IR3843AMTR1PBF International Rectifier, IR3843AMTR1PBF Datasheet - Page 28

• 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

Rev 13.0
Simultaneous Tracking at Power Up and Power Down
Vin=12V, Vo=1.8V, Io=3A, Room Temperature, No Air Flow
Fig. 25: Simultaneous Tracking a 3.3V input at power-up and shut-down
4.99K
3.16K
3.3V
R
R
s2
s1
Ch2: Vout Ch3:SS Ch4: Seq
Seq
IR3843A
IR3624
Fb
V
OUT
R
R
9
8
4.99K
3.16K
IR3843AMPbF
PD-97509
28