LM1117L3 Datasheet, PDF (1/4 Pages) Cystech Electonics Corp. – 1A Low Dropout Positive Voltage Regulator

CYStech Electronics Corp.
1A Low Dropout Positive Voltage Regulator
LM1117L3
Spec. No. : C506L3
Issued Date : 2003.03.22
Revised Date :2005.10.07
Page No. : 1/4
Features
●Adjustable or Fixed Output
●Output Current of 1A
●Low Dropout, 1.3V max at 1A Output Current
●0.04% Line Regulation
●0.2% Load Regulation
●100% Thermal Limit Burn-in
●Fast Transient Response
Description
The LM1117 series of positive adjustable and fixed
regulators are designed to provide 1A with high
efficiency. All internal circuitry is designed to
operate down to 1.3V input to output differential.
On-chip trimming adjusts the reference voltage to
1%.
Applications
● High Efficiency Linear Regulators
● Post Regulators for Switching Supplies
● Adjustable Power Supply
Typical Application Data
Fixed Voltage Regulator
VIN>4.75V
C1
10μF Tant
3
IN
TAB
2
OUT
GND
1
Adjustable Voltage Regulator
VOUT=3.3V
+
C2
10μF Tant.Min
VIN>4.75V
TAB
IN
OUT
ADJ
+
C1
10μF, Tant
VOUT=3.45V
+
C2
10μF Tant.Min
VOUT=VREF×(1+R2/R1)+IADJ×R2
Notes:
1) C1 needed if device is far from filter capacitors
2) C2 minimum value required for stability
R2
232 Ohm,1%
LM1117L3
CYStek Product Specification