IR3553MTRPBF International Rectifier, IR3553MTRPBF Datasheet - Page 8

• Manufacturer Part Number: IR3553MTRPBF
• Description: The IR3553 integrated PowIRstage is a synchronous buck gate driver IC with co‐packed control and synchronous MOSFETs and Schottky diode.
• Manufacturer: International Rectifier

Specifications of IR3553MTRPBF

• Package: PQFN / 4 x 6
• Iout (a): 40
• Switch Freq (khz): up to 1.0MHz
• Input Range (v): 4.5 - 15
• Output Range (v): 0.25 - (VCC -2.5)

Notes
1. Guaranteed by design but not tested in production
2. V
3. V
ambient temperature, and 8-layer PCB of 3.7” (L) x 2.6” (W). PWM controller loss and inductor loss are not included.
temperature, and 8-layer PCB of 3.7” (L) x 2.6” (W). PWM controller loss and inductor loss are not included.
VCC Supply Current
VIN Supply Leakage Current
BOOST Supply Current
REFIN Bias Current
SW Floating Voltage
SW Pull Down Resistance
IN
IN
=12V, V
=12V, V
OUT
OUT
8
PARAMETER
=1.2V, ƒ
=1.2V, ƒ
March 12, 2012 | FINAL DATASHEET
SW
SW
= 300kHz, L=210nH (0.2mΩ), VCC=6.8V, C
= 400kHz, L=150nH (0.29mΩ), VCC=7V, C
I
I
VCC
VIN
I
I
V
R
BOOST
REFIN
SW_PULLDOWN
SW_FLOAT
SYMBOL
40A Integrated PowIRstage®
VIN = 20V, 125C, V(PWM) =
Tri-State
8V
V(PWM) = Tri-State
BBRK# is Low or VCC = 0V
VCC = 4.5V to 7V
4.75V < V(BOOST)-V(SW) <
IN
IN
=47uF x 4, C
=47uF x 4, C
CONDITIONS
OUT
OUT
=470uF x3, no airflow, no heat sink, 25°C ambient
=470uF x3, 400LFM airflow, no heat sink, 25°C
MIN
0.5
-1.5
4
TYP
1.5
0.2
18
0
8
IR3553
MAX
3.0
0.4
12
1
1
UNIT
mA
mA
µA
µA
kΩ
V