Sipex Corporation SPX3819T, SPX3819T-2.5, SPX3819T-3.3, SPX3819T-5.0, SPX3819T5 Datasheet
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SPX3819
500 mA, Low-Noise LDO Voltage Regulator
(ADVANCED INFORMATION)
FEATURES |
APPLICATIONS |
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• Ultra-Low Noise Output LDO |
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Battery Powered Systems |
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• 1% Initial Accuracy At 500mA |
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Cordless Telephones |
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Very Low Quiescent Current |
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Radio Control Systems |
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ADVANCED |
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Low Dropout Voltage (300mV At 500mA) |
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Portable/Palm Top/Notebook Computers |
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• Current & Thermal Limiting |
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Portable Consumer Equipment |
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Reverse-Battery Protection |
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Portable Instrumentation |
• Several Fix Output Voltages, 2.5, 3.3, 5.0V & Adjustable |
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Bar Code Scanners |
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Zero Off-Mode Current |
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SMPS Post-Regulator |
• Packages offered SO-8, TO-263, SOT-223, SOT-23 & TO-220 |
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• Pin Compatible to MIC5209 (Fixed Option Only) |
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PRODUCT DESCRIPTION
The SPX3819 is a low powered positive voltage regulator with ultra low noise output and very low voltage dropout. In addition, this device offers very low quiescent current of approximately 800uA at 100mA output. The SPX3819 initial tolerance is less than 1% max with logic compatible ON/OFF switching input. The unique feature of SPX3819 includes a reference bypass pin for the best results of low noise.
This device is an excellent choice for the use in battery-powered applications such as cordless telephones, radio control systems, and portable computers. When disable power consumption drop to nearly zero. This device has a very low output temperature coefficient, making it a low power voltage reference. The key features include protection against reversed battery, fold-back current limiting, and automotive load dump protection.
The SPX3819 is available in several fixed voltages 2.5V, 3.3V, 5.0V or adjustable output. This device is offered in SO-8, 3 and 5 pin TO-263, SOT-223, 5-pin SOT-23 & 3-pin TO-220. These packages offer all the features and adjustable output.
MARKING INFORMATION |
PIN CONNECTIONS |
(SOT-23 Only)
Voltage |
Marking |
TO-263-5 Package |
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TO-263-3 Package |
SOT-223 |
SOT-23-5 |
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ADJ |
A0XX |
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VIN |
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EN |
GND |
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2.5V |
A8XX |
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3.3V |
A1XX |
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SPX3819 |
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SPX3819 |
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SPX3819 |
3 |
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1 |
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5.0V |
A9XX |
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SPX3819 |
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XX Production Reference Code. |
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2 3 4 |
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1) |
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5 |
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EN |
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2) |
VIN |
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V |
GND |
V |
ADJ/BYP |
V |
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3) |
GND |
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OUT |
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IN |
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OUT |
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4) |
VOUT |
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Front View |
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Top View |
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5) |
ADJ/BYP |
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VIN |
GND VOUT |
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Top View |
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Front View |
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TO-220
SPX3819 |
VIN |
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VOUT |
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GND |
Front View
Rev. 10/30/00
SPX3819
ABSOLUTE MAXIMUM RATINGS
Power Dissipation...................................... |
Internally Limited |
Lead Temp. (Soldering, 5 Seconds) ............................ |
260°C |
Operating Junction Temperature Range ..... |
-40°C to +125°C |
Input Supply Voltage........................................ |
-20V to +20V |
Enable Input Voltage........................................ |
-20V to +20V |
RECOMMENDED OPERATING CONDITIONS
Input Voltage.................................................. |
+2.5V to+16V |
Operating Junction Temperature Range ..... |
-40°C to +125°C |
Enable Input Voltage............................................. |
0V to VIN |
ELECTRICAL CHARACTERISTICS
TJ = 25°C, VOUT + 1V, IL = 100 A, CL = 1 F, and VENABLE > 2.4V. Unless otherwise specified boldface applies over the junction temperature range
Parameter |
Test Conditions |
Typ |
Min |
Max |
Units |
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Output Voltage Tolerance |
IL = 100 A |
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-1 |
+1 |
% |
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IL = 500 A |
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-2 |
+2 |
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Output Voltage Temperature Coef. |
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57 |
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ppm/°C |
(∆V/∆T) |
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Line Regulation (∆V/V) |
VIN = VOUT + 1V to 16V |
0.04 |
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0.1 |
%/V |
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Load Regulation (∆V/V) |
IL = 0.1mA to 500mA |
0.05 |
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0.2 |
% |
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Dropout Voltage |
IL = 100 A |
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10 |
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60 |
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(VIN- VO) |
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80 |
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IL = 50 mA |
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125 |
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175 |
mV |
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250 |
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IL = 150 mA |
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180 |
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350 |
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450 |
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IL = 500 mA |
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340 |
