TPS22971 Datasheet PDF


Part Number

TPS22971

Description

On-Resistance Load Switch

Manufacture

etcTI

Total Page 28 Pages
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Download TPS22971 Datasheet PDF


Features Datasheet pdf Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity TPS22971 SLVSDK7B – APRIL 201 7 – REVISED DECEMBER 2017 TPS22971 3. 6-V, 3-A, 6.7-mΩ On-Resistance Load Sw itch With Adjustable Fast Turn-ON and P ower Good 1 Features •1 Input Voltag e Range (VIN): 0.65 V to 3.6 V • On-R esistance – RON = 6.7 mΩ (typical) a t VIN ≥ 1.8 V – RON = 7.2 mΩ (typi cal) at VIN = 1.05 V – RON = 8.9 mΩ (typical) at VIN = 0.65 V • Maximum C ontinuous Switch Current (IMAX): 3 A ON State (IQ): 30 µA (typical) at 3. 6 VIN • OFF State (ISD): 1 µA (typic al) at 3.6 VIN • Adjustable Slew Rate through CT Pin – Fast Turn-ON ≤ 65 µs at VIN = 1 V • Power Good (PG) Indicator After Switch Turn ON • Lo.
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TPS22971 Datasheet
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TPS22971
SLVSDK7B – APRIL 2017 – REVISED DECEMBER 2017
TPS22971 3.6-V, 3-A, 6.7-mΩ On-Resistance Load Switch With Adjustable Fast Turn-ON
and Power Good
1 Features
1 Input Voltage Range (VIN): 0.65 V to 3.6 V
• On-Resistance
– RON = 6.7 mΩ (typical) at VIN 1.8 V
– RON = 7.2 mΩ (typical) at VIN = 1.05 V
– RON = 8.9 mΩ (typical) at VIN = 0.65 V
• Maximum Continuous Switch Current (IMAX): 3 A
• ON State (IQ): 30 µA (typical) at 3.6 VIN
• OFF State (ISD): 1 µA (typical) at 3.6 VIN
• Adjustable Slew Rate through CT Pin
– Fast Turn-ON 65 µs at VIN = 1 V
• Power Good (PG) Indicator After Switch Turn ON
• Low Threshold Enable (ON) of 0.9 V (VIH)
supports use of low voltage control logic
• Thermal Shutdown (TSD)
• Quick Output Discharge (QOD): 150-Ω (typical)
2 Applications
• Notebook, Tablet
• Industrial PC
• Smartphones
• Telecom
• Storage
3 Description
The TPS22971 is a space-saving single-channel load
switch with controlled and adjustable Turn-ON slew
rate and an integrated Power Good indicator. The
device contains an N-channel MOSFET that can
operate over a low input voltage range of 0.65 V to
3.6 V and can support a maximum continuous current
of 3 A. A low on-resistance of 6.7-mΩ minimizes the
power loss and voltage drop across the load switch.
The switch is controlled by an on and off input (ON),
which is capable of interfacing directly with low-
voltage control signals.
By default, the TPS22971 has a Fast Turn-ON time to
minimize system startup and wait time. The
Adjustable Slew Rate can also be reduced to limit
inrush current. A Power Good (PG) signal internally
monitors the gate threshold and indicates when the
switch is fully on. When the switch is disabled, a 150-
Ω on-chip resistor quickly discharges the output to
ground and keeps it from floating.
The TPS22971 is available in an ultra-small, space
saving 8-pin WCSP package and is characterized for
operation over the free-air temperature range of
–40°C to 105°C and integrates thermal shutdown to
turn off in case of overheating.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS22971
DSBGA (8)
1.90 mm × 0.90 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application
Power Supply
CIN
CT
ON
OFF
VIN VOUT
VIN VOUT
CT PG
ON GND
TPS22971
RPU
PG
CL
RL
Copyright © 2017, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.




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