ISL9000AMRNCEP Datasheet, PDF (1/2 Pages) Intersil Corporation – Dual LDO with Low Noise, Very High PSRR and Low IQ

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Data Sheet
ISL9000AMRNCEP
December 12, 2007
FN6620.0
Dual LDO with Low Noise, Very High
PSRR and Low I_Q
ISL9000AMRNCP is a high performance dual LDO capable
of sourcing 100mA current from each output. It has a low
standby current and very high PSRR and is stable with
output capacitance of 1µF to 10µF with ESR of up to 200mΩ.
The device integrates an individual Power-On-Reset (POR)
function for each output. The POR delay for VO2 can be
externally programmed by connecting a timing capacitor to
the CPOR pin. The POR delay for VO1 is internally fixed at
approximately 2ms. A reference bypass pin is also provided
for connecting a noise filtering capacitor for low noise and
high-PSRR applications.
The quiescent current is typically only 42µA with both LDO’s
enabled and active. Separate enable pins control each
individual LDO output. When both enable pins are low, the
device is in shutdown, typically drawing less than 0.1µA.
Output voltage for the LDO are VOUT1 = 3.3V and
VOUT2 = 1.8V.
Device Information
The specifications for an Enhanced Product (EP) device are
defined in a Vendor Item Drawing (VID), which is controlled
by the Defense Supply Center in Columbus (DSCC).
“Hot-links” to the applicable VID and other supporting
application information are provided on our website.
Pinout
ISL9000AMNCEP
(10 LD 3X3 DFN)
TOP VIEW
VIN 1
EN1 2
EN2 3
CBYP 4
CPOR ⁵
10 VO1
9 VO2
8 _POR2
7 POR1
6 GND
Features
• Integrates Two 100mA High Performance LDO’s
• I_OUT per Channel is 50mA at T_J = +150°C
• Excellent Transient Response to Large Current Steps
• ±1.8% Accuracy Over all Operating Conditions
• Excellent Load Regulation:
< 0.1% Voltage Change Across Full Range of Load
Current
• Low Output Noise: Typically 30µV_rms @ 100µA (1.5V)
• Very High PSRR: 90dB @ 1kHz
• Extremely Low Quiescent Current: 42µA (both LDOs
active)
• Wide Input Voltage Capability: 2.3V to 5.5V
• Low Dropout Voltage: Typically 200mV @ 100mA
• Stable with 1µF to 10µF Ceramic Capacitors
• Separate Enable and POR Pins for Each LDO
• Soft-Start and Staged Turn-On to Limit Input Current
Surge During Enable
• Current Limit and Overheat Protection
• Tiny 10 Ld 3x3mm DFN Package
• -55°C to +125°C Operating Temperature Range
Applications
• PDAs, Cell Phones and Smart Phones
• Portable Instruments, MP3 Players
• Handheld Devices including Medical Handheld
Ordering Information
VENDOR PART
NUMBER
(Notes 1, 2)
VENDOR ITEM
DRAWING
PART
MARKING
VO1
VO2
VOLTAGE VOLTAGE TEMP RANGE
(V)
(V)
(°C)
PACKAGE
PKG
DWG. #
ISL9000AMRNCEP V62/08609-01XB
DKTA
3.3
1.8
-55 to +125 10 Ld 3x3 DFN L10.3x3C
NOTES:
1. Add -T to part number for tape and reel.
2. Devices must be procured to the VENDOR PART NUMBER.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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