TPS22990 Datasheet, PDF (1/34 Pages) Texas Instruments – 5.5-V, 10-A, 3.9-mΩ On-Resistance Load Switch

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TPS22990
SLVSDK1A – MAY 2016 – REVISED JULY 2016
TPS22990 5.5-V, 10-A, 3.9-mΩ On-Resistance Load Switch
1 Features
•1 Integrated Single Channel Load Switch
• VBIAS Voltage Range: 2.5 V to 5.5 V
• VIN Voltage Range: 0.6 V to V_BIAS
• On-Resistance
– R_ON = 3.9 mΩ (typical) at V_IN = 5 V
(V_BIAS = 5 V)
– R_ON = 3.9 mΩ (typical) at V_IN = 3.3 V
(V_BIAS = 3.3 V)
• 10-A Maximum Continuous Switch Current
• Quiescent Current
– I_Q,VBIAS = 63 µA at V_BIAS = 5 V
• Shutdown Current
– I_SD,VBIAS = 5.5 µA at V_BIAS = 5 V
– I_SD,VIN = 4 nA at V_BIAS = 5 V, V_IN = 5 V
• Controlled and Adjustable Slew Rate through CT
• Power Good (PG) Indicator
• Quick Output Discharge (QOD) (TPS22990 Only)
• 3-mm × 2-mm SON 10-pin Package with Thermal
Pad
• ESD Performance Tested per JESD 22
– 2-kV HBM and 1-kV CDM
2 Applications
• Notebooks, Chromebooks and Tablets
• Desktop PC and Industrial PC
• Solid State Drives (SSDs)
• Servers
• Telecom systems
3 Description
The TPS22990 product family consists of two
devices: TPS22990 and TPS22990N. Each device is
a 3.9-mΩ, single-channel load switch with a
controlled and adjustable turn on and integrated PG
indicator.
The devices contain an N-channel MOSFET that can
operate over an input voltage range of 0.6 V to 5.5 V
and can support a maximum continuous current of
10 A. The wide input voltage range and high current
capability enable the devices to be used across
multiple designs and end equipments. 3.9-mΩ On-
resistance minimizes the voltage drop across the load
switch and power loss from the load switch.
The controlled rise time for the device greatly reduces
inrush current caused by large bulk load
capacitances, thereby reducing or eliminating power
supply droop. The adjustable slew rate through CT
provides the design flexibility to trade off inrush
current and power up timing requirements. Integrated
PG indicator notifies the system about the status of
the load switch to facilitate seamless power
sequencing.
The TPS22990 has an optional 218-Ω On-chip
resistor for quick discharge of the output when switch
is disabled to avoid any unknown state caused by
floating supply to the downstream load.
The TPS22990 is available in a small, space-saving
3-mm × 2-mm 10-SON package with integrated
thermal pad allowing for high power dissipation. The
device is characterized for operation over the free-air
temperature range of –40°C to +105°C.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS22990
TPS22990N
WSON (10)
3.00 mm × 2.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Power Supply
Typical Application
CT
CIN
ON
OFF
VOUT
CT
VOUT
NC
VOUT
CL
VIN
VOUT
RPU
RL
VBIAS
PG
ON
GND
TPS22990
Copyright © 2016, Texas Instruments Incorporated
1
On-Resistance vs Input Voltage
5.5
-40°C
5.25
25°C
5
85°C
105°C
4.75
4.5
4.25
4
3.75
3.5
3.25
3
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
Input Voltage (V)
D008
V_BIAS = 5 V, I_OUT = –200 mA
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.