SE5117 Datasheet, PDF (1/6 Pages) Estek Electronics Co. Ltd – Efficient linear voltage regulator

Description
The SE5117 is an efficient linear
voltage regulator. It has extra low dropout voltage.
At light loads the typical dropout voltage is 5.5mV,
and at full load the typical dropout voltage is
650mV. The output voltage accuracy is better than
2%.
The SE5117 has low ground current, so it can
help prolong battery life. The SE5117 is specially
designed for hand-held, battery-powered devices.
Pin Configuration
SE5117
Features
Typical 90mV dropout voltage at 150mA.
Guaranteed 1A output over the full operating
temperature range.
650mV typical dropout voltage at full load.
Extremely tight load and line regulation.
Low temperature coefficient.
Current and thermal limiting.
No-load stability.
Standard SOT-223 package.
Front View
1
2
3
SOT-223
Application
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 3.3V to 2.8V or 3.3V
to 2.5V.
Ordering Information
SE5117 _ _ _
Application Diagram
5V
Vin
C0
C=10u
gnd
M0
Control
Logic
1.25V Ref
Over Current
Protection
Thermal
Protection
gnd
Vout
3.3V
C1
C=10u
R2
rload
gnd
PIN (1=>3): 1. G: OUT/GND/IN
Package Type: 1. S: SOT-
223
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
6. F: VOUT = 3.0V
1
BEIJING ESTEK ELECTRONICS CO.,LTD