IR3856MTRPBF International Rectifier, IR3856MTRPBF Datasheet - Page 9

• Manufacturer Part Number: IR3856MTRPBF
• Description: IC BUCK SYNC ADJ 6A 17PQFN
• Manufacturer: International Rectifier
• Series: SupIRBuck™r
• Type: Step-Down (Buck)r

Specifications of IR3856MTRPBF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.7 ~ 18.9 V
• Current - Output: 6A
• Frequency - Switching: 250kHz ~ 1.5MHz
• Voltage - Input: 1.5 ~ 21 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 17-PowerVQFN
• Power - Output: 1.11W
• Primary Input Voltage: 21V
• No. Of Outputs: 1
• Output Voltage: 18.9V
• Output Current: 6A
• No. Of Pins: 17
• Operating Temperature Range: -40°C To +125°C
• Peak Reflow Compatible (260 C): Yes
• Rohs Compliant: Yes
• Leaded Process Compatible: Yes
• Part Status: Preferred
• Package: PQFN / 4 x 5
• Circuit: Single Output
• Iout (a): 6
• Switch Freq (khz): 250 - 1500
• 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 + OVP + SYNC
• Design Tool: Yes
• Server Storage: Yes
• Routers Switches: Yes
• Base Station Telecom: Yes
• Digital Home Media: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Rev2.0
Typical Efficiency and Power Loss Curves
Vin=5V, Vcc=5V, Io=0.6A- 6A, Fs=600kHz, Room Temperature, No Air Flow
The table below shows the inductors used for each of the output voltages
in the efficiency measurement.
Vo (V)
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
1.40
1.30
1.20
1.10
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
1.2
1.5
1.8
3.3
1
0.6
0.6
1.0V
1.2
1.0Vout
1.2
L (uH)
0.68
0.68
0.82
1.00
1.00
1.8
1.8
P/N
PCMB065T-0R68
PCMB065T-0R68
SPM6550T-0R82M
SPM6550T-1R0M
SPM6550T-1R0M
1.2V
1.2Vout
2.4
2.4
Load Current (A)
Load Current (A)
3.0
3.0
1.5Vout
1.5V
3.6
3.6
4.2
4.2
1.8Vout
1.8V
DCR (mOhm)
4.8
4.8
3.9
3.9
4.2
4.7
4.7
IR3856MPbF
3.3Vout
5.4
5.4
3.3V
6.0
6.0
PD-97528
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