TIGER ELECTRONIC CO.,LTD
Product specification
5A LOW DROPOUT POSITIVE REGULATOR
Features
1. Dropout Voltage 1.3V at 5A Output Current. 2. Fast Transient Response. 3. Extremely Tight Line and Load Regulation. 4. Current Limiting and Thermal Protection. 5. Adjustable Output Voltage or Fixed 1.5V, 1.8V, 2.5V, 3.3V, 5.0V. 6. Standard 3-Pin Power Packages.
LM1084-XX LM1084-XX
TO-220
TO-263
DESCRIPTION
The LM1084 is a low dropout three terminal regulator with 5A output current capability. The output voltage is adjustable with the use of a resistor divider or fixed 1.5V, 1.8V, 2.5V, 3.3V and 5.0V. Dropout voltage is guaranteed to be at maximum of 1.4V with the maximum output current. Its low dropout voltage and fast transient response make it ideal for low voltage microprocessor applications. Current limit and thermal protection provide protection against any overload condition that would create excessive junction temperatures.
TO-252
TO-263-2L
1. Adj(COM) 2. Output 3. Input
Electrical Characteristics ( Ta = 25 OC)
(VIN=5V, TJ=25°C, IO=10mA, unless otherwise specified) (Note1)
PARAMETER
Reference Voltage
TEST CONDITIONS
LM1084 (ADJ) LM1084-15, VIN=4.5V LM1084-18, VIN=4.8V
MIN
1.225 1.470 1.764 2.450 3.235 4.90 -
TYP
1.25 1.50 1.80 2.50 3.30 5.00 0.015
MAX
1.275 1.530 1.836 2.55 3.365 5.10 0.2 0.6
UNIT
Output Voltage
LM1084-25, VIN=5.5V LM1084-33, VIN=6.3V LM1084-50, VIN=7.0V ADJ : 2.65V≤ VIN ≤7V
V
Line Regulation Load Regulation Dropout Voltage Current Limit GND Current (Fix) Adjusted Pin Current Adjusted Pin Current Change (ΔIADJ) Temperature Stability Minimum Load Current RMS Output Noise (% of VOUT) Ripple Rejection Ratio
VOUT=1.25V Fix : VOUT+1.4V≤ VIN ≤7V 10mA < IO < 5A ΔVOUT, ΔVREF=1% 10mA ≤ IO ≤ 5A
% % V A
1.3 5.0 6.0
1.4
2.65V ≤ VIN ≤ 7V 2.65V ≤ VIN ≤ 7V 2.65V ≤ VIN ≤ 7V IO=0.5A
2.0 55 0.2 0.5 5.0 0.003
10 120 5.0 10
mA uA uA % mA % dB
120Hz input ripple COUT=25μF (VIN -VOUT)=3V
60
72
Note: Specifications are production tested at TA=25°C. Specifications over the -40°C to 85°C operating temperature range are assured by design, characterization and correlation with Statistical Quality Controls (SQC).
LM1084T-XXV *TO-220 LM1084SX3-XXV *TO-263 LM1084SX2-XXV *TO-263-2L LM1084J-XXV *TO-252
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