L5973D datasheet(12/17 Pages) STMICROELECTRONICS

Moteur de recherche de fiches techniques de composants électroniques

L5973D Fiches technique(PDF) 12 Page - STMicroelectronics

No de pièce	L5973D

Description	2.5 A switch step down switching regulator

PDF	17 Pages

Scroll/Zoom	100%

Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

Logo

12 / 17 page

Application ideas

L5973D

12/17

When an output voltage below the internal reference (1.235 V) is required, the circuit

reported in the figure 18 can been used. In this case the minimum voltage reachable is 0.6 V

and can be easily calculated with the following formula:

VOUT = VFB - [(VREF - VFB)x(R2 / R1)]

If the load is not present, a resistor connected between VOUT and GND is required in order

to avoid that the voltage across COUT increases.

The value of this resistor has to be calculated taking into account that the current flowing

through this resistance has to be higher than the current flowing through R2.

Figure 19.

Output voltage below the 1.235 V internal voltage reference

ALLDATASHEET vous a-t-il été utile ? [ DONATE ]
À propos de Alldatasheet \| Publicité \| Contactez-nous \| Politique de confidentialité \| Lien vers la fiche technique \| Echange de liens \| Fabricants All Rights Reserved©Alldatasheet.com
Mirror Sites English : Alldatasheet.com \| English : Alldatasheet.net \| Chinese : Alldatasheetcn.com \| German : Alldatasheetde.com \| Japanese : Alldatasheet.jp Russian : Alldatasheetru.com \| Korean : Alldatasheet.co.kr \| Spanish : Alldatasheet.es \| French : Alldatasheet.fr \| Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com \| Polish : Alldatasheet.pl \| Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in \| Mexican : Alldatasheet.com.mx \| British : Alldatasheet.co.uk \| New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com \| icmetro.com

ALLDATASHEET vous a-t-il été utile ? [ DONATE ]

Family Site : ic2ic.com | icmetro.com