IP2005APBF International Rectifier, IP2005APBF Datasheet - Page 10

• Manufacturer Part Number: IP2005APBF
• Description: IC PWR BLOCK SYNC BUCK 40A LGA
• Manufacturer: International Rectifier
• Series: iPOWIR™r
• Type: Step-Down (Buck)r

Specifications of IP2005APBF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 5.5 V
• Current - Output: 40A
• Frequency - Switching: 250kHz ~ 1.5MHz
• Voltage - Input: 6.5 ~ 13.2 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: Power Block (LGA)
• Power - Output: 9.3W
• Package: LGA - 7.7 x 7.7
• Circuit: Power Stage
• Iout (a): 40
• Switch Freq (khz): 250 - 1500
• Input Range (v): 6.5 - 13.2
• Output Range (v): 0.8 - 5.5
• Ocp Otp Uvlo Pre-bias Soft Start And: UVLO (no OVP OCP OTP nor Soft Start)
• Pbf: PbF Option Available
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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1. Draw a line from Case Temperature axis to the PCB Temperature axis.
2. Draw a vertical line from the T
3. Draw a horizontal line from the intersection of the vertical line with the SOA curve to the
4. Draw a new vertical line from the T
5. Draw a horizontal line from the intersection of the new vertical line with the SOA curve to
The SOA adjustment indicates the part is still allowed to run at a continuous current of 36A.
Calculating SOA Temperature:
T
Assuming T
The following example shows how the SOA current is adjusted for T
X
axis intercept adjustment ≈ -1.2 ºC + 0.0 ºC + 0.6 ºC – 3.5 ºC ≈ -4.1 ºC
Y-axis (Output Current). The point at which the horizontal line meets the Y-axis is the
SOA continuous current.
temperature from the original T
the Y-axis (Output Current). The point at which the horizontal line meets the Y-axis is
the new SOA continuous current.
PCB
(Figure 3)
(Figure 4)
(Figure 5)
(Figure 6)
= 100ºC & T
L
F
V
V
OUT
V
SW
OUT
IN
DD
= 12.0V
= 300nH
= 1MHz
= 5.0V
= 1.3V
SOA temperature adjustment for input voltage ≈ -1.2ºC
SOA temperature adjustment for output voltage ≈ 0.0ºC
SOA temperature adjustment for output inductor ≈ 0.6 ºC
SOA temperature adjustment for switch frequency ≈ -3.5 ºC
CASE
= 110ºC
X
X
axis intercept to the SOA curve.
intercept point.
X
2/8/2008
axis by adding or subtracting the SOA adjustment
iP2005APbF
X
decrease of 4.1ºC
PD-60325
10