1
FN6620.1
ISL9000AM
Dual LDO with Low Noise, Very High
PSRR and Low IQ
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 Logistics Agency (DLA). “Hot-links” to the
applicable VID and other supporti ng application information
are provided on our website.
Pinout ISL9000AMNCEP
(10 LD 3X3 DFN)
TOP VIEW
Features
• Integrates Two 100mA High Performance LDO’s
•I
OUT per Channel is 50mA at TJ = +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 30µVrms @ 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: Ty pically 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
VIN
EN1
EN2
CBYP
CPOR
VO1
VO2
POR2
POR1
GND
2
3
4
1
5
9
8
7
10
6
Ordering Information
VENDOR PART
NUMBER
(Notes 1, 2) VENDOR ITEM
DRAWING PART
MARKING
VO1
VOLTAGE
(V)
VO2
VOLTAGE
(V) TEMP RANGE
(°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.
Data Sheet
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2007, 2011. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
November 11, 2011