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Número de pieza | CAT6217 | |
Descripción | 150mA CMOS LDO Regulator | |
Fabricantes | Catalyst Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de CAT6217 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
No Preview Available ! 150mA CMOS LDO Regulator
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CAT6217
FEATURES
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
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
Thin SOT23-5 package
APPLICATIONS
Cellular phones
Battery-powered devices
Consumer Electronics
DESCRIPTION
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.
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.
The device is available in the low profile (1mm max
height) 5-lead thin SOT23 package.
For Ordering Information details, see page 9.
PIN CONFIGURATION
TSOT-23 5-Lead
(1mm height)
VIN 1
GND 2
EN 3
5 VOUT
4 BYP
Top View
TYPICAL APPLICATION CIRCUIT
VIN
2.3V
to 5.5V
CIN VIN VOUT
1µF CAT6217
OFF ON
EN BYP
GND
VOUT
COUT
1µF
CBYP (Optional)
10nF
© 2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. MD-4011 Rev. A
1 page www.DataCShAeetT4U6.c2om17
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
600 70
500 60
50
400
40
300
30
200 20
100
0
0.0
VOUT = 0V
1.0 2.0 3.0 4.0 5.0 6.0
INPUT VOLTAGE [V]
10
0
0.0
1.0 2.0 3.0 4.0 5.0
INPUT VOLTAGE [V]
6.0
Dropout vs. Temperature (150mA Load)
200
Dropout vs. Load Current
120
150 90
100
50
0
-40
-10 20 50 80 110 140
TEMPERATURE [°C]
60
30
0
0 30 60 90 120 150
OUTPUT LOAD CURRENT [mA]
Enable Threshold vs. Input Voltage
1.6
1.2
0.8
0.4
0.0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE [V]
PSRR vs. Frequency (10mA Load)
80
70 CBYP = 10nF
60
50
40 CBYP = 0
30
20
10
0
0.01
0.1 1 10
FREQUENCY [kHz]
100
© 2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
5
Doc. No. MD-4011 Rev. A
5 Page |
Páginas | Total 10 Páginas | |
PDF Descargar | [ Datasheet CAT6217.PDF ] |
Número de pieza | Descripción | Fabricantes |
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