© Semiconductor Components Industries, LLC, 2015
August, 2018 Rev. 3
1 Publication Order Number:
FDMF3035/D
FDMF3035
Smart Power Stage (SPS)
Module
Description
The SPS family is ON Semiconductors nextgeneration, fully
optimized, ultracompact, integrated MOSFET plus driver power
stage solution for highcurrent, highfrequency, synchronous buck,
DC DC applications. The FDMF3035 integrates a driver IC with a
bootstrap Schottky diode and two power MOSFETs into a thermally
enhanced, ultracompact 5 mm x 5 mm package.
With an integrated approach, the SPS switching power stage is
optimized for driver and MOSFET dynamic performance, minimized
system inductance, and power MOSFET R
DS(ON)
. The SPS family
uses ON
Semiconductors highperformance PowerTrench
®
MOSFET technology, which reduces switch ringing, eliminating the
need for a snubber circuit in most buck converter applications.
A driver IC with reduced dead times and propagation delays further
enhances the performance. The FDMF3035 supports diode emulation
(using FCCM pin) for improved lightload efficiency. The
FDMF3035 also provides a 3state 5 V PWM input for compatibility
with a wide range of PWM controllers.
Features
Supports PS4 Mode for IMVP8
UltraCompact 5 mm x 5 mm PQFN CopperClip Package with Flip
Chip LowSide MOSFET
High Current Handling: 50 A
3State 5 V PWM Input Gate Driver
Low Shutdown Current I
VCC
< 6 mA
Diode Emulation for Enhanced Light Load Efficiency
ON Semiconductor PowerTrench MOSFETs for Clean Voltage
Waveforms and Reduced Ringing
ON Semiconductor SyncFETTechnology (Integrated Schottky
Diode) in LowSide MOSFET
Integrated Bootstrap Schottky Diode
Optimized / Extremely Short DeadTimes
UnderVoltage Lockout (UVLO) on VCC
Optimized for Switching Frequencies up to 1.5 MHz
Operating Junction Temperature Range:
40°C to +125°C
ON Semiconductor Green Packaging and RoHS Compliance
Applications
Notebook, Tablet PC and Ultrabook
Servers and Workstations, VCore and NonVCore DCDC
Converters
Desktop and AllinOne Computers, VCore and NonVCore
DCDC Converters
HighCurrent DCDC PointofLoad Converters
Small FormFactor Voltage Regulator Modules
PQFN31 5y5, 0.5P
CASE 483BR
SCALE 2.5:1
See detailed ordering and shipping information on page 2 of
this data sheet.
ORDERING INFORMATION
www.onsemi.com
MARKING DIAGRAM
$Y = ON Semiconductor Logo
&Z = Assembly Plant Code
&3 = Numeric Date Code
&K = Lot Code
FDMF3035 = Specific Device Code
$Y&Z&3&K
FDMF
3035
FDMF3035
www.onsemi.com
2
ORDERING INFORMATION
Part Number Current Rating Package Top Mark
FDMF3035 50 A 31Lead, Clip Bond PQFN SPS, 5.0 mm x 5.0 mm Package FDMF3035
APPLICATION DIAGRAM
Figure 1. Typical Application Diagram
C
VIN
C
VCC
C
PVCC
FDMF3035
PWM
FCCM
PVCC VCC VIN
BOOT
PHASE
SW
AGND
R
VCC
V
IN
V
5V
PWM Input
V
OUT
L
OUT
R
BOOT
C
BOOT
C
OUT
PGND
GL
V
SW
FCCM Input
FUNCTIONAL BLOCK DIAGRAM
Figure 2. Functional Block Diagram
PWM
FCCM
LEVEL
SHIFT
PVCC
PVCC
VIN
SW
D
Boot
BOOT
PGND
CONTROL
LOGIC
LDRV
HDRV
(Q1)
High Side
MOSFET
PHASE
SHOOT THROUGH
PROTECTION
(Q2)
Low Side
MOSFET
VCC
VCC
GL
AGND
10 mA
10 mA
10 k
FDMF3035
www.onsemi.com
3
PIN CONFIGURATION
Figure 3. Pin Configuration Top View and Transparent View
9
10
11
12
13
14
15
16 17 18 19 20 21 22 23
24
25
26
27
28
29
30
31
87654321
FDMF3035
PWM
FCCM
VCC
AGND
BOOT
N/C
PHASE
VIN
SW
SW
SW
GL
PGND
PVCC
N/C
N/C
PGND
PGND
PGND
PGND
VIN
VIN
VIN
SW
SW
SW
SW
SW
SW
SW
SW
8 7 6 5 4 3 2 1
16 17 18 19 20 21
22 23
24 25 26
27 28 29 30 31
9 10 11 12
13 14 15
32
AGND
33
GL
PIN DEFINITIONS
Pin # Name Description
1 PWM PWM input to the gate driver IC
2
FCCM
The FCCM pin enables or disables Diode Emulation. When FCCM is LOW, diode
emulation is allowed. When FCCM is HIGH, continuous conduction mode is forced.
High impedance on the input of FCCM will shut down the driver IC (and module)
3 VCC Power supply input for all analog control functions; this is the “quiet” V
CC
4, 32 AGND Analog ground for analog portions of the IC and for substrate, pin 4 and pin 32 are
internally fused (shorted)
5 BOOT Supply for highside MOSFET gate driver. A capacitor from BOOT to PHASE supplies
the charge to turn on the Nchannel highside MOSFET. During the freewheeling
interval (LS MOSFET on), the high side capacitor is recharged by an internal diode
connected to PVCC
6, 30, 31 N/C No connect
7 PHASE Return connection for the boot capacitor
8~11 VIN Power input for the power stage
12~15, 28 PGND Power return for the power stage
16~26 SW Switching node junction between high and low side MOSFETs; also the input into both
the gate driver SW node comparator and the ZCD comparator
27, 33 GL Lowside MOSFET gate monitor
29 PVCC Power supply input for LS (Note 1) gate driver and boot diode
1. LS = Low Side.

FDMF3035

Mfr. #:
Manufacturer:
ON Semiconductor / Fairchild
Description:
Gate Drivers SMART POWER STAGE MODULE
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet