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1
500mA CMOS LDO
Regulator
CYT6118
Description
The
CYT6118 is an efficient linear voltage
regulator. It has extra low dropout voltage. At light
loads the typical dropout voltage is 4.6mV, at full
load the typical dropout voltage is 300mV. The
output voltage accuracy is better than 2%.
The
CYT6118 has low ground current, so it can
help prolong battery life. The
CYT6118 is specially
designed for hand-held, battery-powered devices.
Features
Typical 90mV dropout voltage at 150mA.
Guaranteed 500mA output over the full
operating temperature range.
Low 300mV typical dropout voltage at full load.
Extremely tight load and line regulation.
Low temperature coefficient.
Current and thermal limiting.
No-load stability.
Standard SOT-89-3 package.
Pin Configuration
1
2
3
SOT-89
Top view
Applications
Active SCSI terminators.
Post regulators for switching supplies.
Battery chargers.
High-efficiency linear power supplies.
Computer motherboard, display, graphic card
DC/DC converter, such as 5V to 3.3V, 3.3V to
2.8V or 3.3V to 2.5V.
Typical Application
Control
Logic
1.25V Ref
Over Current
Protection
Thermal
Protection
Vout
5V
3.3V
Vin
gnd
gnd
gnd
C0
C=10u
C1
R2
rload
C=10u
M0
Ordering Information
CYT6118 _ _ _
PIN (1=>3): 1. G: OUT/GND/IN
Package Type: 1. K: SOT-89-3L
Output Voltage: 1. A: VOUT = 3.3V
2. B: VOUT = 2.8V
3. C: VOUT = 2.5V
4. D: VOUT = 1.8V
5. E: VOUT = 1.5V
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