ISL78301 Datasheet, PDF (1/10 Pages) Intersil Corporation – 40V, Low Quiescent Current, 150mA Linear Regulator for Automotive Applications

40V, Low Quiescent Current, 150mA Linear Regulator
for Automotive Applications
ISL78301
The ISL78301 is a high voltage, low quiescent current linear
regulator ideally suited for “always-on” and “keep alive”
automotive applications. The ISL78301 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 ISL78301 is available in a 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 2µA of supply current. The
device features over-temperature shutdown and current limit
protection.
The ISL78301 is both AEC-Q100 qualified and fully TS16949
compliant. It is rated over the -40°C to +125°C automotive
temperature range and is available in a 14 Ld HTSSOP with an
exposed pad package.
Applications
• Automotive
• Industrial
• Telecommunications
Features
• Optimized for “Always-on” Automotive Applications
• 18µA Typical Quiescent Current
• Guaranteed 150mA Output Current
• Operates Through Cold Crank Down to 3V
• 40V Tolerant Logic Level (TTL/CMOS) Enable Input
• 2µA of Typical Shutdown Current
• Low Dropout Voltage of 295mV at 150mA
• 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 14 Ld Exposed Pad HTSSOP Package
• AEC-Q100 Qualified
• 5kV ESD HBM Rated
• Pb-Free (RoHS Compliant)
VIN = 14V
CIN
0.1µF
IN
EN
(ISL78301)
OUT
VOUT = 12V
R1
ADJ
COUT
10µF
R2
GND
FIGURE 1. TYPICAL APPLICATION - ADJ VERSION
25
VIN = 14V
CIN
0.1µF
IN
EN
(ISL78301)
OUT
VOUT = 5V
COUT
10µF
GND
FIGURE 2. TYPICAL APPLICATION - FIXED VERSION
20
15
10
5
0
-50
0
50
100
150
TEMPERATURE (°C)
FIGURE 3. QUIESCENT CURRENT vs LOAD CURRENT (ADJ VERSION AT UNITY GAIN) V_IN = 14V
October 21, 2011
1
FN6705.0
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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