Microchip MIC5373 Bruksanvisning
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MIC5373
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MIC5373/83
Triple 200mA µCap
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 MIC5373/83 is a triple output device with three 200mA
LDOs which is ideal for application processor support in
mobile platforms. The MIC5373 provides independent
control active high enables for each of the 200mA LDOs.
The MIC5383 provides active low enables. Both the
MIC5373 and MIC5383 are available in the tiny 2.5mm x
2.5mm Thin MLF® package.
The MIC5373/83 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 MIC5373/83 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 MIC5373/83 operates with very small ceramic output
capacitors to reduce board space and component cost. It
is available in various fixed output voltages. The
MIC5373/83 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
• 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 MLF16-pin package
• Thermal-shutdown and current-limit protection
Applications
• Mobile phones
• GPS receivers
• Application co-processors
• PDAs and handheld devices
Typical Application
Typical MIC5373-xxxYMT Circuit
(Active High Enable)
Typical MIC5383-xxxYMT Circuit
(Active Low Enable)
September 2012 M9999-091712
Micrel, Inc. MIC5373/83
September 2012 2 M9999-091712
Ordering Information
Part Number Mark
Code
Output
Voltage(1)
Junction
Temperature Range Package Lead Finish
MIC5373-MG4YMT MG4 2.8V/1.8V/1.2V –40° to +125°C 16-Pin 2.5mm x 2.5mm Thin MLF Pb-free
MIC5373-SJGYMT SJG 3.3V/2.5V/1.8V –40° to +125°C 16-Pin 2.5mm x 2.5mm Thin MLF Pb-free
MIC5383-MG4YMT Z1T 2.8V/1.8V/1.2V –40° to +125°C 16-Pin 2.5mm x 2.5mm Thin MLF Pb-free
MIC5383-SJGYMT Z5T 3.3V/2.5V/1.8V –40° to +125°C 16-Pin 2.5mm x 2.5mm Thin MLF Pb-free
Note:
1. Other voltage options available. Contact Micrel for details.
2. Lead finish is NiPdAu. Mold compound material is halogen free.
Pin Configuration
MIC5373
16-Pin 2.5mm x 2.5mm Thin MLF (MT)
(Top View)
MIC5383
16-Pin 2.5mm x 2.5mm Thin MLF (MT)
(Top View)
Micrel, Inc. MIC5373/83
September 2012 3 M9999-091712
Pin Description
Pin Number Pin Name Pin Function
1 OUT1 Regulator Output - LDO1.
2 INLDO1/2 Supply Input (LDO1/2).
3 OUT2 Regulator Output – LDO2.
4 BIAS Internal Bias Supply Voltage. Must be de-coupled to ground with a 0.1µF capacitor.
5 POR_IN Input to POR. Connect directly to output voltage or input voltage that is to be monitored for a 0.9V
reference, or connect a resistor divider network to this pin to program the POR monitoring voltage.
6 POR Power-on Reset Output. Open drain.
7 DLY POR Delay. Connect capacitor to ground to set POR delay time.
8 MR Manual Reset Input. Manually resets output of POR and delay generator. Do not leave floating.
9 NC Not internally connected.
10 NC Not internally connected.
11 INLDO3 Supply Input (LDO3).
12 OUT3 Regulator Output – LDO3.
13 GND Ground.
14 EN3 or /EN3 LDO3 Enable Input. EN (MIC5373): Active High Input. Logic High = On; Logic Low = Off;
/EN (MIC5383): Active Low Input. Logic High = Off; Logic Low = On; Do not leave floating.
15 EN2 or /EN2 LDO2 Enable Input. EN (MIC5373): Active High Input. Logic High = On; Logic Low = Off;
/EN (MIC5383): Active Low Input. Logic High = Off; Logic Low = On; Do not leave floating.
16 EN1 or /EN1 LDO1 Enable Input. EN (MIC5373): Active High Input. Logic High = On; Logic Low = Off;
/EN (MIC5383): Active Low Input. Logic High = Off; Logic Low = On; Do not leave floating.
HS Pad EPAD Exposed Heat Sink Pad. Connect to GND.
Produktspecifikationer
| Varumärke: | Microchip |
| Kategori: | Inte kategoriserad |
| Modell: | MIC5373 |
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