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TPS62136, TPS621361
SLVSDV2 –MARCH 2017
TPS62136, TPS621361 1-MHz High Accuracy 3-V to 17-V 4-A Step-Down Converters with
DCS ControlTM
1 Features
3 Description
The TPS62136 and TPS621361 are high efficiency
and easy to use synchronous step-down DC-DC
converters, based on the DCS-Control™ Topology.
The devices wide input voltage range of 3-V to 17-V
makes it suitable for multi-cell Li-Ion as well as 12-V
intermediate supply rails. The devices provide 4-A
1
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•
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•
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Output Voltage Accuracy ± 1% (PWM mode)
Input Voltage Range: 3 V to 17 V
Quiescent Current 18 µA Typ
Output Voltage from 0.8 V to 12 V
Adjustable Soft-Start
continuous
output
current.
The
TPS62136
Forced PWM or PWM/PFM operation
automatically enters Power Save Mode at light loads
to maintain high efficiency across the whole load
range. With that, the device is well suited for
applications that require connected standby
performance, like ultra low power computers. With the
MODE pin set to low, the switching frequency of the
device is adapted automatically based on the input
and output voltage. This technique is called
Automatic Efficiency Enhancement (AEE™) and
maintains high conversion efficiency over the whole
operation range. It provides a 1% output voltage
accuracy in PWM mode and therefore enables the
design of a power supply with high output voltage
accuracy.
Typical switching frequency of 1 MHz in forced
PWM
•
Precise ENABLE input allows
–
–
User-Defined Undervoltage Lockout
Exact Sequencing
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100% Duty Cycle Mode
Automatic Efficiency Enhancement AEE™
DCS-Control™ Topology
Available with Active Output Discharge
Optional HICCUP Overcurrent Protection
Power Good Output
The device has a typical quiescent current of 18 µA.
In shutdown mode the current is typically 1 µA and
the output is actively discharged for TPS62136 while
the output voltage discharge feature is disabled in
TPS621361.
Available in 3-mm x 2-mm VQFN Package
2 Applications
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Standard 12-V Rail Supplies
POL for Connected Standby Requirements
POL Supply from Single or Multiple Li-Ion Battery
Gaming Consoles, SSD Drives
The TPS62136 is available as an adjustable version,
packaged in a 3-mm x 2-mm VQFN package.
Device Information(1)
Mobile and Embedded Computers
PART NUMBER
TPS62136
PACKAGE
VQFN
VQFN
BODY SIZE (NOM)
3.00 mm x 2.00 mm
3.00 mm x 2.00 mm
TPS621361
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
space
Simplified Schematic
TPS62136
1.5 uH
Efficiency vs Output Current for Vo = 5 V
100
VBAT = 3.0V to 17V
10uF
VOUT = 0.8V to 12V
VIN
EN
SW
90
VOS
80
R
1
47uF
FB
70
R
2
60
PG
FB2
VSEL
MODE
SS/TR
50
VIN = 6 V
VIN = 8 V
VIN = 10 V
VIN = 12 V
VIN = 15 V
40
30
20
GND
Copyright © 2016, Texas Instruments Incorporated
10m
100m
1m
10m
100m
1
4
Output Current (A)
D010
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.