High Performance 2A and 3A LDOs
ISL80102, ISL80103
Features
• 0.5% initial V
Accuracy
The ISL80102 and ISL80103 are low voltage,
OUT
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
• Designed for 2.2V to 6V Input Supply
• ±1.8% Guaranteed V Accuracy for Junction
OUT
Temperature Range from -40°C to +125°C
• 185mV Dropout @ 3A, 125mV Dropout @ 2A
• Fast Load Transient Response
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.
• Rated Output Current Options of 2A and 3A
• Adjustable In-Rush Current Limiting
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.
• Fixed and Adjustable V
• 65dB Typical PSRR
Options Available
OUT
• Output Noise of 100µV
300kHz
between 300Hz to
RMS
• PG Feature
• 900mV Enable Input Threshold
• Short-Circuit Current Protection
• 1A Peak Reverse Current
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.
• 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)
Pin Configuration
• Pb-Free (RoHS Compliant)
ISL80102, ISL80103
(10 LD 3X3 DFN)
TOP VIEW
Applications*(see page 15)
• DSP, FPGA and µP Core Power Supplies
• Noise-Sensitive Instrumentation Systems
• Post Regulation of Switched Mode Power Supplies
• Industrial Systems
V
V
V
V
1
2
3
4
5
10
9
OUT
OUT
IN
IN
SENSE/ADJ
PG
DNC
8
7
ENABLE
SS
• Medical Equipment
GND
6
• Telecommunications and Networking Equipment
• Servers
• Hard Disk Drives (HD/HDD)
September 30, 2009
FN6660.0
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Copyright Intersil Americas Inc. 2009. All Rights Reserved
1
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