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CAT6217_08 Datasheet, PDF (1/10 Pages) Catalyst Semiconductor – 150mA CMOS LDO Regulator | |||
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150mA CMOS LDO Regulator
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% initial accuracy (VOUT ⥠2.0V)
 ±2.0% accuracy over temperature (VOUT ⥠2.0V)
 âZeroâ current shutdown mode
 Current limit and Under voltage lockout
 Thermal protection
 5-lead TSOT-23 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 TSOT-23 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
VIN VOUT
CIN
1µF CAT6217
OFF ON
EN BYP
GND
VOUT
COUT
1µF
CBYP (Optional)
10nF
© Catalyst Semiconductor, Inc.
1
Characteristics subject to change without notice
Doc. No. MD-10011 Rev. D
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