TPS62110-HT Datasheet, PDF (1/25 Pages) Texas Instruments – 17-V, 1.5-A, SYNCHRONOUS STEP-DOWN CONVERTER

TPS62110-HT
www.ti.com
SLVSAO9B – DECEMBER 2010 – REVISED FEBRUARY 2011
17-V, 1.5-A, SYNCHRONOUS STEP-DOWN CONVERTER
Check for Samples: TPS62110-HT
FEATURES
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• High-Efficiency Synchronous Step-Down
Converter With up to 95% Efficiency
• 3.1-V to 17-V Operating Input Voltage Range
• Adjustable Output Voltage Range From
1.2 V to 16 V
• Synchronizable to External Clock Signal up to
1.4 MHz
• Up to 1.5-A Output Peak Current ⁽¹⁾
• 32-µA Quiescent Current (Typ)
• High Efficiency Over a Wide Load Current
Range Due to PFM/PWM Operation Mode
• 100% Maximum Duty Cycle for Lowest
Dropout
• Overtemperature and Overcurrent Protected
• Available in 16-Pin (PWP) QFP Package
SUPPORTS EXTREME TEMPERATURE
APPLICATIONS
• Controlled Baseline
• One Assembly/Test Site
• One Fabrication Site
• Available in Extreme (–55°C/175°C)
Temperature Range⁽²⁾
• Extended Product Life Cycle
• Extended Product-Change Notification
• Product Traceability
• Texas Instruments high temperature products
utilize highly optimized silicon (die) solutions
with design and process enhancements to
maximize performance over extended
temperatures.
TYPICAL APPLICATION
APPLICATIONS
• Down-Hole Drilling
• High Temperature Environments
V_I = 3.8 V to 17 V
C_I = 10 mF
25 V
1 mF
TPS62110
VIN
VIN
EN
VINA
AGND
LBI
SYNC
SW
SW
PG
LBO
FB
GND GND PwPD PGND PGND
6.8 mH
1 MW
V_O = 3.3 V
C_O = 22 mF
6.3 V
(1) Reduce life time may happen when 1.5-A limit is used for long
time. Please refer to the EM calculations graph.
(2) Custom temperature ranges available
DESCRIPTION/ORDERING INFORMATION
The TPS62110 is a low-noise synchronous step-down dc-dc converter that is ideally suited for systems powered
from a 2-cell Li-ion battery or from a 12-V or 15-V rail.
The TPS62110 is a synchronous PWM converter with integrated N-channel and P-channel power MOSFET
switches. Synchronous rectification is used to increase efficiency and to reduce external component count. To
achieve highest efficiency over a wide load current range, the converter enters a power-saving, pulse-frequency
modulation (PFM) mode at light load currents. Operating frequency is typically 1 MHz, allowing the use of small
inductor and capacitor values. The device can be synchronized to an external clock signal in the range of 0.8
MHz to 1.4 MHz. For low noise operation, the converter can be operated in PWM-only mode. In the shutdown
mode, the current consumption is reduced to less than 2 μA. The TPS62110 is available in the 16-pin (PWP)
QFP package, and operates over a free-air temperature range of –55°C to 175°C.
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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.
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