 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
RS5RJ3027B-T2 Datasheet(PDF) 9 Page - RICOH electronics devices division |
|
||||||||||||||||||||||||||||||
RS5RJ3027B-T2 Datasheet(HTML) 9 Page - RICOH electronics devices division |
|
|
9 / 30 page  8 RS5RJ – + – + LX Tr LX VFM OSC Vref1 Vref2 Pch Tr VSS 100µF 100µH VDD VOUT VOUT VIN 22µF 1µF 5 1 86 FIG. A Diagram of RS5RJ including external circuits OPERATION 1. VDD Output Voltage VDD output voltage is shown in Fig. B. (1) In the case of VIN–Vf ≥VDD0: In Area B, LxTr is maintained in an OFF state, so that VIN–Vf (V) is output as it is from VDD pin without step-up operation. (2) In the case of VIN–Vf <VDD0: In Area A, this IC functions as Step-up DC/DC converter. The step-up operation will now be explained with reference to FIG. A. The step-up operation is an operation for regulating the VDD output voltage by comparing Vref1 and the VDD output voltage by error amplifier circuits and subjecting LxTr to on-time con- trol by VFM circuits (i.e., by controlling the step-up operation). 2. VOUT Output Voltage A constant voltage is output from VOUT pin, with above-mentioned the VDD output voltage being subjected to a step-down operation by a linear regulator. This step-down operation will now be explained with reference to FIG. A. The step-down operation is an operation for regulating the VDD output voltage by Pch Tr by comparing Vref2 and the VDD output voltage. VIN : Input Voltage VDD0: VDD Set Voltage VOUT0: VOUT Set Voltage Vf : ON Voltage of Diode VDD VOUT VDD0+Vf 1.2V 10V Input Voltage (V) Area A VDD0 Area B VOUT0 FIG. B Output Voltage vs. Input Voltage characteristic |
Similar Part No. - RS5RJ3027B-T2 |
|
Similar Description - RS5RJ3027B-T2 |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