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550 |
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700 |
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Quiescent Current (IGND) |
VENABLE < 0.6V |
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0.05 |
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A |
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VENABLE < 0.25V |
0.10 |
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8 |
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Ground Pin Current |
IL = 100 A |
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110 |
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150 |
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(IGND) |
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190 |
A |
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IL = 50 mA |
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360 |
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650 |
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900 |
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IL = 150 mA |
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1.3 |
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2.0 |
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2.5 |
mA |
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IL = 500 mA |
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13.0 |
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25.0 |
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30.0 |
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Ripple Rejection (PSRR) |
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55 |
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dB |
Current Limit (ILIMIT) |
VOUT = 0V |
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800 |
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950 |
mA |
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Output Noise (eNO) |
IL = 50mA, CL = 1.0 F |
390 |
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VRMS |
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(10Hz – 100KHz) |
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Input Voltage Level |
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Logic Low (VIL) |
OFF |
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0.6 |
V |
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Input Voltage Level |
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Logic High (VIH) |
ON |
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2 |
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V |
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ENABLE Input Current |
VIL < 0.6V |
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0.01 |
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2 |
A |
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VIH > 2.0V |
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2 |
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20 |
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Thermal Resistance |
TO-220 |
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Junction to Tab |
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3.0 |
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Junction to Ambient |
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60 |
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DD Package |
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Junction to Tab |
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3.0 |
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Junction to Ambient |
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60 |
°C/W |
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SOT-223 |
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Junction to Tab |
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15 |
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Junction to Ambient |
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156 |
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SOT-23-5 |
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Junction to Tab |
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N/A |
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Junction to Ambient |
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220 |
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SO-8 |
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Junction to Tab |
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N/A |
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Junction to Ambient |
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180 |
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Rev. 10/30/00
SPX3819
TYPICAL APPLICATION
VIN |
1 |
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5 |
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VOUT |
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+ |
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2 |
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+ |
GND |
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SPX3819 |
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3 |
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4 |
BYP |
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EN |
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(Optn.) |
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ENABLE may be tied directly to V IN |
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Rev. 10/30/00
SPX3819
Ground Current Vs. Load Current
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7.0 |
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6.0 |
3.3V Device |
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5.0 |
Vin = 4.3V |
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Gnd (mA) |
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CL = 1.0uF |
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4.0 |
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3.0 |
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I |
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2.0 |
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1.0 |
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0.0 |
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0 |
100 |
200 |
300 |
400 |
500 |
IL (mA)
Ground Current Vs. Input Voltage
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160 |
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150 |
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140 |
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130 |
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(uA) |
120 |
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110 |
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I Gnd |
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100 |
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3.3V Device |
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90 |
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IL = 100uA |
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80 |
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CL = 1.0uF |
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70 |
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60 |
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4 |
6 |
8 |
10 |
12 |
14 |
16 |
Vin (V)
Ground Current Vs. Load Current
(In Dropout)
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14.0 |
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12.0 |
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Gnd (mA) |
10.0 |
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8.0 |
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6.0 |
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I |
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4.0 |
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3.3V Device |
