SIP4282 Datasheet, PDF (1/9 Pages) Vishay Siliconix – 1 A Slew Rate Controlled Load Switch in PPAK SC75-6

New Product
SiP4282
Vishay Siliconix
1 A Slew Rate Controlled Load Switch in PPAK SC75-6
DESCRIPTION
The SiP4282 is a P-Channel MOSFET power switch IC
designed for high-side load switching applications. The out-
put switching transistor is a P-Channel MOSFET device that
has a 140 mΩ R_DS(ON) typically to increase load switching
power handling capacity. The SiP4282 is available in two dif-
ferent versions with turn-on and turn-off characteristics rang-
ing from very fast to slew rate limited. In addition to a fast
turn-off time of 4 µs, the SiP4282-3 version offers a shut-
down load discharge circuit to instantaneously turn off a load
circuit when the switch is disabled.
The SiP4282 load switch operates with an input voltage
ranging from 1.8 V to 5.5 V, making it ideal for both 3 V and
5 V systems. The SiP4282 also features an under-voltage
lock out which turns the switch off when an input undervolt-
age condition exists. Input logic levels are TTL and 2.5 V to
5 V CMOS compatible. This device has a very low operating
current (typically 2.5 µA), making it ideal for battery-powered
applications. In shutdown mode, the supply current
decreases to less than 1 µA.
The SiP4282 is available in a lead (Pb)-free 6 pin PPAK
SC75-6 package and is specified over - 40 °C to 85 °C tem-
perature range.
FEATURES
• 1.8 V to 5.5 V Input Voltage range
• Very Low R_DS(ON), typically 140 mΩ
at 5 V and 175 mΩ at 3 V
• Slew rate limited turn-on time options
- SiP4282-1: 1 ms
- SiP4282-3: 100 µs
• Fast shutdown load discharge option
• Low quiescent current, typically 2.5 µA
• Low Shutdown Current < 1 µA
• TTL/CMOS input logic level
• UVLO of 1.4 V
• SC-75 Package
APPLICATIONS
• Cellular telephones
• Digital still cameras
• Personal digital assistants (PDA)
• Hot swap supplies
• Notebook computers
• Personal communication devices
• USB
TYPICAL APPLICATION CIRCUIT
V_IN
C _IN
1 µF
GND
1 ^VIN
2 ^VIN
SiP4282
ON/OFF
4
ON/OFF
GND
3
OUT ₆
OUT
5
SiP4282 Typical Application Circuit
V_OUT
C _OUT
0.1 µF
GND
Document Number: 73851
S-70069–Rev. C, 22-Jan-07
www.vishay.com
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