Microchip MIC5374 Bruksanvisning
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MIC5374
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MIC5374/84
Triple 200mA µCap LDO and 1mA
RTC LDO in 2.5mm x 2.5mm Thin MLF®
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
General Description
The MIC5374/84 is a four output device with three 200mA
LDOs and a real time clock (RTC) 1mA LDO which is ideal
for application processor support in mobile platforms. The
MIC5374 provides independent control active high enables
for each of the 200mA LDOs with an additional always-on
RTC LDO. The MIC5384 provides active low enables.
Both the MIC5374 and MIC5384 are available in the tiny
2.5mm x 2.5mm Thin MLF® package.
The MIC5374/84 is designed for high input ripple rejection
(high PSRR) and provides low output noise making it ideal
for powering sensitive RF circuitry such as GPS, WiFi, and
Bluetooth applications. The MIC5374/84 also incorporates
a power-on-reset (POR) supervisor with adjustable delay
time set by an external capacitor, and an independent
input pin to monitor any voltage level. Once high, the POR
output can be asserted low again by enabling the manual
reset (MR) pin. When the MR pin is restored low, the POR
output will re-time the delay set by the external delay
capacitor.
The MIC5374/84 operates with very small ceramic output
capacitors to reduce board space and component cost. It
is available in various fixed output voltages. The
MIC5374/84 has a junction temperature range from −40°C
to 125°C.
Datasheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
• 1.7V to 5.5V input supply voltage range
• Output current - 200mA LDO1/2/3, 1mA LDO4
• LDO4 – Ultra low 8µA IBIAS for RTC support
• High output accuracy (±2%)
• Independent enable pins
• POR with user-defined voltage monitoring
− POR voltage input
− Adjustable delay time
− Manual reset pin
• Low dropout voltage – 170mV at 150mA
• High PSRR − 55dB at 1kHz on each LDO
• Stable with tiny ceramic output capacitors
• 2.5mm x 2.5mm Thin MLF 16-pin package
• Thermal-shutdown and current-limit protection
Applications
• Mobile phones
• GPS receivers
• Application co-processors
• PDAs and handheld devices
Typical Application
Typical MIC5374-xxxYMT Circuit
(Active High Enable)
Typical MIC5384-xxxYMT Circuit
(Active Low Enable)
September 2012 M9999-091712
Produktspecifikationer
| Varumärke: | Microchip |
| Kategori: | Inte kategoriserad |
| Modell: | MIC5374 |
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