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2.0 |
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Vin = 4.3V |
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CL = 1.0uF |
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0.0 |
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0 |
100 |
200 |
300 |
400 |
500 |
IL (mA)
Output Voltage Vs. Input Voltage
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3.350 |
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3.345 |
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3.340 |
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3.335 |
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3.330 |
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(V) |
3.325 |
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3.320 |
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Vout |
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3.315 |
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3.310 |
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3.3V Device |
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3.305 |
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IL = 100uA |
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3.300 |
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CL = 1.0uF |
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3.295 |
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3.290 |
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4 |
6 |
8 |
10 |
12 |
14 |
16 |
Vin (V)
Dropout Voltage Vs. Load Current
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350 |
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300 |
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(mV) |
250 |
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200 |
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Dropout |
150 |
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100 |
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3.3V Device |
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Vin = 3.2V |
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50 |
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CL = 1.0uF |
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0 |
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0 |
100 |
200 |
300 |
400 |
500 |
IL (mA)
Output Voltage Vs. Load Current
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3.316 |
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3.314 |
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3.312 |
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3.3V Device |
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Vin = 4.3V |
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3.310 |
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CL = 1.0uF |
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(V) |
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3.308 |
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Vout |
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3.306 |
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3.304 |
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3.302 |
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3.300 |
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0 |
100 |
200 |
300 |
400 |
500 |
IL (mA)
Rev. 10/30/00
SPX3819
I Gnd (uA)
Ground Current Vs. Temperature
130
120
3.3V Device
110 Vin = 4.3V CL = 1.0uF
IL = 100uA
100 |
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90 |
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80 |
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70 |
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-40 |
-20 |
0 |
20 |
40 |
60 |
80 |
100 |
120 |
Temperature (Degree C)
Ground Current Vs. Temperature
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360 |
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340 |
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3.3V Device |
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320 |
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Vin = 4.3 |
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(uA) |
300 |
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CL = 1.0uF |
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IL = 50mA |
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280 |
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I Gnd |
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260 |
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240 |
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220 |
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200 |
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-40 |
-20 |
0 |
20 |
40 |
60 |
80 |
100 |
120 |
Temperature (Degree C)
Ground Current Vs. Temperature
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8.0 |
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7.5 |
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3.3V Device |
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(mA) |
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Vin = 4.3V |
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7.0 |
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CL = 1.0uF |
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I Gnd |
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IL = 500mA |
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6.5 |
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6.0 |
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-40 |
-20 |
0 |
20 |
40 |
60 |
80 |
100 |
120 |
Temperature (Degree C)
Ground Current in Dropout Vs. Temperature
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14.0 |
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13.5 |
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3.3V Device |
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13.0 |
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Vin = 4.3V |
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Gnd (mA) |
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CL = 1.0uF |
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12.5 |
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IL = 500mA |
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12.0 |
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I |
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11.5 |
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11.0 |
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10.5 |
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-40 |
-20 |
0 |
20 |
40 |
60 |
80 |
100 |
120 |
Temperature (Degree C)
Enable Voltage (On Threshold) Vs. Input Voltage
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1.30 |
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(V) |
1.25 |
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3.3V Device |
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CL =1.0uF |
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On Threshold |
1.20 |
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IL = 100uA |
|
1.15 |
|
|
|
|
|
|
|
1.10 |
|
|
|
|
|
|
|
VEN, |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1.05 |
|
|
|
|
|
|
|
1.00 |
|
|
|
|
|
|
|
4 |
6 |
8 |
10 |
12 |
14 |
16 |
Vin (V)
Output Voltage Vs. Temperature
|
3.400 |
|
|
|
|
|
|
|
|
|
3.380 |
|
|
|
|
|
3.3V Device |
|
|
|
3.360 |
|
|
|
|
|
Vin = 4.3V |
|
|
|
3.340 |
|
|
|
|
|
CL = 1.0uF |
|
|
|
|
|
|
|
|
IL = 500uA |
|
|
|
|
|
|
|
|
|
|
|
|
|
(V) |
3.320 |
|
|
|
|
|
|
|
|
3.300 |
|
|
|
|
|
|
|
|
|
Vout |
|
|
|
|
|
|
|
|
|
3.280 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3.260 |
|
|
|
|
|
|
|
|
|
3.240 |
|
|
|
|
|
|
|
|
|
3.220 |
|
|
|
|
|
|
|
|
|
3.200 |
|
|
|
|
|
|
|
|
|
-40 |
-20 |
0 |
20 |
40 |
60 |
80 |
100 |
120 |
Temperature (Degree C)
Rev. 10/30/00
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