Microchip MIC5318 Handleiding

Microchip Niet gecategoriseerd MIC5318

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2021 Microchip Technology Inc. DS20006578A-page 1
MIC5318
Features
• Ultra-Low Dropout Voltage 110 mV @ 300 mA
• Input Voltage Range: 2.3V to 6.0V
• 300 mA Guaranteed Output Current
• Stable with Ceramic Output Capacitors
• Ultra-Low Output Noise: 30 µVRMS
• Low Quiescent Current: 85 µA Total
• High PSRR > 70 dB @ 1 kHz
• Less than 35 µs Turn-On Time
• High Output Accuracy
- ±2% Initial Accuracy
- ±3% over Temperature
• Thermal Shutdown and Current-Limit Protection
• Tiny 6-lead 1.6 mm x 1.6 mm UDFN package
• Thin SOT23-5 Package
Applications
• Mobile Phones
• PDAs
• GPS Receivers
• Portable Electronics
• Digital Still and Video Cameras
General Description
The MIC5318 is a high performance, single output
ultra-low dropout regulator, offering low total output
noise in an ultra-small UDFN package. The MIC5318 is
capable of sourcing 300 mA output current and offers
high PSRR and low output noise, making it an ideal
solution for RF applications.
Ideal for battery operated applications, the MIC5318
offers 2% initial accuracy, extremely low dropout
voltage (110 mV @ 300 mA), and low ground current
(typically 85 µA total). The MIC5318 can also be put
into a “zero” off-mode current state, drawing no current
when disabled.
The MIC5318 is available in the 1.6 mm x 1.6 mm
UDFN package, occupying only 2.56 mm
2 of PCB
area, fully a 36% reduction in board area when
compared to SC-70 and 2 mm x 2 mm UDFN
packages.
The MIC5318 has an operating junction temperature
range of –40°C to +125°C and is available in fixed and
adjustable output voltages in lead-free (RoHS
compliant) UDFN and Thin SOT23-5 packages.
Package Types
MIC5318 (F )IXED
6-Lead UDFN (MT)
(Top View)
MIC5318 (ADJ.)
6-Lead UDFN (MT)
(Top View)
1EN
GND
IN
6 BYP
NC
OUT
5
4
2
3
1EN
GND
IN
6 BYP
ADJ
OUT
5
4
2
3
MIC5318 (F )IXED
5-Lead TSOT23 (D5)
(Top View)
MIC5318 (ADJ.)
5-Lead TSOT23 (D5)
(Top View)
EN GND
BYP OUT
IN
3 1
5
2
4
EN GND
ADJ OUT
IN
3 1
5
2
4
High Performance 300 mA µCap Ultra-Low Dropout Regulator
MIC5318
DS20006578A-page 2 2021 Microchip Technology Inc.
Typical Application Circuit
Functional Block Diagrams
RF
Transceiver
1.6mm
1.6mm
VOUTVIN
EN
GND
VIN
1μF1μF
MIC5318-x.xYMT
BYP
0.01μF
VIN
EN
BYP
VOUT
GND
Current
Limit
Quick-
Start
VREF
Thermal
Shutdown
Error
Amp
Fixed Version
VIN
EN
BYP
VOUT
GND
Current
Limit
Quick-
Start
VREF
Thermal
Shutdown
Error
Amp
ADJ
Adjustable Version
2021 Microchip Technology Inc. DS20006578A-page 3
MIC5318
1.0 ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings †
Supply Voltage (VIN) ...................................................................................................................................... 0V to +6.5V
Enable Input Voltage (VEN) ............................................................................................................................ 0V to +6.5V
Power Dissipation ( ) .................................................................................................................... Internally LimitedNote 1
ESD Rating .............................................................................................................................................................Note 2
Operating Ratings ‡
Supply Voltage (VIN) ................................................................................................................................. +2.3V to +6.0V
Enable Input Voltage (VEN) .................................................................................................................................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 rating.
Note 1: The maximum allowable power dissipation of 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 are recommended. Human body model.
ELECTRICAL CHARACTERISTICS
Electrical Characteristics: VIN = VOUT + 1.0V; COUT = 1.0 µF; IOUT = 100 µA; TJ = +25°C, bold values valid for
–40°C to +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 %/V0.6 VIN
= VOUT + 1V to 6.0V;
IOUT
= 100 µA
Load Regulation ( )Note 2 ΔVOUT/
VOUT
— 0.2 % I2.0 OUT
= 100 µA to 300 mA
Dropout Voltage ( ) VNote 3 DO
— 17 —
mV
IOUT
= 50 mA; VOUT ≥ 2.8V
— 50 I100 OUT
= 150 mA; VOUT ≥ 2.8V
— 110 I200 OUT
= 300 mA; VOUT ≥ 2.8V
Ground Pin Current ( ) INote 4 GND — 85 µA I150 OUT
= 0 mA to 300 mA
Ground Pin Current in
Shutdown ISHDN — 0.01 1 µA VEN
≤ 0.2V
Note 1: Specification for packaged product only.
2: Regulation is measured at constant junction temperature using low duty cycle pulse testing, changes in
output voltage due to heating effects are covered by the thermal regulation specification.
3: Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below
its nominal value measured at 1V differential. For outputs below 2.3V, dropout voltage is the input-to-out-
put differential with the minimum input voltage 2.3V.
4: Ground pin current is the regulation quiescent current. The total current drawn from the supply is the sum
of the load current plus the ground pin current.

Product specificaties

Merk: Microchip
Categorie: Niet gecategoriseerd
Model: MIC5318

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