DATASHEET
High Performance 2A and 3A Linear Regulators
ISL80102, ISL80103
The ISL80102 and ISL80103 are low voltage, high-current, single
output LDOs specified for 2A and 3A output current, respectively.
These LDOs operate from the input voltages of 2.2V to 6V and
are capable of providing the output voltages of 0.8V to 5.5V on
Features
• Stable with ceramic capacitors (Note 11)
• 2A and 3A output current ratings
• 2.2V to 6V input voltage range
the adjustable V
available in 1.8V, 2.5V. Other custom voltage options available
upon request.
versions. Fixed output voltage options are
• ±1.8% V
OUT
accuracy guaranteed over line, load and
OUT
T = -40°C to +125°C
J
• Very low 120mV dropout voltage at 3A (ISL80103)
For applications that demand in-rush current less than the
current limit, an external capacitor on the soft-start pin provides
adjustment. The ENABLE feature allows the part to be placed into
a low quiescent current shutdown mode. A submicron BiCMOS
process is utilized for this product family to deliver the
best-in-class analog performance and overall value.
• Fixed and adjustable V
OUT
versions
• Very fast transient response
• Excellent 62dB PSRR
• 49µV
output noise
RMS
• Power-good output
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. The quiescent current has been 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.
• Adjustable in-rush current limiting
• Short-circuit and over-temperature protection
• Available in a 10 Ld DFN
Applications
• Servers
• Telecommunications and networking
• Medical equipment
• Instrumentation systems
• Routers and switchers
ISL80102, ISL80103
2.5V ±10%
1.8V ±1.8%
1
2
9
V
OUT
V
V
V
V
V
IN
OUT
IN
IN
C
10
OUT
C
IN
10µF
OUT
10µF
R
PG
100kΩ
ON
3
4
SENSE
PG
7
6
ENABLE
SS
OFF
PGOOD
*C
SS
GND
5
*CSS is optional, (see Note 12 on page 5).
FIGURE 1. TYPICAL APPLICATION FOR FIXED OUTPUT VOLTAGE VERSION
April 8, 2016
FN6660.7
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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