Microchip MIC5321 Handleiding

Microchip Niet gecategoriseerd MIC5321

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2022 Microchip Technology Inc. and its subsidiaries DS20006678A-page 1
MIC5321
Features
• 2.3V to 5.5V Input Voltage Range
• Ultra-Low Dropout Voltage 35 mV @ 150 mA
• Tiny 6-Pin 1.6 mm x 1.6 mm Thin UDFN Leadless
Package
• Low Cost 6-Lead TSOT-23 Package
• Bypass Pin for Improved Noise Performance
• High PSRR: >75 dB on Each LDO
• Ultra-Low Noise Output: >30 µVRMS
• Dual 150 mA Outputs
• µCap Stable with 1 µF Ceramic Capacitor
• Low Quiescent Current: 150 µA
• Fast Turn-On Time: 45 µs
• Thermal Shutdown Protection
• Current Limit Protection
Applications
• Mobile Phones
• PDAs
• GPS Receivers
• Portable Electronics
• Portable Media Players
• Digital Still and Video Cameras
General Description
The MIC5321 is a tiny, dual ultra-low dropout linear
regulator ideally suited for applications that require high
PSRR because it provides a bypass pin for those noise
sensitive portable electronics. The MIC5321 integrates
two high-performance 150 mA ULDOs into a very
compact 1.6 mm x 1.6 mm leadless UDFN package
that provides exceptional thermal package
characteristics.
The MIC5321 is a µCap design that enables operation
with very small ceramic output capacitors for stability,
thereby reducing required board space and component
cost. The combination of extremely low dropout
voltage, very high power supply rejection, very low
output noise, and exceptional thermal package
characteristics makes it ideal for powering RF
application, cellular phone camera modules, imaging
sensors for digital still cameras, PDAs, MP3 players
and WebCam applications.
The MIC5321 is available in fixed-output voltages in the
tiny 6-pin 1.6 mm x 1.6 mm leadless UDFN package,
which is only 2.56 mm2 in area, less than 30% the area
of the SOT-23 and TSOP 3x3 packages. It’s also
available in the thin SOT-23 6-lead package and the
standard size 6-pin 1.6 mm x 1.6 mm leadless WDFN
package. Additional voltage options are available. For
more information, contact Microchip.
Package Types
MIC5321
6-Pin 1.6 mm x 1.6 mm UDFN (MT)/WDFN (ML)
(Top View)
MIC5321
6-Lead SOT-23 (D6)
(Top View)
1VIN
GND
BYP
6 VOUT1
VOUT2
EN
5
4
2
3
VIN GND
VOUT1 EN
BYP
31
6
2
4 5
VOUT2
High-Performance, Dual 150 mA µCap
Ultra-Low Dropout Regulator
MIC5321
DS20006678A-page 2 2022 Microchip Technology Inc. and its subsidiaries
Typical Application Circuit
Functional Block Diagram
RF Power Supply Circuit
VIN
EN
VOUT 1
VOUT 2
GND
MIC5321-x.xYML
1μF
0.01μF
BYP 1μF
Rx/Synth
Tx
RF
Transceiver
1μF
EN
Enable
Reference
LDO1
LDO2
BYP
VIN VOUT 1
VOUT 2
GND
2022 Microchip Technology Inc. and its subsidiaries DS20006678A-page 3
MIC5321
1.0 ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings †
Supply Input Voltage (VIN) ................................................................................................................................ 0V to +6V
Enable Input Voltage (V
EN) ............................................................................................................................... 0V to +6V
Power Dissipation (PD) ............................................................................................................... Internally LimitedNote 1
ESD Rating ( ) ..................................................................................................................................................2 kVNote 2
Operating Ratings ‡
Supply Input Voltage (VIN) ........................................................................................................................ +2.3V to +5.5V
Enable Input Voltage (V
EN) .................................................................................................................................0V to V
IN
† Notice: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of the device at those or any other conditions above those indicated
in the operational sections of this specification is not intended. Exposure to maximum rating conditions for extended
periods may affect device reliability.
‡ Notice: The device is not guaranteed to function outside its operating ratings.
Note 1: The maximum allowable power dissipation at any TA (ambient temperature) is PD(MAX) = (TJ(MAX) – TA)/θJA.
Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the reg-
ulator will go into thermal shutdown.
2: Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5 kΩ in series with
100 pF.
ELECTRICAL CHARACTERISTICS
Electrical Characteristics: VIN = EN = VOUT + 1.0V; higher of the two regulator outputs, I
OUTLDO1 = IOUTLDO2 =
100 µA; COUT1 = COUT2 = 1 µF; CBYP = 0.01 µF; TJ = 25°C, bold values valid for –40°C ≤ TJ ≤ +125°C, unless noted.
( )Note 1
Parameter Symbol Min. Typ. Max. Units Conditions
Output Voltage Accuracy VOUT
–2.0 — 2.0
%
Variation from nominal VOUT
–3.0 3.0—Variation from nominal VOUT;
–40°C to +125°C
Line Regulation
ΔVOUT/
(V OUT x
ΔVIN)
— 0.02 0.3
%/V VIN = VOUT + 1V to 5.5V;
IOUT = 100 µA
— — 0.6
Load Regulation ΔVOUT/
VOUT
— 0.5 % I2.0 OUT = 100 µA to 150 mA
Dropout Voltage ( ) VNote 2 DO
— 0.1 —
mV
IOUT = 100 µA
— 12 I50 OUT = 50 mA
— 25 I75 OUT = 100 mA
— 35 I100 OUT = 150 mA
Ground Current IGND — 150 µA190 EN = High; IOUT1 = 150 mA,
IOUT2 = 150 mA
Ground Current in Shutdown ISHDN — 0.01 µA EN1 ≤ 0.2V2
Ripple Rejection PSRR
— 75 —
dB
f = 1 kHz; COUT = 1.0 µF;
CBYP = 0.1 µF
— 45 — f = 20 kHz; COUT = 1.0 µF;
CBYP = 0.1 µF
Current Limit ILIM 300 950550 mA VOUT = 0V
Output Voltage Noise eN— 30 — µVRMS
COUT = 1.0 µF; CBYP = 0.01 µF;
10 Hz to 100 kHz

Product specificaties

Merk: Microchip
Categorie: Niet gecategoriseerd
Model: MIC5321

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