Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

LM21215AMHE-1 Datasheet(PDF) 26 Page - Texas Instruments

Part No. LM21215AMHE-1
Description  15-A Ultra High-Efficiency Synchronous Buck Converter
Download  38 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
Logo 

LM21215AMHE-1 Datasheet(HTML) 26 Page - Texas Instruments

Zoom Inzoom in Zoom Outzoom out
 26 / 38 page
background image
FB
PGOOD
VIN
LM21215A-1
VOUT
AGND
COMP
PVIN
SYNC
SW
EN
LF
RC1
CC1
CC2
CC3
RFB1
RFB2
RC2
PGND
AVIN
CF
1
11Å16
3
4
19
18
20
8,9,10
5,6,7
RF
SS/TRK
CSS
2
CIN1
CO1 CO2
REN1
REN2
1 MHz
17
VIN
RPGOOD
PGOOD
LM21215A
SNOSB87C – MARCH 2011 – REVISED JANUARY 2016
www.ti.com
8.2.2 Typical Application 2
The schematic diagram of a DC/DC regulator with 8-A output current is given by Figure 40.
Figure 40. Typical Application Schematic 2
8.2.2.1 Design Requirements
Output voltage setpoint is 0.9 V and the input voltage ranges from 4 V to 5.5 V. The switching frequency is set by
means of an external synchronization signal at 1 MHz. The output voltage soft-start time is 10 ms.
8.2.2.2 Detailed Design Procedure
Follow the detailed design procedure in Typical Application 1. The relevant power stage and small-signal
components are listed in Table 3.
Table 3. Bill of Materials (VIN = 4 V to 5.5 V, VOUT = 0.9 V, IOUT = 8 A, FSW = 1 MHz)
REF DES
DESCRIPTION
VENDOR
PART NUMBER
QUANTITY
CF
CAP, CERM, 1 µF, 10 V, ±10%, X7R, 0603
MuRata
GRM188R71A105KA61D
1
CIN1, CO1, CO2
CAP, CERM, 100 µF, 6.3 V, ±20%, X5R, 1206
MuRata
GRM31CR60J107ME39L
3
CC1
CAP, CERM, 1800 pF, 50 V, ±5%, C0G/NP0, 0603
MuRata
GRM1885C1H182JA01D
1
CC2
CAP, CERM, 68 pF, 50 V, ±5%, C0G/NP0, 0603
TDK
C1608C0G1H680J
1
CC3
CAP, CERM, 470 pF, 50 V, ±5%, C0G/NP0, 0603
TDK
C1608C0G1H471J
1
CSS
CAP, CERM, 0.033 µF, 16 V, ±10%, X7R, 0603
MuRata
GRM188R71C333KA01D
1
LF
Inductor, Shielded Core, 240 nH, 20 A, 1 m
Ω, SMD
Würth
744314024
1
RF
RES, 1
Ω, 5%, 0.1 W, 0603
Vishay Dale
CRCW06031R00JNEA
1
RC1
RES, 4.87 k
Ω, 1%, 0.1 W, 0603
Vishay Dale
CRCW06034K87FKEA
1
RC2
RES, 210
Ω, 1%, 0.1 W, 0603
Vishay Dale
CRCW0603210RFKEA
1
REN1, RFB1, RPGOOD RES, 10 kΩ, 1%, 0.1 W, 0603
Vishay Dale
CRCW060310K0FKEA
3
REN2
RES, 19.6 k
Ω, 1%, 0.1 W, 0603
Vishay Dale
CRCW060319K6FKEA
1
RFB2
RES, 20 k
Ω, 1%, 0.1 W, 0603
Vishay Dale
CRCW060320K0FKEA
1
U1
LM21215A Synchronous Buck Regulator
TI
LM21215AMH-1/NOPB
1
26
Submit Documentation Feedback
Copyright © 2011–2016, Texas Instruments Incorporated
Product Folder Links: LM21215A


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
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