IR3475MTR1PBF International Rectifier, IR3475MTR1PBF Datasheet - Page 4

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IR3475MTR1PBF

Manufacturer Part Number
IR3475MTR1PBF
Description
IC BUCK SYNC ADJ 10A PQFN
Manufacturer
International Rectifier
Series
SupIRBuck™r
Type
Step-Down (Buck), PWM - Current Moder
Datasheet

Specifications of IR3475MTR1PBF

Internal Switch(s)
Yes
Synchronous Rectifier
Yes
Number Of Outputs
1
Voltage - Output
0.5 V ~ 12 V
Current - Output
10A
Frequency - Switching
Up to 750kHz
Voltage - Input
3 V ~ 27 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
*
Package / Case
*
Primary Input Voltage
27V
No. Of Outputs
1
Output Voltage
12V
Output Current
10A
No. Of Pins
17
Operating Temperature Range
-40°C To +125°C
Peak Reflow Compatible (260 C)
Yes
Rohs Compliant
Yes
Leaded Process Compatible
Yes
Part Status
Preferred
Package
PQFN / 4 x 5
Circuit
Single Output
Iout (a)
10
Switch Freq (khz)
0 - 750
Input Range (v)
3.0 - 27
Output Range (v)
0.5 - 12
Ocp Otp Uvlo Pre-bias Soft Start And
Constant On-Time + PGOOD + EN + Temp Comp OCP
Digital Home Media
Yes
Mobile Computing
Yes
Industrial 24v Input
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
TYPICAL APPLICATION 
 
DEMOBOARD BILL OF MATERIALS 
SW1
EN / FCCM
TP4
EN
QTY 
VCC
R2
10K
TP11
PGOOD
+3.3V
REFERENCE DESIGNATOR 
4
VSW
+3.3V
R5
10K
R1
10K
TP13
SS
TP14
+3.3V
TP26
AGND
TP16
VCC
TP17
PGND
C1, C21, C25 
R1, R2, R5 
February 16, 2011  |  ADVANCED DATASHEET  |  V1.8  |  PD97602
C12, C20 
R4
13.7K
SW1 
C10 
R11 
R12 
U1 
C2 
C3 
C4 
C9 
L1 
R3 
R4 
R7 
R8 
+3.3V
VCC
EN
C23
open
FCCM
ISET
PGOOD
FB
SS
C20
0.1uF
R12
4.99 ohms
Figure 4: Demoboard Schematic for VOUT = 1.05V, F
C21
1uF
1
2
3
4
5
6
7
FCCM
ISET
PGOOD
GND1
FB
SS
NC1
0.100uF 
TP28
VID
VALUE 
IR3475
1.00uF 
22.0uF 
0.22uF 
IR3475 
330uF 
1.5uH 
10.0K 
13.7K 
2.80K 
2.55K 
47uF 
68uF 
200K 
SPST 
4.99 
TP27
A
20 
R3
200K
C25
1uF
R11
20
R10
open
PHASE
TP25
B
U1
IR3475
C22
open
inductor, ferrite, 1.5uH, 16.0A, 3.8mOhm, SMT 
C4
0.22uF
12
capacitor, electrolytic, 330uF, 2.5V, 0.2, 7343 
resistor, thick film, 10.0K, 1/10W, 0.01, 0603 
resistor, thick film, 2.55K, 1/10W, 0.01, 0603 
resistor, thick film, 13.7K, 1/10W, 0.01, 603 
resistor, thick film, 2.80K, 1/10W, 0.01, 603 
capacitor, electrolytic, 68uF, 25V, 0.2, SMD 
resistor, thick film, 200K, 1/10W, 0.01, 603 
resistor, thick film, 4.99, 1/10W, 0.01, 603 
resistor, thick film, 20, 1/10W, 0.01, 603 
1
capacitor, X5R, 22.0uF, 16V, 20%, 1206 
capacitor, X7R, 1.00uF, 25V, 0.1, 0603 
capacitor, X7R, 0.100uF, 25V, 0.1, 603 
capacitor, X5R, 0.22uF, 10V, 0.1, 0603 
switch, DIP, SPST, 2 position, SMT 
10A Highly Integrated SupIRBuck
capacitor, 47uF, 6.3V, 805 
R9
open
Q1
open
VIN
VSW
4mm x 5mm QFN 
DESCRIPTION 
R6
open
 
L1
1.5uH
C14
open
C13
open
R13
open
C24
open
C1
1uF
R7
2.80K
R8
2.55K
C2
22uF
+
S
 = 300kHz 
C3
68uF
C6
open
C15
open
MANUFACTURER 
C&K Components 
C7
open
C16
open
Taiyo Yuden 
Vishay/Dale 
Panasonic 
Murata 
TP1
VINS
TP6
PGNDS
Cyntec 
Sanyo 
KOA 
KOA 
KOA 
KOA 
KOA 
KOA 
TDK 
TDK 
TDK 
IRF 
C8
open
C17
open
TM
TP2
VIN
TP5
PGND
C9
330uF
C18
open
 
C10
47uF
C19
open
GRM188R71E105KA12D 
CRCW06034R99FNEA 
PIMB104T‐1R5MS‐39 
IR3475
EMK316BJ226ML‐T 
RK73H1JLTD20R0F 
RK73H1JLTD2003F 
RK73H1JLTD1372F 
RK73H1JLTD2801F 
C11
open
C26
open
C2012X5R0J476M 
C1608X5R1A224K 
PART NUMBER 
C1608X7R1E104K 
IR3475MTRPBF 
RK73H1J1002F 
RK73H1J2551F 
EEV‐FK1E680P 
2R5TPE330M9 
SD02H0SK 
VOUT
C12
0.1uF
C27
open
TP23
VOUTS
TP24
PGNDS
TP18
VOLTAGE SENSE
TP7
VOUT
TP10
PGND
 

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