IR3843AMTR1PBF International Rectifier, IR3843AMTR1PBF Datasheet - Page 6

• 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

Electrical Specifications (continued)
Unless otherwise specified, these specifications apply over 4.5V< V
Typical values are specified at T
Rt Voltage
Error Amplifier
Over Current Protection
OCSET Current
OC Comp Offset Voltage
SS off time
Bootstrap Diode
Forward Voltage
Deadband
Deadband time
Frequency
Rev 13.0
Oscillator
Ramp Amplitude
Ramp Offset
Min Pulse Width
Fixed Off Time
Max Duty Cycle
Input Offset Voltage
Input Bias Current
Input Bias Current
Sink Current
Source Current
Slew Rate
Gain-Bandwidth Product
DC Gain
Maximum Voltage
Minimum Voltage
Common Mode Voltage
Soft Start/SD
Soft Start Current
Soft Start Clamp Voltage
Shutdown Output Threshold
Parameter
Isource(E/A)
Ramp (os)
Vss(clamp)
SS_Hiccup
Symbol
Dmin(ctrl)
Isink(E/A)
Vmax(E/A)
Vmin(E/A)
IFb(E/A)
IVp(E/A)
Vramp
V
Dmax
GBWP
I
OCSET
OFFSET
Vos
Gain
ISS
SR
SD
F
S
a
= 25
o
Rt=59K
Rt=28.7K
Rt=11.5K, Note4
Note4
Note4
Note4
Note4
Fs=250kHz
Vfb-Vseq,
Vseq=0.8V
Note4
Note4
Note4
Vcc=4.5V
Note4
Source
Fs=250kHz
Fs=500kHz
Fs=1200kHz, Note4
Note4
I(Boot)=30mA
Note4
C.
Test Condition
0.665
Min
1080
cc
0.40
20.8
225
450
180
-10
-10
2.7
92
100
3.4
14
43
-1
-1
20
8
7
5
0
<5.5V, V
TYP
121.7
1200
4096
0.85
23.6
48.8
250
500
100
130
260
0.7
1.8
0.6
110
120
3.0
10
12
20
10
3.5
0
30
0
IR3843AMPbF
in
=12V, 0
MAX
0.735
1320
26.4
54.6
275
550
200
+10
+10
470
1.2
3.75
3.3
0.3
120
220
+1
+1
13
20
26
30
40
1
o
C<T
j
< 125
PD-97509
Units
Cycles
Vp-p
V/μs
kHz
mV
mA
MHz
mV
mV
μA
μA
μA
ns
%
mV
ns
dB
V
V
V
V
V
o
C.
6