800mA LOW DROPOUT POSITIVE REGULATORS
ADJUSTABLE AND FIXED 2.85V, 3.30V, 5.00V
PRELIMINARY INFORMATION
TCL1117
TCL1117
TCL1117-2.85
TCL1117-2.85
TCL1117-3.30
TCL1117-3.30
TCL1117-5.00
TCL1117-5.00
800mA LOW DROPOUT POSITIVE REGULATORS
ADJUSTABLE AND FIXED 2.85V, 3.30V, 5.00V
FEATURES
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Space-saving SOT-223 Package
Pin Compatible with Older Adjustable 3 Terminal
Regulators
Adjustable or Fixed Voltages of 2.85V, 3.30V or 5.00V
High Output Current ..................................... 800mA
Low Dropout Voltage ............ 1.2V at I
OUT
= 800mA
Guaranteed Dropout Voltage at Multiple Current
Levels
Line Regulation (Max) ...................................... 0.2%
Load Regulation (Max) ..................................... 0.4%
GENERAL DESCRIPTION
The TCL1117 is a low-dropout positive voltage regula-
tor (LDO) with 800mA output current capability. It is available
in fixed and adjustable output voltage versions, 2.85V (ac-
tive SCSI terminators), 3.30V and 5.00V. Output/reference
voltage accuracy is guaranteed to
鹵1.0%.
Over-current
protection is integrated onto the chip. Dropout is specified
at 1.2V maximum at full rated output current and less than
1.0V at low loads (<100mA). The SOT-223 package makes
the TCL1117 especially attractive for tight physical layouts.
For stability, a 10碌F output capacitor is required. The
TCL1117 is an NPN-based design which has significantly
lower unused quiescent current than similar PNP-based
regulators.
PIN CONFIGURATIONS
SOT-223
3-Lead Package
FRONT VIEW
APPLICATIONS
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Active SCSI Terminators
High Efficiency Linear Regulators
Post Regulators for Switching Supplies
Battery Chargers
5V - 3.3V Linear Regulators
DDPAK-3
FRONT VIEW
ORDERING INFORMATION
Part Number*
TCL1117-ADJCDB
TCL1117-2.85CDB
TCL1117-3.30CDB
TCL1117-5.00CDB
TCL1117-ADJCEB
TCL1117-2.85CEB
TCL1117-3.30CEB
TCL1117-5.00CEB
Package
SOT-223-3
SOT-223-3
SOT-223-3
SOT-223-3
DDPAK-3
DDPAK-3
DDPAK-3
DDPAK-3
Part Marking
1117
11172
11173
11175
IN
TAB IS V
OUT
3
2
OUT
1
2
3
1
ADJ/GND
ADJ/GND
OUT
*Ambient temperature range is determined by maximum operating
power dissipation and a maximum die temperature of 125擄C (see Power
Dissipation and Thermal Design Section).
TYPICAL APPLICATION
110鈩?/div>
IN
TCL1117-5.00
OUT
GND
110鈩?/div>
110鈩?/div>
18 to 27
LINES
4.75V to 5.25V
10碌F
22碌F
Active Terminator for SCSI-2 Bus
TCL1117-05 6/5/97
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TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices.
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