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PDF NCP433 Data sheet ( Hoja de datos )
| Número de pieza | NCP433 | |
| Descripción | 1.5A Ultra-Small Controlled Load Switch | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de NCP433 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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NCP432, NCP433
1.5A Ultra-Small Controlled
Load Switch with
Auto-Discharge Path
The NCP432 and NCP433 are a low Ron MOSFET controlled by
external logic pin, allowing optimization of battery life, and portable
device autonomy.
Indeed, due to a current consumption optimization with PMOS
structure, leakage currents are eliminated by isolating connected IC’s
on the battery when not used.
Output discharge path is also embedded to eliminate residual
voltages on the output (NCP433 only).
Proposed in wide input voltage range from 1.0 V to 3.6 V, and a very
small 0.76 x 0.76 mm WLCSP4, 0.4 mm pitch.
Features
• 1 V – 3.6 V Operating Range
• 50 mW P MOSFET at 1.8 V
• DC Current up to 1.5 A
• Output Auto−discharge (NCP433)
• Active High EN Pin
• WLCSP4 0.76 x 0.76 mm
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Typical Applications
• Mobile Phones
• Tablets
• Digital Cameras
• GPS
• Portable Devices
V+
LS
http://onsemi.com
MARKING
DIAGRAM
WLCSP4
CASE 567FJ
XX = AV or AT
PINOUT
12
XX
A OUT
IN
B GND
EN
(Top View)
ORDERING AND MARKING INFORMATION
See detailed ordering and shipping information on page 6 of
this data sheet.
DCDC Converter
or
LDO
NCP433
A2 IN OUT A1
B2 EN GND B1
Platform IC’n
ENx EN
0
Figure 1. Typical Application Circuit
© Semiconductor Components Industries, LLC, 2013
December, 2013 − Rev. 1
1
Publication Order Number:
NCP432/D
1 page  
NCP432, NCP433
TYPICAL CHARACTERISTICS
160
Temp = −40°C
140 Temp = 25°C
120 Temp = 85°C
100
80
60
40
20
0
01 2 3 4
VIN (V)
Figure 4. Standby Current versus Temperature
300
ILOAD = 100 mA
250
200
150
100
50
0
01 2 3
VIN (V)
Figure 6. RDS(on) versus VIN, 255C, 100 mA
Load
4
1.2
Temp = −40°C
1.0
Temp = 25°C
Temp = 85°C
0.8
0.6
0.4
0.2
0
01
23
VIN (V)
Figure 5. Quiescent Current versus
Temperature
4
350
ILOAD = 100 mA
300
250
−40°C
0°C
50°C
−25°C
25°C
85°C
200
150
100
50
0
01
2 34
VIN (V)
Figure 7. RDS(on) versus Temperature, 100 mA
Load
FUNCTIONAL DESCRIPTION
Overview
The NCP432 – NCP433 are high side P channel MOSFET
power distribution switch designed to isolate ICs connected
on the battery in order to save energy. The part can be turned
on, with a range of battery from 1.0 V to 3.6 V.
Enable Input
Enable pin is an active high. The path is opened when EN
pin is tied low (disable), forcing P MOS switch off.
The IN/OUT path is activated with a minimum of Vin of
1.0 V and EN forced to high level.
The auto−discharge is activated when EN pin is set to low
level (disable state).
The discharge path ( Pull down NMOS) stays activated as
long as EN pin is set at low level and VIN > 1.0 V.
In order to limit the current across the internal discharge
N−MOSFET, the typical value is set at 65 W.
Cin and Cout Capacitors
IN and OUT, 1 mF, at least, capacitors must be placed as
close as possible the part for stability improvement.
Auto Discharge (NCP433 only)
NMOS FET is placed between the output pin and GND,
in order to discharge the application capacitor connected on
OUT pin.
http://onsemi.com
5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet NCP433.PDF ] | |
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