3-A DUAL NON-SYNCHRONOUS CONVERTER WITH INTEGRATED HIGH-SIDE MOSFET
• Qualified for Automotive Applications
AEC-Q100 Qualified With the Following
– Device Temperature Grade 2: –40°C to
+105°C Ambient Operating Temperature
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C3B
4.5-V to 28-V Input Range
Output Voltage Range 0.8 V to 90% of Input
Output Current Up to 3 A
Fixed Switching Frequency: 600 kHz
Three Selectable Levels of Overcurrent
Protection (Output 2)
0.8-V 1.5% Voltage Reference
2.1-ms Internal Soft Start
Dual PWM Outputs 180° Out-of-Phase
Ratiometric or Sequential Startup Modes
Selectable by a Single Pin
85-mΩ Internal High-Side MOSFETs
Current Mode Control
Pulse-by-Pulse Overcurrent Protection
Thermal Shutdown Protection at 148°C
14-Pin PowerPAD™ HTSSOP Package
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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.
Check for Samples:
Power for DSP
The TPS54386-Q1 are dual-output, non-synchronous
buck converters capable of supporting 3-A output
applications that operate from a 4.5-V to 28-V input
supply voltage, and require output voltages between
0.8 V and 90% of the input voltage.
With an internally-determined operating frequency,
soft-start time, and control-loop compensation, these
converters provide many features with a minimum of
protection is set at 4.5 A, whereas the channel-2
overcurrent protection level is selected by connecting
a pin to ground, to BP, or left floating. The setting
levels are used to allow for scaling of external
components for applications that do not need the full
load capability of both outputs.
The outputs may be enabled independently, or may
be configured to allow either ratiometric or sequential
start-up sequencing. Additionally, the two outputs
may be powered from different sources.
SLUSAZ9A – MARCH 2012 – REVISED MARCH 2012
Copyright © 2012, Texas Instruments Incorporated