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ISL9000 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 ISL9000
部品説明 Dual LDO
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 



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ISL9000 Datasheet, ISL9000 PDF,ピン配置, 機能
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Data Sheet
September 21, 2005
ISL9000
FN9217.0
Dual LDO with Low Noise, Very High
PSRR, and Low IQ
ISL9000 is a high performance dual LDO capable of
sourcing 300mA 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 200m.
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.
Several combinations of voltage outputs are standard.
Others are available on request. Output voltage options for
each LDO range from 1.2V to 3.6V.
Pinout
ISL9000
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 300mA high performance LDO’s
• 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 - 6.5V
• Low dropout voltage: typically 200mV @ 300mA
• Stable with 1-10µF 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
• -40°C to +85°C operating temperature range
• Pb-free plus anneal available (RoHS compliant)
Applications
• PDAs, Cell Phones and Smart Phones
• Portable Instruments, MP3 Players
• Handheld Devices including Medical Handhelds
1
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. 2005. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.

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