General description
NPS1000 is a low voltage, single-channel load switch
with a low RDS,ON (11 mΩ) to minimize IR drop and
power loss. It supports up to 0.6 A RMS current and a
peak current of 1.5 A.
The switch is controlled by an EN input which is
compatible with 1.2 V logic levels. When the load
switch is enabled, the internal switch charges the
output capacitor with a controlled inrush current.
When the switch is disabled, an 8 Ω on-chip resistor
discharges the output to ground and keeps it from
floating.
The IC is powered from a separate BIAS pin which is
rated for 2.3 V to 5.0 V operation.
NPS1000 has an over-temperature protection that
latches the device OFF when the internal junction
temperature is above the set point (Tth(OTLO)). At this
time, the internal switch is turned off and the output
discharge element turns on to discharge the output
capacitor. The load switch can be enabled again by
toggling the EN pin.
NPS1000 is available in an ultra-small, space
saving, wafer level chip-scale package; 8 bumps;
1.42 mm × 0.72 mm × 0.465 mm body and is
characterized for operation over junction temperature
range of –40 °C to 105 °C.

Features and benefits
• 0.5 V – 1.0 V operation voltage
• Low RDS,ON: 11 mΩ typical at 25 °C, 16 mΩ
(maximum) at 85 °C
• Enable logic supports 1.2 V logic levels
• 0.6 A RMS and 1.5 A peak current capability
• Controlled start-up
• <200 µs from enable to full enhancement of
power FET
• Output short tolerant
• When supplied by a 4.5 A current limited power
supply
• Over-temperature shutdown and input UVLO
protection
• 8 Ω discharge while disabled
• Small package footprint
• ESD protection:
• HBM: ANSI/ESDA/JEDEC JS-001 class 2
exceeds 2000 V
• CDM: ANSI/ESDA/JEDEC JS-002 class C2a
exceeds 500 V
• Specified from TJ
= -40 °C to +105 °C

Applications
• Mobile phones
• Wearables