MIC5283YME T5 - Micrel - Datasheet.Live

MIC5283

120VIN, 150mA, Ultra-Low IQ, High-PSRR

Linear Regulator

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

March 2012 M9999-030812-A

General Description

The MIC5283 high-performance linear regulator offers a

very-wide input operating voltage range, up to 120V DC,

and supplies an output current of up to 150mA.

Ideal for high input voltage applications such as industrial

and telecom, the MIC5283 offers ±3% initial accuracy,

extremely high-power supply rejection ratio (75dB at

10kHz) and an ultra-low quiescent current of 8µA. The

MIC5283 is optimized for high-voltage line transients,

making it ideal for harsh environment applications.

The MIC5283 is offered in both fixed output voltage (3.3V

or 5.0V) and adjustable output voltage (1.22V to 5.5V)

options.

The MIC5283 operates over a 40°C to +125°C

temperature range and is available in lead-free, RoHS-

compliant, ePad SOIC-8 and 3mm x 3mm MLF®

packages.

Data sheet and support documentation are found on the

Micrel website: www.micrel.com.

Features

 Wide input voltage range: 6V to 120V DC

 Ultra-low quiescent current: 8µA

 150mA guaranteed output current

 Adjustable output from 1.22V to 5.5V

 Stable with ceramic capacitors

 Ultra-high PSRR (75dB at 10kHz)

 Ultra-high line rejection (load dump)

 High output accuracy:

– ±3% initial accuracy

 Thermal-shutdown and current-limit protection

 Thermally-efficient, 8-pin ePad SOIC package

 Very low-profile 3mm x 3mm MLF® package

Applications

 Industrial applications

 Remote keyless entry power supply

 Telecom applications

 Off-line power supplies

___________________________________________________________________________________________________________

Typical Applications

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Ordering Information

Part Number Output Voltage Top Mark Temperature Range Package Lead Finish

MIC5283YME Adjustable 5283YME

–40C to 125C 8-Pin ePad SOIC Pb-Free

MIC5283-3.3YME 3.3V 5283-33YME

–40C to 125C 8-Pin ePad SOIC Pb-Free

MIC5283-5.0YME 5.0V 5283-50YME

–40C to 125C 8-Pin ePad SOIC Pb-Free

MIC5283YML Adjustable

A83 –40C to 125C 3mmx3mm MLF®-8L Pb-Free

MIC5283-3.3YML 3.3V 8S3

–40C to 125C 3mmx3mm MLF®-8L Pb-Free

MIC5283-5.0YML 5.0V 583

–40C to 125C 3mmx3mm MLF®-8L Pb-Free

Pin Configur ation

8-Pin ePAD SOIC

MIC5283-x.xYME

Fixed Voltage Output

(TOP VIEW)

3mm x 3mm MLF®-8L

MIC5283-x.xYML

Fixed Voltage Output

(TOP VIEW)

8-Pin ePAD SOIC

MIC5283YME

Adjustable Voltage Output

(TOP VIEW)

3mm x 3mm MLF®-8L

MIC5283YML

Adjustable Voltage Output

(TOP VIEW)

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Pin Description

Pin Number

Adjustable

Output Fixed Output Name Function

1 1 VIN Supply Voltage Input. Connect 1µF capacitor from VIN to GND.

2, 3, 7 2, 3, 7 NC Not internally connected. Connect NC to GND or leave unconnected.

4 4 CPSRR Bypass Capacitor Connection. Connect 0.1µF capacitor from CPSRR to GND.

5 5 GND Ground.

6 — FB Feedback Connection. For external resistor divider to set VOUT.

— 6 SNS Sense input. Connect SNS to VOUT.

8 8 VOUT Regulator Output. Connect 10µF capacitor from VOUT to GND.

EP EP EP Exposed Pad (ePad) for Thermal Dissipation. Connect EP to GND.

