CAT6217
150mA CMOS LDO Regulator
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 (V
OUT
≥
2.0V)
±2.0% accuracy over temperature (V
OUT
≥
2.0V)
“Zero” current shutdown mode
Current limit and Under voltage lockout
Thermal protection
5-lead TSOT-23 package
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.
APPLICATIONS
Cellular phones
Battery-powered devices
Consumer Electronics
PIN CONFIGURATION
TSOT-23 5-Lead
(1mm height)
TYPICAL APPLICATION CIRCUIT
VIN
1
GND
2
EN
3
Top View
5
VOUT
V
IN
2.3V
to 5.5V
OFF ON
C
IN
1µF
VIN
VOUT
CAT6217
EN
BYP
GND
V
OUT
C
OUT
1µF
4
BYP
C
BYP
(Optional)
10nF
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. MD-10011 Rev. D
CATALYST [ CATALYST SEMICONDUCTOR ]
