TPS65050-Q1 Datasheet, PDF (1/40 Pages) Texas Instruments – 6-CHANNEL POWER MGMT IC WITH TWO STEP-DOWN CONVERTERS AND 4 LOW-INPUT-VOLTAGE LDOs

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TPS65050-Q1, TPS65051-Q1, TPS65052-Q1
TPS65054-Q1, TPS65056-Q1
SLVSBJ1A – SEPTEMBER 2012 – REVISED NOVEMBER 2012
6-CHANNEL POWER MGMT IC WITH TWO STEP-DOWN CONVERTERS
AND 4 LOW-INPUT-VOLTAGE LDOs
, TPS65051-Q1
FEATURES
1
•2 Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following
Results:
– Device Temperature Grade 1: –40°C to
125°C Ambient Operating Temperature
Range
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C3B
• Two General-Purpose 200-mA, High-PSRR
LDOs
• V_I Range for LDOs from 1.5 V to 6.5 V
• Digital Voltage Selection for the LDOs
• Available in a 4-mm × 4-mm 32-Pin QFN
Package
APPLICATIONS
Automotive
• Up To 95% Efficiency
• Output Current for DC-DC Converters:
– TPS65050-Q1: 2 × 0.6 A
– TPS65051-Q1: DCDC1 = 1 A; DCDC2 = 0.6 A
– TPS65052-Q1: DCDC1 = 1 A; DCDC2 = 0.6 A
– TPS65054-Q1: 2 × 0.6 A
– TPS65056-Q1: DCDC1 = 1 A; DCDC2 = 0.6 A
• Output Voltages for DC-DC Converters:
– TPS65050-Q1: Externally Adjustable
– TPS65051-Q1: Externally Adjustable
– TPS65052-Q1: DCDC1 = Fixed at 3.3 V;
DCDC2 = 1 V or 1.3 V for Samsung
Application Processors
– TPS65054-Q1: DCDC1 = Externally
Adjustable; DCDC2 = 1.3 V or 1.05 V for
OMAP™1710 Processor
– TPS65056-Q1: DCDC1 = Fixed at 3.3 V;
DCDC2 = 1 V or 1.3 V for Samsung
Application Processors
• V_I Range for DC-DC Converters
From 2.5 V to 6 V
• 2.25-MHz Fixed-Frequency Operation
• Power-Save Mode at Light Load Current
• 180° Out-of-Phase Operation
• Output-Voltage Accuracy in PWM Mode ±1%
• Low-Ripple PFM Mode
• Total Typical 32-μA Quiescent Current for Both
DC-DC Converters
• 100% Duty Cycle for Lowest Dropout
• Two General-Purpose 400-mA, High-PSRR
LDOs
DESCRIPTION
The TPS6505x-Q1 devices are integrated power-
management ICs for applications powered by one Li-
Ion or Li-Polymer cell, which require multiple power
rails. The TPS6505x-Q1 provides two efficient, 2.25-
MHz step-down converters targeted at providing the
core voltage and I/O voltage in a processor-based
system. Both step-down converters enter a low-power
mode at light load for maximum efficiency across the
widest possible range of load currents.
For low-noise applications, the user can force the
devices into fixed-frequency PWM mode by pulling
the MODE pin high. Operating in the shutdown mode
reduces the current consumption to less than 1 μA.
The devices allow the use of small inductors and
capacitors to achieve a small solution size. The
TPS6505x-Q1 provides an output current of up to 1 A
on each dc-dc converter. The TPS6505x-Q1 also
integrates two 400-mA LDO and two 200-mA LDO
voltage regulators, which one can turn on or off using
separate enable pins on each LDO. Each LDO
operates with an input voltage range between 1.5 V
and 6.5 V, allowing their supply to be from one of the
step-down converters or directly from the main
battery.
Four digital input pins set the output voltage of the
LDOs from a set of 16 different combinations for
LDO1 to LDO4 on TPS65050-Q1 and TPS65052-Q1.
In TPS65051-Q1, TPS65054-Q1, and TPS65056-Q1,
the LDO voltages are adjustable using external
resistor dividers.
The TPS6505x-Q1 devices come in a small 32-pin
leadless package (4-mm × 4-mm QFN) with a 0.4-
mm pitch.
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.
OMAP 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 © 2012, Texas Instruments Incorporated