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Absolute Maximum Ratings(1)

VIN to GND................................................... –0.3V to +125V

VCPSRR to GND..................................................–0.3 to +14V

VFB, VSNS, VOUT to GND ................................... –0.3V to +6V

Lead Temperature (soldering, 10s).......................... +260°C

Junction Temperature .........................–40°C  TJ  +125°C

Storage Temperature .........................–65°C  TA  +150°C

ESD Ratings(4)

HBM......................................................................... 2kV

MM.........................................................................200V

Operating Ratings(2)

VIN ................................................................. +6V to +120V

VOUT Adjust Range ..................................... +1.22V to +5.5V

Junction Temperature .........................–40°C  TJ  +125°C

Power Dissipation (PD)........................... Internally Limited(3)

Junction Thermal Resistance (JA)

8-pin ePad SOIC ...............................................41°C/W

3mm x 3mm MLF®-8..........................................60°C/W

Electrical Characteristics(5)

VIN = 12V, CIN = 1.0µF, CPSRR = 0.1µF, COUT = 10µF, VOUT = 5.0V or 3.3V, IOUT = 100µA, TA = 25°C, bold values indicate –40°C  TJ 

+125°C, unless noted.

Parameter Condition Min. Typ. Max. Units

Power Supply Input

Input Voltage Range 6 120 V

Quiescent Supply Current IOUT = 0 8 14 µA

Output Voltage

-3 +3 %

Output Voltage Accuracy Variation from nominal VOUT

100µA ≤ IOUT ≤ 150mA -5 +5 %

Line Regulation(6) 10V ≤ VIN ≤ 120V -0.5 0.04 +0.5 %/V

Feedback Input (Adjustable)

1.183 1.220 1.256

FB Voltage 100µA ≤ IOUT ≤ 150mA 1.159 1.220 1.281 V

FB Current VFB = 1.22V 3.2 nA

Current Limit

Current Limit VOUT = 0V 180 300 500 mA

Ripple Rejection

100Hz ≤ f ≤ 1kHz 70 dB

1kHz < f ≤ 30kHz 75 dB

Power Supply Rejection Ratio IOUT = 50mA

30kHz < f ≤ 100kHz 65 dB

Power Dropout Voltage

Dropout Voltage IOUT = 150mA 1.8 2.8 V

Thermal Protection

Thermal-Shutdown Temperature TJ rising 155 C

Thermal-Shutdown Hysteresis 15 C

Notes:

1. Exceeding an absolute maximum rating may damage the device.

2. The device is not guaranteed to function outside its operating rating.

3. The maximum allowable power dissipation at any TA (ambient temperature) is PD(max) = (TJ(max) – TA) / θJA. Exceeding the maximum allowable power

dissipation results in excessive die temperature, and causes the regulator to enter thermal shutdown.

4. Devices are ESD sensitive; use proper handling precautions.

5. Specifications are for packaged products only.

6. Line regulation is a percentage of VOUT.

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Typical Characteristics

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Typical Characteristics (Continued)

Case Temperature*: The temperature measurement was taken at the hottest point on the MIC5283 case mounted on a 2.25 square inch PCB at an

ambient temperature of 25°C; see “Thermal Measurement” section. Actual results will depend upon the size of the PCB, ambient temperature and

proximity to other heat emitting components.

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Functional Characteristics

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Functional Characteristics (Continued)

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Detailed Description

The MIC5283 voltage regulator accepts a 6V to 120V input

voltage and has an ultra-low 8µA typical quiescent current

while offering an excellent line transient response and

PSRR. These features make it ideal for harsh, noisy

environments. All options offer 150mA of output current.

The MIC5283YML and MIC5283YME offer an adjustable

output voltage from 1.22V to 5.5V. The MIC5283-3.3YML

and MIC5283-3.3YME offer fixed 3.3V outputs and the

MIC5283-5.0YML and MIC5283-5.0YME offer fixed 5.0V

outputs. The YME packaged devices feature a heat slug to

more effectively remove heat from the die.

Applications Information

Thermal Protection

The MIC5283 has internal thermal shutdown to protect it

from excessive heating of the die. When the junction

temperature exceeds approximately +155°C, the output is

disabled and the device begins to cool down. The device

turns back on when the junction temperature cools by

15°C. This will result in a cycled output during continuous

thermal-overload conditions.

Current Limit

The MIC5283 features output current-limit protection. The

output sustains a continuous short circuit to GND without

damage to the device, but thermal shutdown often results.

The typical value for the current limit of the MIC5283 is

300mA.

Input Capacitor

Connect a 1.0µF capacitor from VIN to GND. Micrel

recommends the C5750X7R2E105M, 1.0µF, 250V

capacitor made by TDK. When using a different capacitor,

assure that the voltage rating of the capacitor has

adequate headroom to withstand any potential transient.

CPSRR Capacitor

To maintain high power supply rejection, connect a 0.1µF

capacitor from CPSRR to GND. The voltage rating of the

capacitor must be at least 14V.

