4
1.0
±0.1
VIN = VOUT + 1.0V to 5.5V
IOUT = 100μA to 150 mA
IOUT = 150mA
-0.4
0.6
90
55
80
VR-LOAD Load Regulation
%
1.3
125
150
75
VDROP
Dropout Voltage (2)
Ground Current
mV
IOUT = 0μA
IGND
μA
90
IOUT = 150mA
VEN < 0.4V
1
IGND-SD Shutdown Ground Current
PSRR Power Supply Rejection Ratio
μA
2
f = 1kHz, CBYP = 10nF
f = 20kHz, CBYP = 10nF
VOUT = 0V
64
54
dB
ISC
TON
eN
Output short circuit current limit
Turn-On Time
Output Noise Voltage (3)
350
150
45
mA
μs
CBYP = 10nF
BW = 10Hz to 100kHz
μVrms
Ω
ROUT-SH Shutdown Switch Resistance
250
2.5
REN
VUVLO
ESR
Enable pull-down resistor
MΩ
Under-voltage lock out (UVLO)
threshold
2.1
V
COUT equivalent series resistance
5
500
mΩ
Enable Input
VHI
Logic High Level
VIN = 2.3 to 5.5V
VIN = 2.3 to 5.5V
VEN = 0.4V
1.8
V
V
VLO
Logic Low Level
0.4
1
0.15
1.5
IEN
Enable Input Current
μA
VEN = VIN
4
Thermal Protection
TSD
Thermal Shutdown
Thermal Hysteresis
160
10
ºC
ºC
THYS
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) Specification for 1.8V output version.
© 2007 Catalyst Semiconductor, Inc.
3
Doc. No. MD-4011 Rev. A
Characteristics subject to change without notice
CAT6217
TYPICAL CHARACTERISTICS (shown for 2.85V output version)
VIN = 3.85V, IOUT = 100μA, CIN = COUT = 1μF, CBYP = 10nF, TA = 25°C unless otherwise specified.
Dropout Characteristics
Line Regulation
3.0
2.5
2.0
1.5
1.0
0.5
0.0
2.87
2.86
2.85
2.84
2.83
2.82
100μA
150mA
0.0 1.0 2.0 3.0 4.0 5.0 6.0
INPUT VOLTAGE [V]
2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE [V]
Load Regulation
Output Voltage vs. Temperature
2.95
2.90
2.85
2.80
2.75
2.87
2.86
2.85
2.84
2.83
2.82
0
25 50 75 100 125 150
OUTPUT LOAD CURRENT [mA]
-40 -10 20 50 80 110 140
TEMPERATURE [°C]
Ground Current vs. Load Current
Ground Current vs. Temperature
100
65
60
55
50
45
90
80
70
60
50
0
25 50 75 100 125 150
OUTPUT LOAD CURRENT [mA]
-40 -10 20
50
80 110 140
TEMPERATURE [°C]
Doc. No. MD-4011 Rev. A
4
© 2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT6217
TYPICAL CHARACTERISTICS (shown for 2.85V output option)
VIN = 3.85V, IOUT = 100μA, CIN = COUT = 1μF, CBYP = 10nF, TA = 25°C unless otherwise specified.
Output Short-Circuit Current Limit
Ground Current vs. Input Voltage
70
60
50
40
30
20
10
0
600
500
400
300
200
100
0
VOUT = 0V
0.0 1.0 2.0 3.0 4.0 5.0 6.0
0.0 1.0 2.0 3.0 4.0 5.0 6.0
INPUT VOLTAGE [V]
INPUT VOLTAGE [V]
Dropout vs. Temperature (150mA Load)
Dropout vs. Load Current
120
90
60
30
0
200
150
100
50
0
0
30
60
90
120 150
-40 -10 20 50 80 110 140
TEMPERATURE [°C]
OUTPUT LOAD CURRENT [mA]
Enable Threshold vs. Input Voltage
PSRR vs. Frequency (10mA Load)
1.6
80
CBYP = 10nF
70
60
50
40
30
20
10
0
1.2
0.8
0.4
0.0
CBYP = 0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE [V]
0.01
0.1
1
10
100
FREQUENCY [kHz]
© 2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
5
Doc. No. MD-4011 Rev. A
CAT6217
TYPICAL CHARACTERISTICS (shown for 2.85V output option)
VIN = 3.85V, IOUT = 100μA, CIN = COUT = 1μF, CBYP = 10nF, TA = 25°C unless otherwise specified.
