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