IRF6636PBF_15 Datasheet, PDF (1/10 Pages) International Rectifier – Ideal for CPU Core DC-DC Converters

PD - 97219
IRF6636PbF
IRF6636TRPbF
l RoHs Compliant 
l Lead-Free (Qualified up to 260°C Reflow)
l Application Specific MOSFETs
l Ideal for CPU Core DC-DC Converters
l Low Conduction Losses
l High Cdv/dt Immunity
l Low Profile (<0.7mm)
l Dual Sided Cooling Compatible 
l Compatible with existing Surface Mount Techniques 
DirectFET™ Power MOSFET ‚
Typical values (unless otherwise specified)
V_DSS
V_GS
R_DS(on)
R_DS(on)
20V max ±20V max 3.2mΩ@ 10V 4.6mΩ@ 4.5V
Q_{g tot} Q_gd
Q_gs2
Q_rr
Q_oss V_gs(th)
18nC 6.1nC 1.9nC 7.3nC 10nC 1.8V
ST
Applicable DirectFET Outline and Substrate Outline (see p.7,8 for details)
SQ
SX
ST
MQ
MX
MT
DirectFET™ ISOMETRIC
Description
The IRF6636PbF combines the latest HEXFET® Power MOSFET Silicon technology with the advanced DirectFET^TM packaging to achieve
the lowest on-state resistance in a package that has the footprint of a MICRO-8 and only 0.7 mm profile. The DirectFET package is
compatible with existing layout geometries used in power applications, PCB assembly equipment and vapor phase, infra-red or convection
soldering techniques, when application note AN-1035 is followed regarding the manufacturing methods and processes. The DirectFET pack-
age allows dual sided cooling to maximize thermal transfer in power systems, improving previous best thermal resistance by 80%.
The IRF6636PbF balances both low resistance and low charge along with ultra low package inductance to reduce both conduction and
switching losses. The reduced total losses make this product ideal for high efficiency DC-DC converters that power the latest generation of
processors operating at higher frequencies. The IRF6636PbF has been optimized for parameters that are critical in synchronous buck
operating from 12 volt buss converters including Rds(on) and gate charge to minimize losses in the control FET socket.
Absolute Maximum Ratings
Parameter
Max.
Units
V_DS
Drain-to-Source Voltage
20
V
V_GS
I_D @ T_A = 25°C
I_D @ T_A = 70°C
I_D @ T_C = 25°C
I_DM
E_AS
I_AR
Gate-to-Source Voltage
e Continuous Drain Current, V_GS @ 10V
e Continuous Drain Current, V_GS @ 10V
f Continuous Drain Current, V_GS @ 10V
g Pulsed Drain Current
h Single Pulse Avalanche Energy
Ãg Avalanche Current
±20
18
15
A
81
140
28
mJ
14
A
20
6.0
ID = 18A
5.0 ^{ID= 14A VDS= 16V}
15
4.0
VDS= 10V
10
TJ = 125°C
5
TJ = 25°C
0
0 1 2 3 4 5 6 7 8 9 10
VGS, Gate -to -Source Voltage (V)
Fig 1. Typical On-Resistance vs. Gate Voltage
Notes:
 Click on this section to link to the appropriate technical paper.
‚ Click on this section to link to the DirectFET Website.
ƒ Surface mounted on 1 in. square Cu board, steady state.
www.irf.com
3.0
2.0
1.0
0.0
0
10
20
30
QG Total Gate Charge (nC)
Fig 2. Typical Total Gate Charge vs. Gate-to-Source Voltage
„ T_C measured with thermocouple mounted to top (Drain) of part.
… Repetitive rating; pulse width limited by max. junction temperature.
† Starting T_J = 25°C, L = 0.27mH, R_G = 25Ω, I_AS = 14A.
1
05/29/06