IR3476MTRPBF International Rectifier, IR3476MTRPBF Datasheet - Page 4

• Manufacturer Part Number: IR3476MTRPBF
• Description: IC BUCK SYNC ADJ 12A PQFN
• Manufacturer: International Rectifier
• Series: SupIRBuck™r
• Type: Step-Down (Buck), PWM - Current Moder

Specifications of IR3476MTRPBF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.5 V ~ 12 V
• Current - Output: 12A
• 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: 12A
• 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 / 5 x 6
• Circuit: Single Output
• Iout (a): 12
• 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
3
1
2
1
1
1
1
1
3
1
1
1
1
1
1
R2
10K
TP19
FB
TP11
PGOOD
TP3
FCCM
+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 | PD97603
C12, C20
R4
10.5K
SW1
C10
C5
open
U1
C2
C3
C4
C9
L1
R3
R4
R7
R8
+3.3V
VCC
C23
open
EN
FCCM
ISET
PGOOD
FB
SS
C20
0.1uF
+Vdd2s
-Vdd2s
Figure 4: Demoboard Schematic for VOUT = 1.05V, F
1
2
3
4
5
6
7
FCCM
ISET
PGOOD
GND1
FB
SS
NC1
C21
1uF
IR3476
VALUE
0.100uF
IR3476
1.00uF
22.0uF
0.22uF
Switch
330uF
1.5uH
10.0K
10.5K
2.80K
2.55K
47uF
68uF
200K
R3
200K
C25
1uF
PHASE
U1
IR3476
+Vin1s
C22
open
C4
0.22uF
capacitor, Y5V, 0.22uF, 50V, ‐20%, +80%, 0603
12
resistor, thick film, 10.0K, 1/10W, 0.01, 0603
resistor, thick film, 2.55K, 1/10W, 0.01, 0603
-Vout1s
capacitor, electrolytic, 68uF, 25V, 0.2, SMD
resistor, thick film, 10.5K, 1/10W, 0.01, 603
resistor, thick film, 2.80K, 1/10W, 0.01, 603
resistor, thick film, 200K, 1/10W, 0.01, 603
+Vdd1s
-Vdd1s
inductor, ferrite, 1.5uH, 16.0A, 3.8mOhm,
capacitor, X5R, 22.0uF, 16V, 20%, 1206
capacitor, X7R, 1.00uF, 25V, 0.1, 0603
capacitor, X7R, 0.100uF, 50V, 0.1, 603
TP20
+Vin1s
switch, DIP, SPST, 2 position, SMT
2
12A Highly Integrated SupIRBuck
capacitor, 330uF, 2.5V, SMD
capacitor, 47uF, 6.3V, 805
5
VIN
VSW
R6
open
TP12
VSWS
5mm x 6mm QFN
DESCRIPTION
TP22
+Vsws
TP21
-Vsws
TP15
-Vout1s
TP25
-Vin1s
C14
open
L1
1.5uH
SMT
C13
open
C1
1uF
VOUT
TP9
+Vout1s
R7
2.80K
R8
2.55K
R11
open
R12
open
C2
22uF
open
C24
+
S
= 300kHz
C3
68uF
C6
open
C15
open
R13
open
+Vins
-Vins
MANUFACTURER
C&K Components
C7
open
C16
open
Taiyo Yuden
R14
open
Panasonic
Murata
Murata
TP1
VINS
TP6
PGNDS
Cyntec
Sanyo
KOA
KOA
KOA
KOA
KOA
TDK
TDK
IRF
C8
open
C17
open
TM
TP2
VIN
TP5
PGND
C9
330uF
C18
open
C10
47uF
C19
open
GRM188R71E105KA12D
GRM188F51H224ZA01D
PIMB104T‐1R5MS‐39
IR3476
C26
open
EMK316BJ226ML‐T
RK73H1JLTD2003F
RK73H1JLTD1052F
RK73H1JLTD2801F
C11
open
C2012X5R0J476M
C1608X7R1H104K
PART NUMBER
IR3476MTRPBF
RK73H1J1002F
RK73H1J2551F
EEV‐FK1E680P
2R5TPE330M9
SD02H0SK
C27
open
C12
0.1uF
2
TP23
+Vsws
TP24
+Vsws
TP18
VOLTAGE SENSE
5
TP8
VOUTS
TP7
VOUT
TP10
PGND