ISL80102 Datasheet, PDF (1/16 Pages) Intersil Corporation – High Performance 2A and 3A LDOs

High Performance 2A and 3A LDOs
ISL80102, ISL80103
The ISL80102 and ISL80103 are low voltage,
high-current, single output LDOs specified for 2A and 3A
output current, respectively. These parts operate from
input voltages of 2.2V to 6V and are capable of providing
output voltages of 0.8V to 5V on the adjustable V_OUT
versions. Fixed output voltage options available in 0.8V,
1.2V, 1.5V, 1.8V, 2.5V, 3.3V and 5V. Other custom
voltage options available upon request.
For applications that demand in-rush current less than
current limit, an external capacitor on the in-rush set pin
provides adjustment. The ENABLE feature allows the part
to be placed into a low quiescent current shutdown
mode. Sub-micron CMOS process is utilized for this
product family to deliver the best in class analog
performance and overall value.
These CMOS LDOs will consume significantly lower
quiescent current as a function of load over bipolar LDOs,
which translates into higher efficiency and the ability to
consider packages with smaller footprints. Quiescent
current is modestly compromised to enable a leading
class fast load transient response, and hence a lower
total AC regulation band for an LDO in this category.
Pin Configuration
ISL80102, ISL80103
(10 LD 3X3 DFN)
TOP VIEW
V_{OUT 1}
V_OUT 2
SENSE/ADJ 3
PG 4
GND 5
10 ^VIN
9 V_IN
8 DNC
7 ENABLE
6 SS
Features
• 0.5% initial V_OUT Accuracy
• Designed for 2.2V to 6V Input Supply
• ±1.8% Guaranteed V_OUT Accuracy for Junction
Temperature Range from -40°C to +125°C
• 185mV Dropout @ 3A, 125mV Dropout @ 2A
• Fast Load Transient Response
• Rated Output Current Options of 2A and 3A
• Adjustable In-Rush Current Limiting
• Fixed and Adjustable V_OUT Options Available
• 65dB Typical PSRR
• Output Noise of 100µV_RMS between 300Hz to
300kHz
• PG Feature
• 900mV Enable Input Threshold
• Short-Circuit Current Protection
• 1A Peak Reverse Current
• Over-Temperature Shutdown
• Any Cap Stable with Minimum 10µF Ceramic
• Available in a 10 Ld DFN Package and soon to follow
TO220-5, TO263-5 and SOT223-5 (1A and 2A
versions)
• Pb-Free (RoHS Compliant)
Applications*(see page 15)
• DSP, FPGA and µP Core Power Supplies
• Noise-Sensitive Instrumentation Systems
• Post Regulation of Switched Mode Power Supplies
• Industrial Systems
• Medical Equipment
• Telecommunications and Networking Equipment
• Servers
• Hard Disk Drives (HD/HDD)
September 30, 2009
FN6660.0
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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