2 layers75.7 × 53.7 mm
MIC37100-3.3WS
Microchip TechnologyExtended
-40℃~+125℃@(Tj) 1 11mA 1A 3.3V 500mV@(1A) 6V Fixed Over Current Protection、Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS
- Part id
- microchip/MIC37100-3.3WS
- Category
- Voltage Regulators, Linear, Low Drop Out (LDO) Regulators
- Package
- SOT-223
- Pins
- 4
- In stock
- 34 at JLCPCB (C144349)
- Used on
- 28 open-source boards
Overview
The MIC37100-3.3WS is a voltage Regulators, Linear, Low Drop Out (LDO) Regulator made by Microchip Technology in a SOT-223 package with 4 pins. -40℃~+125℃@(Tj) 1 11mA 1A 3.3V 500mV@(1A) 6V Fixed Over Current Protection、Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:MIC37100-1.5WS, from EasyEDA) and its footprint (Package_TO_SOT_SMD:SOT-223, from KiCad's library), ready for a KiCad board. 34 are in stock at JLCPCB (part C144349). 28 open-source boards in 3 repositories on GitHub use it.
Symbol
Footprint
From the datasheet
13- Supply, least
- 2.25 V · VIN, recommended operating min · p. 4
- Supply, most
- 6 V · VIN, recommended operating max · p. 4
- Supply, absolute maximum
- 6.5 V · VIN, absolute max · p. 4
- Junction, hottest
- 125 °C · Junction temperature max · p. 4
- Output
- 3.3 V · Fixed output voltage · p. 2
- Gives
- 1 A · Guaranteed output current min · p. 1
- Takes working
- 11 mA · Ground current typical, IOUT = 1A, VIN = VOUT + 1V · p. 4
- Current limit
- 1.6 A · Current limit typical, VOUT = 0V, VIN = VOUT + 1V · p. 4
- Dropout
- 125 mV · Dropout typical at 100mA, ∆VOUT = –1% · p. 4
- Dropout
- 210 mV · Dropout typical at 500mA, ∆VOUT = –1% · p. 4
- Dropout
- 250 mV · Dropout typical at 750mA, ∆VOUT = –1% · p. 4
- Dropout
- 280 mV · Dropout typical at 1A, ∆VOUT = –1% · p. 4
- Junction to case (SOT-223)
- 15 K/W · Junction-to-case thermal resistance · p. 4
What it is and has
5- Output current
- 1A minimum guaranteed · p. 1
- Initial accuracy
- 1% · p. 1
- Protection
- Current limiting and thermal shutdown · p. 1
- Protection
- Reversed-leakage protection · p. 1
- Package
- Low-profile SOT-223 · p. 1
Around it
2- cap 10µF or greater
- between OUT and GND; Ceramic output capacitor for stability; X7R/X5R dielectric recommended, ESR less than 1Ω. · p. 11
- cap 1µF or greater
- between IN and GND; Recommended when more than 4 inches from bulk AC supply capacitance or when supplied by a battery; ceramic chip capacitors may be used. · p. 11
Specifications
19| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Supply Voltage VIN | min 0 · max 6.5 V | 4 | |
| Lead Temperature | soldering, 5 sec. | max 260 °C | 4 |
| Storage Temperature Ts | min -65 · max 150 °C | 4 | |
| Junction Temperature TJ | min -40 · max 125 °C | 4 | |
| Package Thermal Resistance θJC | SOT-223 | typ 15 °C/W | 4 |
| Output Voltage VOUT | 10mA; VIN = VOUT + 1V; TJ = 25°C | min -1 · max 1 % | 4 |
| Output Voltage VOUT | 10mA ≤ IOUT ≤ 1A, VOUT + 1V ≤ VIN ≤ 6V | min -2 · max 2 % | 4 |
| Line Regulation | IOUT = 10mA, VOUT + 1V ≤ VIN ≤ 6V | typ 0.06 · max 0.5 % | 4 |
| Load Regulation | VIN = VOUT + 1V, 10mA ≤ IOUT ≤ 1A | typ 0.2 · max 1 % | 4 |
| Output Voltage Temp. Coefficient ∆VOUT/∆T | typ 40 pm/°C | 4 | |
| Dropout Voltage VDO | IOUT = 100mA, ∆VOUT = –1% | typ 125 · max 200 mV | 4 |
| Dropout Voltage VDO | IOUT = 500mA, ∆VOUT = –1% | typ 210 · max 350 mV | 4 |
| Dropout Voltage VDO | IOUT = 750mA, ∆VOUT = –1% | typ 250 · max 400 mV | 4 |
| Dropout Voltage VDO | IOUT = 1A, ∆VOUT = –1% | typ 280 · max 500 mV | 4 |
| Ground Current IGND | IOUT = 100mA, VIN = VOUT + 1V | typ 650 uA | 4 |
| Ground Current IGND | IOUT = 500mA, VIN = VOUT + 1V | typ 3.5 mA | 4 |
| Ground Current IGND | IOUT = 750mA, VIN = VOUT + 1V | typ 6.7 mA | 4 |
| Ground Current IGND | IOUT = 1A, VIN = VOUT + 1V | typ 11 · max 25 mA | 4 |
| Current Limit IOUT(lim) | VOUT = 0V, VIN = VOUT + 1V | typ 1.6 · max 2.5 A | 4 |
Pins, by the datasheet
4- 1 IN
- Supply input. · p. 3
- 2 GND
- Ground. · p. 3
- 3 OUT
- Regulator output. · p. 3
- TAB GND
- Ground. · p. 3
Ordering codes, by the datasheet
2- MIC37100-3.3BS
- SOT-223 · 3.3V fixed output, standard version, –40° to +125°C. · p. 2
- MIC37100-3.3WS
- SOT-223 · 3.3V fixed output, Pb-Free/RoHS compliant with high-melting solder exemption, –40° to +125°C. · p. 2
- 4 layers182.9 × 134 mm
- 4 layers68 × 83.4 mm
- 4 layers130 × 81 mm
- 2 layers
- 2 layers32 × 44 mm
- 4 layers70 × 35 mm
- 4 layers101 × 75 mm
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Questions
Is there a KiCad symbol and footprint for the MIC37100-3.3WS?
Yes. The symbol is EasyEDA_Cloud:MIC37100-1.5WS and the footprint Package_TO_SOT_SMD:SOT-223, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the MIC37100-3.3WS?
SOT-223, with 4 pins. Its footprint is drawn on this page.
Where is the MIC37100-3.3WS datasheet?
Microchip Technology publishes it: the Datasheet link on this page opens it.
Where can I order the MIC37100-3.3WS?
JLCPCB lists it as part C144349, with 34 in stock; the sellers' links on this page open their listings.
What can replace the MIC37100-3.3WS?
Parts like it in the library: the NCP1117ST33 by onsemi, the AZ1117H-3.3TRE1 by Diodes Incorporated, the LD1117AG-33-AA3-A-R by UTC and the AZ1117CH-3.3TRG1 by Diodes Incorporated. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the MIC37100-3.3WS?
28 boards in 3 repositories on GitHub; the most starred are listed on this page, with their KiCad files.