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PDF RT9724 Data sheet ( Hoja de datos )
| Número de pieza | RT9724 | |
| Descripción | 2A Slew Rate Controlled Load Switch | |
| Fabricantes | RichTek | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RT9724 (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
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®
RT9724
100mΩ, 2A Slew Rate Controlled Load Switch
General Description
The RT9724 is a cost-effective, low-voltage, single
N-MOSFET high-side Power Switch IC. Low switch-on
resistance (typ. 100mΩ) and low supply current (typ. 50uA)
are realized in this IC. The RT9724 integrates an over-
current protection circuit, a short fold back circuit, a
thermal shutdown circuit and an under-voltage lockout
circuit for overall protection. Besides, a slew rate
controlled function is embedded for turn-on rising time
control. The RT9724 is available in SOT-23-5 and WDFN-
8L 2x2 package.
Ordering Information
RT9724
Package Type
B : SOT-23-5
QW : WDFN-8L 2x2 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
` RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
Features
z 100mΩ (typ.) N-MOSFET Switch
z Operating Range : 2.7V to 5.5V
z Reverse Blocking Current
z Under Voltage Lockout
z Thermal Protection with Foldback
z Over Current Protection
z Short Circuit Protection
z Slew Rate Limited Turn-On Time 3ms (5V)
z RoHS Compliant and Halogen Free
Applications
z Cellular Phones
z Digital still Camera
z Hot swap Supplies
z Notebook Computers
z Personal Communication Devices
z Personal Digital Assistants
Pin Configurations
(TOP VIEW)
VIN VIN
54
Marking Information
RT9724GB
1Y=DNN
1Y= : Product Code
DNN : Date Code
RT9724GQW
GVW
GV : Product Code
W : Date Code
23
EN GND VOUT
SOT-23-5
NC 1
VOUT 2
EN 3
GND 4
8 VIN
7 VIN
6 VIN
9 5 VIN
WDFN-8L 2x2
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
DS9724-02 July 2012
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
1
1 page  
Typical Operating Characteristics
On Resistance vs. Input Voltage
115
EN = 5V, IOUT = 1.5A
114
113
112
111
110
2.7 3.1 3.4 3.7 4 4.3 4.6 4.9 5.2 5.5
Input Voltage (V)
Quiescent Current vs. Input Voltage
30 VEN = 5V, No Load
27
24
21
18
15
2.7 3.1 3.4 3.7 4 4.3 4.6 4.9 5.2 5.5
Input Voltage (V)
Shutdown Current vs. Input Voltage
0.30
VEN = 0V,No Load
0.25
0.20
0.15
0.10
0.05
0.00
2.7 3.1 3.4 3.7 4 4.3 4.6 4.9 5.2 5.5
Input Voltage (V)
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
DS9724-02 July 2012
RT9724
On Resistance vs. Temperature
150
VIN = VEN = 5V, IOUT = 1.5A
140
130
120
110
100
90
80
-40
-20
0 20 40 60
Temperature (°C)
80 100
Quiescent Current vs. Temperature
30 VIN = VEN = 5.5V, No Load
28
26
24
22
20
-40
-20
0 20 40 60
Temperature (°C)
80 100
Shutdown Current vs. Temperature
1
VIN = 5.5V, VEN = 0V, No Load
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
-40
-20
0 20 40 60
Temperature (°C)
80 100
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
5
5 Page 
Layout Consideration
For best performance of the RT9724.The following
guidelines must be followed :
` Input and Output capacitors should be placed close to
the IC and connected to ground plane to reduce noise
coupling.
` The GND shoule be connected to a strong ground plane
for heat sink.
` Keep the main current traces as possible as short and
wide.
The main current trace should be
as possible as short and wide.
VIN VIN
5 4 CIN
23
EN GND VOUT
COUT
The input and output capacitor should be
placed as close as possible to the IC.
Figure 3. PCB Layout Guide for SOT-23-5 Package
The input and output capacitor should be
placed as close as possible to the IC.
COUT
NC 1
VOUT 2
EN 3
GND 4
8 VIN
7 VIN
6 VIN
9 5 VIN
CIN
The main current trace should be
as possible as short and wide.
Figure 4. PCB Layout for WDFN Package
RT9724
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
DS9724-02 July 2012
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet RT9724.PDF ] | |
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