PSRR (30mA Load)
PSRR (150mA Load)
70
60
50
40
30
20
10
0
70
60
50
40
30
20
10
0
1kHz
1kHz
10kHz
10kHz
100kHz
100kHz
0
100
200
300
400
500
0
100
200
300
400
500
VIN - VOUT [mV]
VIN - VOUT [mV]
Doc. No. MD-4011 Rev. A
6
© 2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT6217
TRANSIENT CHARACTERISTICS (shown for 2.85V output option)
VIN = 3.85V, IOUT = 100μA, CIN = COUT = 1μF, CBYP = 10nF, TA = 25°C unless otherwise specified.
Note: All transient characteristics are generated using the evaluation board CAT621XEVAL1.
Enable Turn-On (100μA Load)
Enable Turn-Off (100μA Load)
Enable Turn-On (150mA Load)
Enable Turn-Off (150mA Load)
Line Transient Response (3.85V to 4.85V)
Load Transient Response (0.1mA to 150mA)
© 2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
7
Doc. No. MD-4011 Rev. A
CAT6217
PACKAGE OUTLINES
5-LEAD TSOT-23 (1)(2)
e
e
SYMBOL
MIN
—
NOM
—
MAX
1.00
0.10
0.90
0.45
0.20
A
A1
A2
b
0.01
0.80
0.30
0.12
0.05
0.87
E
—
E1
c
0.15
D
2.90 BSC
2.80 BSC
1.60 BSC
0.95 BSC
1.90 BSC
0.40
E
E1
e
e1
e1
L
0.30
0º
0.50
8º
L1
L2
θ
0.60 REF
0.25 BSC
D
GAUGE
PLANE
A2
c
A
L2
θ
L
A1
b
L1
2HFor current Tape and Reel information, download the PDF file
from:
Notes:
(1) All dimensions are in millimeters, angles in degrees.
(2) Refer JEDEC MO-193.
Doc. No. MD-4011 Rev. A
8
© 2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CAT6217
EXAMPLE OF ORDERING INFORMATION (1)(2)(3)(5)
Prefix
Device #
Suffix
CAT
6217
-285
TD
-G
T3
VOUT Voltage (4)
150: 1.50V
180: 1.80V
250: 2.50V
280: 2.80V
285: 2.85V
330: 3.30V
Package
TD: TSOT-23
Lead Finish
G: NiPdAu
Company ID
Product Number
6217
Tape & Reel
T: Tape & Reel
3: 3000 Units/Reel
Ordering Number
VOUT Voltage
Package
Quantity per Reel
CAT6217-150TD-GT3
CAT6217-180TD-GT3
CAT6217-250TD-GT3
CAT6217-280TD-GT3
CAT6217-285TD-GT3
CAT6217-330TD-GT3 (4)
1.50V
1.80V
2.50V
2.80V
2.85V
3.30V
TSOT-23
TSOT-23
TSOT-23
TSOT-23
TSOT-23
TSOT-23
3000
3000
3000
3000
3000
3000
Notes:
(1) All packages are RoHS-compliant (Lead-free, Halogen-free).
(2) The standard finish is NiPdAu.
(3) The device used in the above example is a CAT6217-285TD-GT3 (VOUT = 2.85V, in an TSOT-23 package, NiPdAu, Tape and Reel, 3000 units).
(4) Standard voltages are 1.50V, 1.80V, 2.50V, 2.80V, and 2.85V. For other voltage options, please contact your nearest Catalyst
Semiconductor Sales office.
(5) Top marking for CAT6217 is RT.
© 2007 Catalyst Semiconductor, Inc.
9
Doc. No. MD-4011 Rev. A
Characteristics subject to change without notice
REVISION HISTORY
Date
Rev. Reason
Preliminary Revision
06/21/2007
A
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Corporate Headquarters
2975 Stender Way
Santa Clara, CA 95054
Phone: 408.542.1000
Fax: 408.542.1200
1Hwww.catsemi.com
Document No: MD-4011
Revision:
A
Issue date:
06/21/07
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