Output Capacitor

Connect a 10µF capacitor from VOUT to GND. Assure that

the voltage rating of the capacitor exceeds the designed

output voltage of the MIC5283.

Output Voltage Setting

For the MIC5283YML and MIC5283YME, VOUT is

programmable from 1.22V to 5.5V using an external

resistive divider. VOUT is set using the following equation:











 1

VV REFOUT

where VREF = 1.22V, and R1 and R2 form the feedback

voltage divider from VOUT to ground.

Thermal Measurements

It is always prudent to measure an IC’s case temperature

to make sure that it is within operating limits, but it is easy

to get erroneous results. The standard thermocouple that

comes with many voltage meters uses a large wire gauge

that behaves like a heat-sink, resulting in artificially low

case temperature measurements. Use a thermocouple of

36-gauge wire or smaller, such as the Omega (5SC-TT-K-

36-36), to minimize the heat-sinking effect. Also, apply a

thermal compound to maximize heat transfer between the

IC and the thermocouple.

An infrared thermometer is a recommended alternative.

The IR thermometer from Optris has a 1mm spot size,

ideal for monitoring small surface mount packages. Also,

the optional stand makes it easy to keep the beam on the

IC for long periods of time.

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Functional Diagram

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MIC5283 Evaluation Board Schematic

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Bill of Materials

Item Part Number Manufacturer Description Qty.

C1 C5750X7R2E105M TDK(1) 1.0µF, 250V, 20%, X7R capacitor (2220) 1

C2 08053C104KAT2A AVX(2) 0.1µF 25V 20%, X7R capacitor (0805) 1

C3 0805ZD106KAT2A AVX(2) 10µF, 10V, 20%, X5R, capacitor (0805) 1

R1 CRCW06030000F Vishay/Dale(3) 0, 1% resistor, 0603 1

R2 CRCW06032942F Vishay/Dale(3) 29.4k, 1% resistor, 0603 1

R3 CRCW06039531F Vishay(3) 9.53kΩ Film Resistor, Size 0603, 1% 1

R4 CRCW06031742F Vishay(3) 17.4kΩ Film Resistor, Size 0603, 1% 1

R5 CRCW06032802F Vishay(3) 28.0kΩ Film Resistor, Size 0603, 1% 1

R6 CRCW06036192F Vishay(3) 61.9kΩ Film Resistor, Size 0603, 1% 1

U1 MIC5283YML Micrel(4) 120VIN, 150mA, Ultra-Low IQ, High-PSRR Linear Regulator 1

Notes:

1. TDK: www.tdk.com.

2. AVX.: www.avx.com.

3. Vishay Tel: www.vishay.com.

4. Micrel, Inc.: www.micrel.com.

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PCB Evaluation Board Layout

Top Layer

Bottom Layer

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PCB Evaluation Board Layout (Continued)

EV Board Dimensions

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Package Information

8-Pin Exposed Pad SOIC (ME)

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Package Information (Continued)

8-Pin 3mmx3mm MLF® (ML)

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Recommended Land Pattern

8-Pin Exposed Pad SOIC

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Recommended Land Pattern (Continued)

8-Pin 3mm x 3mm MLF®

Red circle indicates Thermal Via. Size should be .300mm  .350mm in diameter, 1.00mm pitch, and it should be

connected to GND plane for maximum thermal performance.

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MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA

TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com

Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This

information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry,

specifications and descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual

property rights is granted by this document. Except as provided in Micrel’s terms and conditions of sale for such products, Micrel assumes no liability

whatsoever, and Micrel disclaims any express or implied warranty relating to the sale and/or use of Micrel products including liability or warranties

relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right.

Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product

can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant

into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A

Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully

indemnify Micrel for any damages resulting from such use or sale.

Mouser Electronics

Authorized Distributor

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MIC5283-3.3YME TR MIC5283-5.0YME TR MIC5283YME TR MIC5283-3.3YML TR MIC5283-5.0YML TR

MIC5283YML TR MIC5283-5.0YME MIC5283-5.0YME T5 MIC5283-3.3YME MIC5283YME T5 MIC5283-3.3YME T5

MIC5283YME MIC5283YML-TR MIC5283-5.0YML-TR MIC5283-5.0YME-T5 MIC5283YME-TR MIC5283-3.3YML-

TR MIC5283-3.3YME-T5 MIC5283-5.0YME-TR MIC5283-3.3YME-TR MIC5283YME-T5