Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

ISL9014AIRMGZ Datasheet(PDF) 10 Page - Intersil Corporation

Part # ISL9014AIRMGZ
Description  Dual LDO with Low Noise, Low IQ, and High PSRR
Download  11 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL9014AIRMGZ Datasheet(HTML) 10 Page - Intersil Corporation

Back Button ISL9014AIRMGZ Datasheet HTML 3Page - Intersil Corporation ISL9014AIRMGZ Datasheet HTML 4Page - Intersil Corporation ISL9014AIRMGZ Datasheet HTML 5Page - Intersil Corporation ISL9014AIRMGZ Datasheet HTML 6Page - Intersil Corporation ISL9014AIRMGZ Datasheet HTML 7Page - Intersil Corporation ISL9014AIRMGZ Datasheet HTML 8Page - Intersil Corporation ISL9014AIRMGZ Datasheet HTML 9Page - Intersil Corporation ISL9014AIRMGZ Datasheet HTML 10Page - Intersil Corporation ISL9014AIRMGZ Datasheet HTML 11Page - Intersil Corporation  
Zoom Inzoom in Zoom Outzoom out
 10 / 11 page
background image
10
FN6438.0
January 30, 2007
If EN2 is brought high, and EN1 goes high after VO2 starts
its output ramp, then the ISL9014A immediately starts to
ramp up the VO1 output.
If both EN1 and EN2 are brought high at the same time, the
VO1 output has priority, and is always powered up first.
During operation, whenever the VIN voltage drops below
about 1.8V, the ISL9014A immediately disables both LDO
outputs. When VIN rises back above 2.1V, the device
re-initiates its start-up sequence and LDO operation will
resume automatically.
Reference Generation
The reference generation circuitry includes a trimmed
bandgap, a trimmed voltage reference divider, a trimmed
current reference generator, and an RC noise filter. The filter
includes the external capacitor connected to the CBYP pin.
A 0.01µF capacitor connected CBYP implements a 100Hz
lowpass filter, and is recommended for most high
performance applications. For the lowest noise application, a
0.1µF or greater CBYP capacitor should be used. This filters
the reference noise to below the 10Hz to 1kHz frequency
band, which is crucial in many noise-sensitive applications.
The bandgap generates a zero temperature coefficient (TC)
voltage for the reference divider. The reference divider
provides the regulation reference and other voltage
references required for current generation and
over-temperature detection.
The current generator outputs references required for
adaptive biasing as well as references for LDO output
current limit and thermal shutdown determination.
LDO Regulation and Programmable Output Divider
The LDO Regulator is implemented with a high-gain
operational amplifier driving a PMOS pass transistor. The
design of the ISL9014A provides a regulator that has low
quiescent current, fast transient response, and overall
stability across all operating and load current conditions.
LDO stability is guaranteed for a 1µF to 10µF output
capacitor that has a tolerance better than 20% and ESR less
than 200mΩ. The design is performance-optimized for a 1µF
capacitor. Unless limited by the application, use of an output
capacitor value above 4.7µF is not recommended as LDO
performance improvement is minimal.
Soft-start circuitry integrated into each LDO limits the initial
ramp-up rate to about 30µs/V to minimize current surge. The
ISL9014A provides short-circuit protection by limiting the
output current to about 475mA.
Each LDO uses an independently trimmed 1V reference. An
internal resistor divider drops the LDO output voltage down
to 1V. This is compared to the 1V reference for regulation.
The resistor division ratio is programmed in the factory.
Overheat Detection
The bandgap outputs a proportional-to-temperature current
that is indicative of the temperature of the silicon. This
current is compared with references to determine if the
device is in danger of damage due to overheating. When the
die temperature reaches about +145°C, one or both of the
LDO’s momentarily shut down until the die cools sufficiently.
In the overheat condition, only the LDO sourcing more than
50mA will be shut off. This does not affect the operation of
the other LDO. If both LDOs source more than 50mA and an
overheat condition occurs, both LDO outputs are disabled.
Once the die temperature falls back below about +110°C,
the disabled LDO(s) are re-enabled and soft-start
automatically takes place.
ISL9014A


Similar Part No. - ISL9014AIRMGZ

ManufacturerPart #DatasheetDescription
logo
Intersil Corporation
ISL9014AIRMGZ INTERSIL-ISL9014AIRMGZ Datasheet
211Kb / 11P
   Dual LDO with Low Noise, Low IQ, and High PSRR
March 11, 2008
logo
Renesas Technology Corp
ISL9014AIRMGZ RENESAS-ISL9014AIRMGZ Datasheet
606Kb / 13P
   Dual LDO with Low Noise, Low IQ, and High PSRR
More results

Similar Description - ISL9014AIRMGZ

ManufacturerPart #DatasheetDescription
logo
Renesas Technology Corp
ISL9014A RENESAS-ISL9014A Datasheet
606Kb / 13P
   Dual LDO with Low Noise, Low IQ, and High PSRR
logo
Intersil Corporation
ISL9011AIRNNZ INTERSIL-ISL9011AIRNNZ Datasheet
320Kb / 12P
   Dual LDO with Low Noise, Low IQ and High PSRR
September 1, 2015
ISL9014AIRNNZ INTERSIL-ISL9014AIRNNZ Datasheet
211Kb / 11P
   Dual LDO with Low Noise, Low IQ, and High PSRR
March 11, 2008
ISL9012 INTERSIL-ISL9012 Datasheet
233Kb / 11P
   Dual LDO with Low Noise, Low IQ, and High PSRR
ISL9011A INTERSIL-ISL9011A Datasheet
208Kb / 11P
   Dual LDO with Low Noise, Low IQ, and High PSRR
logo
Renesas Technology Corp
ISL9011A RENESAS-ISL9011A Datasheet
584Kb / 12P
   Dual LDO with Low Noise, Low IQ and High PSRR
ISL9012 RENESAS-ISL9012 Datasheet
595Kb / 12P
   Dual LDO with Low Noise, Low IQ, and High PSRR
ISL9014 RENESAS-ISL9014 Datasheet
550Kb / 11P
   Dual LDO with Low Noise, Low IQ and High PSRR
logo
Intersil Corporation
ISL9014 INTERSIL-ISL9014_06 Datasheet
220Kb / 11P
   Dual LDO with Low Noise, Low IQ, and High PSRR
ISL9012 INTERSIL-ISL9012_06 Datasheet
235Kb / 11P
   Dual LDO with Low Noise, Low IQ, and High PSRR
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com