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PDF ISL78307 Data sheet ( Hoja de datos )
| Número de pieza | ISL78307 | |
| Descripción | 50mA Linear Regulator | |
| Fabricantes | Intersil | |
| Logotipo |  |
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DATASHEET
40V, Low Quiescent Current, 50mA Linear Regulator for
Automotive Applications
ISL78307
The ISL78307 is a high voltage, low quiescent current linear
regulator ideally suited for “always-on” and “keep alive”
automotive applications. The ISL78307 operates from an input
voltage of +6V to +40V under normal operating conditions and
operates down to +3V under a cold crank. It consumes only 18µA
of quiescent current at no load on the adjustable version.
The ISL78307 is available in fixed 3.3V, 5V and adjustable output
voltage (2.5V to 12V) options. It features an EN pin that can be
used to put the device into a low-quiescent current shutdown
mode where it draws only 1.8µA of supply current. The device
features over-temperature shutdown and current limit protection.
The ISL78307 is AEC-Q100 qualified. It is rated over the -40°C to
+125°C automotive temperature range and is available in an
8 Ld EPSOIC with exposed pad package.
Applications
• Automotive
• Industrial
• Telecom
Features
• Optimized for “always-on” automotive applications
• 18µA typical quiescent current
• Guaranteed 50mA output current
• Operates through cold crank down to 3V
• 40V tolerant logic level (TTL/CMOS) enable input
• 1.8µA of typical shutdown current
• Low dropout voltage of 120mV at 50mA
• Fixed +3.3V, +5.0V and adjustable output voltage options
• Stable operation with 10µF output capacitor
• Thermal shutdown and current limit protection
• -40°C to +125°C operating temperature range
• Thermally enhanced 8 Ld exposed pad SOIC package
• AEC-Q100 qualified
• 6kV ESD HBM rated
• Pb-free (RoHS compliant)
VIN = 14V
CIN
0.1µF
IN
EN
(ISL78307)
OUT
VOUT = 12V
R1
ADJ
COUT
10µF
GND
R2
FIGURE 1. TYPICAL APPLICATION - ADJ VERSION
VIN = 14V
CIN
0.1µF
IN
EN
(ISL78307)
OUT
VOUT = 5V
COUT
10µF
GND
FIGURE 2. TYPICAL APPLICATION - FIXED VERSION
70
60
LOAD = 50mA
50
40
30
20
LOAD = 0mA
10
0
-50 0 50 100 150
TEMPERATURE (°C)
FIGURE 3. QUIESCENT CURRENT vs LOAD CURRENT (ADJ VERSION AT UNITY GAIN). VIN = 14V
April 7, 2015
FN7658.3
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2011, 2013, 2015. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
1 page  
ISL78307
Typical Performance Curves VIN = 14V, IOUT = 1mA, VOUT = 5V, TJ = +25 °C unless otherwise specified.
80
70
+125°C
60
50
40
30
+25°C
-40°C
20
10
0
0 10 20 30 40
LOAD CURRENT (mA)
FIGURE 4. QUIESCENT CURRENT vs LOAD CURRENT
50
30
+125°C
25
20
+25°C
-40°C
15
10
5
0 0 10 20 30 40
INPUT VOLTAGE (V)
FIGURE 5. QUIESCENT CURRENT vs INPUT VOLTAGE (NO LOAD)
3.0
2.5
VIN = 40V
2.0
1.5
VIN = 14V
1.0
0.5
0
-50 0 50 100 150
TEMPERATURE (°C)
FIGURE 6. SHUTDOWN CURRENT vs TEMPERATURE (EN = 0)
0.010
0.005
5V OPTION
0
3.3V OPTION
-0.005
-0.010
-50
0 50
TEMPERATURE (°C)
100
150
FIGURE 7. OUTPUT VOLTAGE vs TEMPERATURE (LOAD = 50mA)
5.100
5.075
5.050
5.025
+125°C
+25°C
5.000
4.975
-40°C
4.950
4.925
4.900
0
10 20 30 40
LOAD CURRENT (mA)
FIGURE 8. OUTPUT VOLTAGE vs LOAD CURRENT
50
Submit Document Feedback
5
EN at 500mV/DIV
VOUT at 1V/DIV
TIME at 500µs/DIV
FIGURE 9. START-UP WAVEFORM
FN7658.3
April 7, 2015
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet ISL78307.PDF ] | |
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