TPS22966 Datasheet, PDF (1/26 Pages) Texas Instruments – Dual Channel, Ultra-Low Resistance Load Switch

TPS22966
www.ti.com
SLVSBH4A – JUNE 2012 – REVISED JULY 2012
Dual Channel, Ultra-Low Resistance Load Switch
Check for Samples: TPS22966
FEATURES
1
• Integrated dual channel load switch
• Input voltage range: 0.8V to 5.5V
• Ultra low R_ON resistance
– R_ON = 18mΩ at V_IN = 5V (V_BIAS = 5V)
– R_ON = 18mΩ at V_IN = 3.6V (V_BIAS = 5V)
– R_ON = 18mΩ at V_IN = 1.8V (V_BIAS = 5V)
• 6A maximum continuous switch current per
channel
• Low quiescent current
– 80µA (both channels)
– 60µA (single channel)
• Low control input threshold enables use of
1.2-V/1.8-V/2.5-V/3.3-V logic
• Configurable rise time
• Quick Output Discharge (QOD)
• SON 14-pin package with Thermal Pad
• ESD performance tested per JESD 22
– 2KV HBM and 1KV CDM
APPLICATIONS
• Ultrabook™
• Notebooks/Netbooks
• Tablet PC
• Consumer electronics
• Set-top boxes/Residental gateways
• Telecom systems
• Solid State Drives (SSD)
DESCRIPTION
The TPS22966 is a small, ultra-low RON, dual
channel load switch with controlled turn on. The
device contains two N-channel MOSFETs that can
operate over an input voltage range of 0.8V to 5.5V
and can support a maximum continuous current of 6A
per channel. Each switch is independently controlled
by an on/off input (ON1 and ON2), which is capable
of interfacing directly with low-voltage control signals.
In TPS22966, a 220-Ω on-chip load resistor is added
for quick output discharge when switch is turned off.
The TPS22966 is available in a small, space-saving
2mm x 3mm 14-SON package (DPU) 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 85°C.
Table 1. Feature List
R_ON TYPICAL at 3.6 V (V_BIAS = 5V)
RISE TIME⁽¹⁾
QUICK OUTPUT DISCHARGE⁽²⁾
18 mΩ
Adjustable
Yes
MAXIMUM OUTPUT CURRENT (per
6A
channel)
GPIO ENABLE
Active High
OPERATING TEMP
–40°C to 85°C
(1) See Application Information section for CT value vs. rise time.
(2) This feature discharges output of the switch to GND through a
220-Ω resistor, preventing the output from floating.
Dual
Power ^CIN
Supply
or
Dual
DC/DC
converter
VIN 1
OFF
ON1
ON
VBIAS
VIN2
VOUT1
CL
CT1
CT2
VOUT2
OFF
CIN
ON2
CL
ON
TPS22966
GND
Figure 1. Typical Application
RL
GND
GND
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012, Texas Instruments Incorporated