Integrated 500 mA Load Switch
Data Sheet
FEATURES
Low input voltage range: 1.4 V to 3.6 V
Load switch
Low RDS
ON_L
of 65 mΩ at 3.6 V
500 mA continuous operating current
4 SPST normally open signal switches
RDS
ON_S
of 3 Ω at 1.8 V
Internal charge pump for constant signal switch RDS
ON
Output discharge resistance (R
DIS
): 215 Ω at the output side
of the load switch and each analog signal switch output
Built-in level shift for control logic that can operate by
a 1.2 V logic
Ultralow shutdown current: 0.7 µA
Ultrasmall 1.2 mm × 1.6 mm × 0.5 mm, 12-ball,
0.4 mm pitch WLCSP
APPLICATIONS
Mobile phones
SIM card disconnect switches
Digital cameras and audio devices
Portable and battery-powered equipment
FUNCTIONAL BLOCK DIAGRAM
Figure 1.
GENERAL DESCRIPTION
The ADP1190A is an integrated high-side load switch with four
signal switches designed for operation from 1.4 V to 3.6 V. This
load switch provides power domain isolation for extended power
battery life. The load switch is a low on-resistance P-channel
MOSFET that supports up to 500 mA of continuous load
current and minimizes power loss. Integrated with the load
switch are four normally open, 3 Ω single pole, single throw
(SPST) signal switches controlled by the charge pump.
Beyond its excellent operating performance, the ADP1190A
occupies minimal printed circuit board (PCB) space with an
area less than 1.92 mm
2
and a height of 0.50 mm. The ADP1190A
is available in an ultrasmall 1.2 mm × 1.6 mm × 0.5 mm, 12-ball,
0.4 mm pitch W L C S P.
S1
S2
S3
S4
IN
5ms
DEBOUNCE
LOAD
SWITCH
ADP1190A
CHARGE
PUMP
EN
T1
T2
T3
T4
OUT
GND
ON
OFF
11539-001
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