IR3843AMTR1PBF International Rectifier, IR3843AMTR1PBF Datasheet - Page 24

• Manufacturer Part Number: IR3843AMTR1PBF
• Description: IC REG SYNC BUCK 3A 15-QFN
• Manufacturer: International Rectifier
• Series: SupIRBuck™r
• Type: Step-Down (Buck)r

Specifications of IR3843AMTR1PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.7 ~ 18.9 V
• Current - Output: 3A
• Frequency - Switching: 225kHz ~ 1.32MHz
• Voltage - Input: 1.5 ~ 21 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 15-PowerVQFN
• Power - Output: 682mW
• Part Status: Active
• Package: PQFN / 5 x 6
• Circuit: Single Output
• Iout (a): 3
• Switch Freq (khz): 250 - 1200
• Input Range (v): 1.5 - 21
• Output Range (v): 0.7 - 0.9*Vin
• Ocp Otp Uvlo Pre-bias Soft Start And: PGOOD + EN + SEQ
• Digital Home Media: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: IR3843AMTR1PBFTR

Part Reference
Cin
Lo
Co
R1
R2
R
R
R
C
R3
C3
C4
R8
R9
R10
C7
C
U1
Rev 13.0
Application Diagram:
t
ocset
PG
ss
Vcc
C6
Fig. 16. Application circuit diagram for a 12V to 1.8 V, 3 A Point Of Load Converter
Quantity Value
Suggested Bill of Materials for the application circuit:
1
1
1
1
3
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
330uF
10uF
0.1uF
2.2uH
22uF
49.9k
7.5k
23.7k
2.26k
10k
0.1uF
2.74k
180pF
8.2nF
4.99k
3.16k
158
2200pF
1.0uF
IR3843A
Description
SMD Elecrolytic, Fsize, 25V, 20%
1206, 16V, X5R, 20%
0603, 25V, X7R, 10%
7x6.5x5mm, 20%, 8A
0805, 6.3V, X5R, 20%
Thick Film, 0603,1/10 W,1%
Thick Film, 0603,1/10W,1%
Thick Film, 0603,1/10W,1%
Thick Film, 0603,1/10W,1%
Thick Film, 0603,1/10W,1%
0603, 25V, X7R, 10%
Thick Film, 0603,1/10W,1%
50V, 0603, NPO, 5%
0603, 50V, X7R, 10%
Thick Film, 0603,1/10W,1%
Thick Film, 0603,1/10W,1%
Thick Film, 0603,1/10W,1%
0603, 50V, X7R, 10%
0603, 16V, X5R, 20%
SupIRBuck, 3A, PQFN 5x6mm
Manufacturer
Panasonic
TDK
Panasonic
Cyntec
Panasonic
Rohm
Rohm
Rohm
Rohm
Rohm
Panasonic
Rohm
Panasonic
Panasonic
Rohm
Rohm
Rohm
Panasonic
Panasonic
International Rectifier IR3843AMPbF
IR3843AMPbF
Part Number
EEV-FK1E331P
C3216X5R1E106M
ECJ-1VB1E104K
PCMB065T-2R2MS
ECJ-2FB0J226ML
MCR03EZPFX4992
MCR03EZPFX7501
MCR03EZPFX2372
MCR03EZPFX2261
MCR03EZPFX1002
ECJ-1VB1E104K
MCR03EZPFX2741
ECJ-1VC1H181J
ECJ-1VB1H822K
MCR03EZPFX4991
MCR03EZPFX3161
ERJ-3EKF1580V
ECJ-1VB1H222K
ECJ-BVB1C105M
PD-97509
24