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PDF LD1003S Data sheet ( Hoja de datos )
| Número de pieza | LD1003S | |
| Descripción | High Performance N-Channel POWERJFET | |
| Fabricantes | Lovoltech | |
| Logotipo |  |
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PWRLITE LD1003S
High Performance N-Channel POWERJFETTM with Schottky Diode
Features
Trench Power JFET with low threshold voltage Vth.
Device fully “ON” with Vgs = 0.7V
Optimum for “Low Side” Buck Converters
Optimized for Secondary Rectification in isolated DC-DC
Low Rg and low Cds for high speed switching
www.DataSheet4U.cNoom“Body Diode”; extremely low Cds
Added Fast Recovery Schottky Diode in same package
Applications
DC-DC Converters
Synchronous Rectifiers
PC Motherboard Converters
Step-down power supplies
Brick Modules
VRM Modules
DPAK Pin Assignments
4
2
13
Case TO252
DPAK (LD1003S)
(Surface Mount)
Description
The Power JFET transistor from Lovoltech is a device that
presents a Low Rdson allowing for improved efficiencies in DC-
DC switching applications. The device is designed with a low
threshold such that drivers can operate at 5V, which reduces the
driver power dissipation and increases the overall efficiency.
Lower threshold produces faster turn-on/turn-off, which
minimizes the required dead time. The transistor “No Body
Diode” provides a very low associated parasitic capacitance Cds.
A Schottky Diode is added for applications where a freewheeling
diode is required. Ringing is also reduced so that a lower voltage
device may be a better solution.
D
G
S
N – Channel JFET
And Schottky Diode
Pin Definitions
Pin Number Pin Name Pin Function Description
1 Gate Gate. Transistor Gate
2, 4 Drain Drain. Transistor Drain
3 Source Source. Transistor Source
Absolute Maximum Ratings
Parameter
Drain-Source Voltage
Gate-Source Voltage
Gate-Drain Voltage
Continuous Drain Current
Pulsed Drain Current
Single Pulse Drain-to-Source Avalanche Energy at 25°C
(VDD= 5VDC, IL=60APK, L=0.3mH, RG=100 Ω)
Junction Temperature
Storage Temperature
Lead Soldering Temperature, 10 seconds
Power Dissipation (Derated at 25°C)
VDS (V)
24V
Symbol
VDS
VGS
VGD
ID
ID
EAS
TJ
TSTG
T
PD
Product Summary
Rdson (Ω)
0.0045
ID (A)
50
Ratings
24
-10
-28
50
100
220
Units
V
V
V
A
A
mJ
-55 to 150°C
-65 to 150°C
260°C
80
°C
°C
°C
W
LD1003S.Rev 0.93 PR 12-04
1 page  
Ordering Information
Product Number
PN Marking
LD1003S
LD1003S
Package
TO252 (DPAK)
Package and Marking Information:
DIMENSIONS
DIM.
mm.
inch
TYP. MIN. MAX. TYP. MIN. MAX.
A
2.19 2.40
0.086 0.094
A1
0.89 1.14
0.035 0.045
A2
www.DataSheet4U.comb
0.03 0.13
0.76 1.14
0.001 0.005
0.030 0.045
b1
0.55 0.90
0.022 0.035
B2
5.20 5.46
0.205 0.215
C
0.45 0.60
0.017 0.023
C2
0.45 0.58
0.017 0.023
D
5.97 6.22
0.235 0.245
D1 5.30
0.208
E
6.35 6.73
0.250 0.265
e 2.28
0.090
H
9.35 10.42
0.368 0.410
L2
0.88 1.27
0.035 0.050
L3
1.86 3.57
0.073 0.140
L4
0.64 1.02
0.025 0.040
R 0.20
0.008
Alternate
D
5.40 5.60
0.213 0.220
L2
1.25 1.75
0.049 0.069
L3
2.60 2.80
0.102 0.110
H
9.65 9.75
0.380 0.384
Notes:
This product is Pb-Free and has Tin Plated leads
EA
C2
B2
LD1003S
XXXXX
XXXX
R
e
b
b1
A2
A1
C
Back View
Life Support Policy
LOVOLTECH’s PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF LOVOLTECH, Inc. As used herein:
1. Life support devices or systems are devices or systems which (a) are intended for surgical implant into the body, or (b) support or
sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling can
be reasonably expected to result in a significant injury of the user.
2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to
cause the failure of the life support device or system, or to affect its safety or effectiveness.
Datasheet Identification
Advance Information
Preliminary
No Identification Needed
Product Status
In definition or in
Design
Initial Production
In Production
Definition
This datasheet contains the design specifications for product development.
Specifications may change without notice.
This datasheet contains preliminary data; additional and application data will be
published at a later date. Lovoltech, Inc. reserves the right to make changes at any
time without notice in order to improve design.
This datasheet contains final specifications. Lovoltech reserves the right to make
changes at any time without notice in order to improve the design.
LD1003S
Lovoltech, Inc. - 3970 Freedom Circle - Santa Clara, CA 95054 -USA
5
Tel. 1 408 654 1980 Fax 1 408 654 1988 www.lovoltech.com
Product Specification
5 Page | ||
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