ISL80102_11 Datasheet, PDF (1/15 Pages) Intersil Corporation – High Performance 2A and 3A Linear Regulators

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 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 are
available in 1.8V, 2.5V, 3.3V and 5V. Other custom voltage
options available upon request.
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 sub-micron BiCMOS
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.
Features
• Stable with all Capacitor Types (Note 11)
• 2A and 3A Output Current Ratings
• 2.2V to 6V Input Voltage Range
• ±1.8% V_OUT Accuracy Guaranteed Over Line, Load and
T_J = -40°C to +125°C
• Very Low 120mV Dropout Voltage at 3A (ISL80103)
• Fixed and Adjustable V_OUT Versions
• Very Fast Transient Response
• Excellent 62dB PSRR
• 100µV_RMS Output Noise
• Power-Good Output
• Adjustable In-Rush Current Limiting
• Short Circuit and Over-Temperature Protection
• Available in a 10 Ld DFN (now), 5 Ld TO220 and 5 Ld TO263
(soon)
Applications
• Servers
• Telecommunications and Networking
• Medical Equipment
• Instrumentation Systems
• Routers and Switchers
2.5V ±10%
V_IN
C_IN
10µF
9
VIN
10
VIN
ISL80102, ISL80103
1
VOUT
2
VOUT
ON
OFF
*C_SS
7
ENABLE
6
SS
*CSS is optional, (see Note 12) on page 5.
GND
5
SENSE ³
4
PG
FIGURE 1. TYPICAL APPLICATION
C_OUT
10µF
1.8V ±1.8%
V_OUT
R_PG
100kΩ
PGOOD
March 24, 2011
1
FN6660.2
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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