TPS62864, TPS62866
TPS62864, TPS62866
www.ti.com
SLVSEI1C – JUNE 2019 – REVISED OCTOBER 2020
SLVSEI1C – JUNE 2019 – REVISED OCTOBER 2020
TPS62864/6 2.4-V to 5.5-V Input, 4-A and 6-A Synchronous Step-Down Converter
with I2C Interface in WCSP Package
1 Features
2 Applications
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7-mΩ and 6.5-mΩ internal power MOSFETs
>90% efficiency (0.9-V output)
DCS-control topology for fast transient response
1% output voltage accuracy
4-µA operating quiescent current
2.4-V to 5.5-V input voltage range
2.4-MHz switching frequency
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Core supply for FPGAs, CPUs, ASICs or video
chipsets
Camera modules
Solid-state drives
Optical modules
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3 Description
The TPS62864 and TPS62866 devices are high-
frequency synchronous step-down converters with I2C
interface which provide an efficient, adaptive, and
high power-density solution. At medium to heavy
loads, the converter operates in PWM mode and
automatically enters Power Save Mode operation at
light load to maintain high efficiency over the entire
load current range. The device can also be forced in
PWM mode operation for smallest output voltage
ripple. Together with its DCS-control architecture,
excellent load transient performance and tight output
voltage accuracy are achieved. Via the I2C interface
and a dedicated VID pin, the output voltage is quickly
adjusted to adapt the power consumption of the load
to the ever-changing performance needs of the
application.
Selection by external resistor
– Start-up output voltage
– I2C slave address
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Selection by I2C interface
– Power save mode or forced PWM mode
– Output discharge
– Hiccup or latching short-circuit protection
– Output voltage ramp speed
VID pin for dynamic voltage scaling (DVS)
Thermal pre-warning and thermal shutdown
Power good indicator pin option
I2C-compatible interface up to 3.4 Mbps
Available in 1.05-mm x 1.78-mm x 0.5-mm 15-pin
WCSP package with 0.35-mm pitch
Create a custom design using the TPS62866 with
the WEBENCH® Power Designer
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Device Information
PART NUMBER
TPS62864
TPS62866
PACKAGE (1)
BODY SIZE (NOM)
WCSP (15)
1.05 x 1.78 x 0.5 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
100
95
90
85
80
75
TPS6286x
VIN
2.4 V to 5.5 V
VOUT
0.9 V
L1
0.24 µH
VIN
EN
SW
C1
2x10 µF
C2
2x22 µF
VOS
VSET/VID
or
VSET/PG
SCL
SDA
I2C
R1
AGND PGND
70
VOUT = 0.6V
VOUT = 0.9V
VOUT = 1.2V
65
60
Typical Application
100m
1m
10m
Load (A)
100m
1
6
D004
Efficiency at VIN = 3.3 V
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.
Copyright © 2020 Texas Instruments Incorporated
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Product Folder Links: TPS62864 TPS62866