ISL80101 Datasheet, PDF (1/15 Pages) Intersil Corporation – High Performance 1A LDO

High Performance 1A LDO
ISL80101
The ISL80101 ia a low-voltage, high-current, single
output LDO specified for 1A output current. This part
operates from input voltages of 2.2V to 6V and is 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 or a longer delay for a valid V_OUT, an
external capacitor on the soft-start pin provides
adjustment. A supply independent ENABLE signal 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 best in class analog
performance and overall value.
This CMOS LDO 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 leading class
fast load transient response and hence total AC
regulation band for an LDO in this category.
Applications*(see page 14)
• 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)
Features
• 0.2% initial V_OUT Accuracy
• Designed for 2.2V to 6V Input Supply
• Dropout Typically 130mV at 1A
• Fast Load Transient Response
• Rated Output Current Options of 1A
• Adjustable In-Rush Current Limiting
• Fixed and Adjustable V_OUT Options Available
• 58dB Typical PSRR
• Output Noise of 100µV_RMS between 300Hz to
300kHz
• PG Feature
• 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 Ld DFN Package and soon to follow
TO220-5, TO263-5 and SOT223-5
• Pb-Free (RoHS Compliant)
Pin Configuration
ISL80101
(10 LD 3X3 DFN)
TOP VIEW
VOUT ₁
VOUT 2
SENSE/ADJ 3
PG 4
GND 5
10 ^VIN
9 VIN
8 NC
7 ENABLE
6 SS
December 21, 2009
FN6931.0
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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