LM1117 Datasheet, PDF (1/8 Pages) National Semiconductor (TI) – 800mA Low-Dropout Linear Regulator

1A LOWDROP OUT VOLTAGE REGULATOR (ADJUSTABLE & FIXED)
LM1117
FEATURES
SOT-223 PKG (FRONT VIEW)
● Output Current up to 1 A
● Low Dropout Voltage ( 700mV at 1A Output Current )
● Three Terminal Adjustable or Fixed 1.5V, 1.8V, 2.5V, 2.85V,
3.0V, 3.3V, 5.0V
● 2.85V Device for SCSI-II Active Terminator
● 0.04% Line Regulaion, 0.1% Load Regulation
● Very Low Quiescent Current
● Internal Current andTerminal Limit
● Logic-Controlled Electronics Shutdown
● Surface Mount Package SOT-223 & TO-263 (D2-Pack)
● 100% Thermal Limit Burn-In
APPLICATION
1
2
3
PIN FUNCTION
1. Adj/Gnd
2. Vout
3. Vin
TO-263 (D2 PKG, FRONT VIEW)
PIN FUNCTION
1. Adj/Gnd
2. Vout
3. Vin
● Active SCSI Terminators
● Portable/Plan Top/Notebook Computers
● High Efficiency Linear Regulators
● SMPS Post Regulators
● Mother B/D Clock Supplies
● Disk Drives
● Battery Chargers
DESCRIPTION
123
ORDERING INFORMATION
Device (Marking)
Package
LM1117S
LM1117S-XX
SOT-223
LM1117T
LM1117T-XX
TO-263 (D2)
(X=Output Voltage=1.5V, 1.8V, 2.5V, 2.85V,
'3.0V, 3.3V, 5.0V, Adjustable=AD)
The LM1117 is a low power positive-voltage regulator designed to meet 1A output current and comply
with SCSI-II specifications with a fixed output voltage of 2.85V. This device is an excellent choice for use
in battery-powered applications, as active terminators for the SCSI bus, and portable computers.
The LM1117 features very low quiescent current and very low dropout voltage of 700mV at a full load and
lower as output current decreases. LM1117 is available as an adjustable or fixed 1.5V, 1.8V, 2.5V, 2.85V,
3.0V, 3.3V, and 5.0V output voltages.
The LM1117 is offered in a 3-pin surface mount package SOT-223 & TO-263. The output capacitor of
10㎌ or larger is needed for output stability of LM1117 as required by most of the other regulator circuits.
ABSOLUTE MAXIMUM RATINGS
CHARACTERISTIC
DC Input Voltage
Lead Temperature (Soldering, 5 Seconds)
Storage Temperature Range
Operating Junction Temperature Range
SYMBOL
V_IN
T_SOL
T_STG
T_OPR
MIN.
-65
0
MAX.
7
260
150
125
UNIT
V
℃
℃
℃
HTC
1