TPS62110-EP_16 Datasheet, PDF (1/25 Pages) Texas Instruments – 17 V, 1.5 A, SYNCHRONOUS STEP-DOWN CONVERTER

TPS62110-EP
TPS62111-EP
TPS62112-EP
www.ti.com .............................................................................................................................................................. SLVS630C – APRIL 2007 – REVISED MAY 2008
17 V, 1.5 A, SYNCHRONOUS STEP-DOWN CONVERTER
FEATURES
1
•2 Controlled Baseline
– One Assembly
– One Test Site
– One Fabrication Site
• Extended Temperature Performance of –55°C
to 125°C
• Enhanced Diminishing Manufacturing Sources
(DMS) Support
• Enhanced Product-Change Notification
• Qualification Pedigree
• 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
• Fixed Output Voltage Options Available in
3.3 V and 5 V
• Synchronizable to External Clock Signal up to
1.4 MHz
• Up to 1.5 A Output Current
• High Efficiency Over a Wide Load Current
Range Due to PFM/PWM Operation Mode
• 100% Maximum Duty Cycle for Lowest Dropout
Component qualification in accordance with JEDEC and industry
standards to ensure reliable operation over an extended
temperature range. This includes, but is not limited to, Highly
Accelerated Stress Test (HAST) or biased 85/85, temperature
cycle, autoclave or unbiased HAST, electromigration, bond
intermetallic life, and mold compound life. Such qualification testing
should not be viewed as justifying use of this component beyond
specifiedperformance and environmental limits.
• 20 µA Quiescent Current (Typical)
• Overtemperature and Overcurrent Protected
• Available in 16 Pin QFN Package
APPLICATIONS
• Point-of-Load Regulation From 12 V Bus
• Organizers, PDAs, and Handheld PCs
• Handheld Scanners
TYPICAL APPLICATION
V_I = 3.8 V to 17 V
C_I = 10 mF
25 V
1 mF
TPS62111
VIN
VIN
EN
VINA
AGND
LBI
SW
SW
PG
LBO
FB
SYNC
GND GND PwPD PGND PGND
6.8 mH
1M
V_O = 3.3 V
C_O = 22 mF
6.3 V
DESCRIPTION/ORDERING INFORMATION
The TPS6211x devices are a family of low-noise synchronous step-down dc-dc converters that are ideally suited
for systems powered from a 2-cell Li-ion battery or from a 12 V or 15 V rail.
The TPS6211x 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 TPS6211x is available in the 16 pin (RSA)
QFN package, and operates over a free-air temperature range of –55°C to 125°C.
1
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.
PowerPAD is a trademark of Texas Instruments.
2
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.
Copyright © 2007–2008, Texas Instruments Incorporated