Electronic standard parts : Power Supplies

Christoph Tack wrote 03/07/2019 at 19:22 • 1 like • 2 min read • Like

DC DC Converters Board Mount

Device	Specifications	Sources
Buck converter module	Input voltage : 4.5V - 28V Output voltage : 0.8 - 20V Output current : 3A Efficiency : 92% Switching frequency : 1MHz - 1.5MHz Operating temperature : -20°C - +85°C Size : 22 x 17 x 4 mm	WAVGAT XM1584 Driver IC : MP1584
Boost converter module	Input voltage : 2-24V Output voltage : 2-28V Output current & Efficiency Switching frequency : 1.2MHz Remark: high components, easily broken Size : 23 x 17 mm	HWA YEH SX1308 Driver IC : SX1308, pin compatible to MPS MP3221
Boost converter module	Input voltage : 2-24V Output voltage : 2-28V VIN=4.2V, VOUT=5V, Imax=0.5A (η=82%) VIN=3.7V, VOUT=5V, Imax=0.4A (η=82%) VIN=3.0V,VOUT=5V, Imax=0.3A (η=79%) Size: 30 x 17 x 14 mm	AliEpress 32851687094 Driver IC : MT3608
Boost converter IC	Consider using a boost LED driver. They are cheap, but might not have true output disconnect. Input voltage : 0.8 to 5.5V Output voltage : 2 to 5.5V Output current : 350mA EN = active high	* True output disconnect (1µA leakage): MCP1640 & MCP1640B not MCP1640C or D * MP3120 compatible to AAT1217
Buck boost converter module	Input voltage : 1.5-6.5V Output voltage : 3V3 Output current : * 1.5VIN -> 150mA * 3.7VIN -> TBD * 6.5VIN -> >3.0A Evaluation	AliExpress 32757272432 Driver IC : MicrOne ME2149
Buck boost converter module	Input voltage : 3-15V Output voltage : 3V3 Output current : ?	AliExpress 32892547111
3V3 LDO	* RT9080 (600mA, 2µA Iq) * Richtek RT9073N-33GB (3µA Iq, 0.6V dropout, Imax=250mA) * S-1313C33-M5T1U3 (200mA, 1.35µA Iq) * NCP718ASN330T1G (300mA, 4µA Iq) * HT7833 (LCSC C164106, SOT23-5)	Alternative : Holtek HT7333 (250mA, SOT89-3, Iq=5µA, 0.3V dropout)

Load switches

If the MCP1640 consumes too much current to your mind (1000nA), then you can add a load switch. The TCK106AF,LF, TCK108AF,LF and TPS22917DBVR are excellent low power switches.

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Electronic standard parts : Wireless

05/11/2019 at 16:21 • 0 comments

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