ISL78310 Datasheet, PDF (1/13 Pages) Intersil Corporation – High Performance 1A LDO

High Performance 1A LDO
ISL78310
The ISL78310 is a low dropout voltage, high-current, single
output LDO specified for 1A output current. This part operates
from input voltages down to 2.2V and up to 6V. The part offers
fixed and external resistor adjustable output voltages from 0.8V
to 5V. Custom voltage options are available upon request.
For applications that desire to set the in-rush current to less than
the current limit of the part, or for applications that require
turn-on time control, an external capacitor can be placed on the
soft-start pin for maximum control. A supply-independent
ENABLE signal allows the part to be placed into a low quiescent
current shutdown mode. Sub-micron CMOS process is used for
this product family to deliver best-in-class analog performance
and overall value.
This CMOS LDO consumes significant lower quiescent (ground
pin) current as a function of load over bipolar LDOs, which
translates into higher efficiency and packages with smaller
footprints. Quiescent current is optimized to achieve a very fast
load transient response.
The ISL78310 is both AEC-Q100 rated and fully TS16949
compliant. The ISL78310 is rated for the automotive
temperature range (-40°C to +125°C).
Applications
• Core & I/O Power
• Camera Modules
• Post Regulation of Switched Supplies
• Radio Systems
• Infotainment Systems
Features
• 2.2V to 6V Input Supply
• 130mV Dropout Voltage Typical (at 1A)
• Fast Load Transient Response
• ±0.2% Initial V_OUT Accuracy
• Adjustable In-Rush Current Limiting
• 58dB Typical PSRR
• 63µV_RMS Output Noise at V_OUT = 1.8V
• Power-Good Feature
• 500mV Feedback Voltage
• Supply-Independent 1V Enable Input Threshold
• Short-Circuit Current Protection
• 1A Peak Reverse Current
• Over-Temperature Shutdown
• Any Cap Stable with Minimum 10µF Ceramic
• ±1.8% Guaranteed V_OUT Accuracy for Junction Temperature
Range from -40°C to +125°C
• Available in a 10 Lead DFN Package
• Pb-Free (RoHS Compliant)
• AEC-Q100 Tested
• TS16949 Compliant
Pin Configuration
ISL78310
(10 LD 3x3 DFN)
TOP VIEW
VOUT ₁
VOUT 2
SENSE/ADJ 3
PG 4
GND 5
PAD
10 ^VIN
9 VIN
8 NC
7 ENABLE
6 SS
February 17, 2011
1
FN7810.0
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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