CYT8117 Regulators Datasheet

CYT8117 Datasheet, PDF, Equivalent


Part Number

CYT8117

Description

1A Positive Voltage Regulators

Manufacture

CYT

Total Page 9 Pages
Datasheet
Download CYT8117 Datasheet


CYT8117
1A positive Voltage Regulator
Description
The CYT8117-ADJ and CYT8117-1.2,-1.5, -1.8,
-2.5, -3.3 and -5 are low dropout three-terminal
regulators with 1A output current capability.
These devices have been optimized for low
voltage where transient response and minimum
input voltage are critical. The 2.85V version is
designed specifically to be used in Active
Terminators for SCSI bus.
On-chip thermal limiting provides protection
against any combination of overload and ambient
temperatures that would create excessive
junction temperatures.
Unlike PNP type regulators where up to 10% of
the output current is wasted as quiescent current,
the quiescent current of the CYT8117 flows into
the load, increasing efficiency.
The CYT8117 series regulators are available in
the industry-standard SOT-223, power packages.
Pin Configuration
CYT8117
Features
z Low dropout voltage
z Load regulation: 0.05% typical
z Optimized for Low Voltage
z On-chip thermal limiting-Standard SOT223
packages
z Three-terminal adjustable or fixed low
dropout1.2V,1.5V,1.8V, 2.5V, 3.3V ,5V , ADJ
. regulators
z ROHS Compliant and 100% Lead(Pb)-Free
Application
z Active SCSI terminators
z High efficiency linear regulators
z Post regulators for switching supplies
z Battery chargers
z 12V to 5V linear regulators
z Motherboard clock supply
Figure 1. Pin Assignments of CYT8117
Ordering Information
Device
CYT8117TXXLF
Marking
CYT8117TXXLF
CYT8117TALF
CYT8117TALF
Package
SOT-223
(Lead-free)
Vout
Fixed output voltages; XX denotes voltage
options (1.2V,1.5V,1.8V, 2.5V,3.3V and 5.0V)
Adjustable output voltage.
2008-12-03
SHENZHEN CYT OPTO-ELECTRONIC TECHNOLOGY CO.,LTD
1
www.szcyt.com

CYT8117
Absolute Maximum Rating
Parameter
Vin
(VIN– VOUT) * IOUT
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 10 sec.)
CYT8117
Min.
0
-65
Max.
18
See Figure 2
125
150
300
Unit
V
VIN-VOUT (V)
Figure 2. Absolute Maximum Safe Operating Area
Block Diagram
Figure 3. Block Diagram of CYT8117
2008-12-09
SHENZHEN CYT OPTO-ELECTRONIC TECHNOLOGY CO.,LTD
2
www.szcyt.com


Features www.DataSheet4U.com 1A Positive Voltage Regulators (Preliminary) Description T he CYT8117 series of high performance l ow dropout voltage regulators are desig ned for applications that require effic ient conversion and fast transient resp onse. CYT8117 Features ¾ ¾ ¾ ¾ ¾ Tab is Vout Low Dropout Performance. Guaranteed 1A Output Current. Wide Inpu t Supply Voltage Range. Over-temperatur e and Over-current Protection. Fixed or Adjustable Output Voltage. Rugged 3KV ESD withstand capability. Available in SOT-223 Packages. Pin Configuration ¾ 1 2 3 Application In Adj/Gnd Out Front View ¾ ¾ ¾ ¾ Active SCS I Terminators. High Efficiency Linear R egulators. 5V to 3.3V Linear Regulators Motherboard Clock Supplies. SOT-223 Ordering Information Device CYT8117TXX CYT8117TA CYT8117TXXLF CYT8117TALF SOT- 223 (Lead-free) Package VOUT Volts Fixe d output voltages; XX denotes voltage o ptions (1.5V, 1.8V, 2.5V, SOT-223 3.0V, and 3.3V). Adjustable output voltage. Fixed output voltages; XX denotes v.
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