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Load (A)
Efficiency (%)
60
70
80
90
100
1m 10m 100m 1 5
D003
V
IN
= 2.7 V
V
IN
= 3.3 V
V
IN
= 4.2 V
V
IN
= 5.0 V
V
2.5V to 6.0V
IN
POWER GOOD
C2
22µF
R3
100k
V
1.8V/2A
OUT
L1
1.0µH
C1
10µF
C3
10nF
V
IN
TPS6209718
PVIN
EN
AVIN
SS/TR
AGND
MODE
SW
FB
VOS
PG
PGND
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TPS62097
SLVSCD6 –DECEMBER 2015
TPS62097 2-A High Efficiency Step-Down Converter with iDCS-Control, Forced PWM
Mode and Selective Switching Frequency
1 Features 3 Description
The TPS62097 device is a synchronous step-down
1
• iDCS-Control Topology
converter optimized for high efficiency and noise
• Forced PWM or Power Save Mode
critical applications. The devices focus on high
• Up to 97% Efficiency
efficiency conversion over a wide output current
range. At medium to heavy loads, the converter
• 2.5-V to 6.0-V Input Voltage
operates in PWM mode and automatically enters
• 0.8-V to V
IN
Adjustable Output Voltage
Power Save Mode operation at light load. The
• 1.8-V and 3.3-V Fixed Output Voltage
switching frequency is selectable in the range of 1.5
MHz to 2.5 MHz by an external resistor. iDCS-Control
• ±1% Output Voltage Accuracy
is able to be operated in forced PWM mode for low
• Hiccup Short Circuit Protection
noise operation with a fixed switching frequency.
• Programmable Soft Startup
To address the requirements of system power rails,
• Output Voltage Tracking
the internal compensation circuit allows a large
• Selectable Switching Frequency
selection of external output capacitor values in
• 100% Duty Cycle for Lowest Dropout
excess of 150 µF. To control the inrush current during
the startup, the device provides a programmable soft
• Output Discharge
startup by an external capacitor connected to the
• Power Good Output
SS/TR pin. The SS/TR pin is also used in voltage
• Thermal Shutdown Protection
tracking configurations. The device integrates short
circuit protection, power good and thermal shutdown
• -40°C to 125°C Operating Junction Temperature
features. The device is available in a 2-mm x 2-mm
• Available in 2-mm x 2-mm VQFN Package
VQFN package.
2 Applications
Device Information
(1)
• Industrial Applications
PART NUMBER PACKAGE BODY SIZE (NOM)
• Programmable Logic Controllers (PLCs)
TPS62097
TPS6209718 VQFN (11) 2.0 mm x 2.0 mm
• Point of Load (POL) Regulators
TPS6209733
• Solid State Drives (SSDs)
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
1.8-V Output, PWM/PSM Mode Application 1.8-V Output, PWM/PSM Mode Efficiency
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.
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