DATASHEET
ISL80102, ISL80103
FN6660
Rev 8.00
September 2, 2016
High Performance 2A and 3A Linear Regulators
Features
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 the adjustable VOUT versions. Other custom
voltage options available upon request.
• Stable with ceramic capacitors (Note 11)
• 2A and 3A output current ratings
• 2.2V to 6V input voltage range
• ±1.8% VOUT accuracy guaranteed over line, load and
TJ = -40°C to +125°C
For applications that demand inrush 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.
• Very low 120mV dropout voltage at 3A (ISL80103)
• Very fast transient response
• Excellent 62dB PSRR
• 49µVRMS output noise
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.
• Power-good output
• Adjustable inrush 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%
9
VIN
10
CIN
10µF
1.8V ±1.8%
1
VIN
VIN
VOUT
VOUT
VOUT
2
COUT
10µF
RPG
ON
7
OFF
6
*CSS
SENSE
ENABLE
3
4
SS
PG
100kΩ
PGOOD
GND
5
*CSS is optional, (see Note 12 on page 5).
FIGURE 1. TYPICAL APPLICATION FOR FIXED OUTPUT VOLTAGE VERSION
FN6660 Rev 8.00
September 2, 2016
Page 1 of 16
