TPS65053-Q1 Datasheet, PDF (1/26 Pages) Texas Instruments – 5-CHANNEL POWER MGMT IC WITH TWO STEP DOWN CONVERTERS AND 3 LOW-INPUT VOLTAGE LDOs

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TPS65053-Q1
TPS650531-Q1
TPS650532-Q1
SLVSAW1 – JUNE 2011
5-CHANNEL POWER MGMT IC WITH TWO STEP DOWN CONVERTERS
AND 3 LOW-INPUT VOLTAGE LDOs
Check for Samples: TPS65053-Q1, TPS650531-Q1 , TPS650532-Q1
FEATURES
1
•2 Qualified for Automotive Applications
• Up To 95% Efficiency
• Output Current for DC/DC Converters:
– TPS65053-Q1 : DCDC1 = 1 A;
DCDC2 = 0.6 A
– TPS650531-Q1 : DCDC1 = 1 A; DCDC2 = 1 A
– TPS650532-Q1: DCDC1 = 1 A; DCDC2 = 1 A
• DC/DC Converters Externally Adjustable
• V_IN 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%
• Total Typical 32-μA Quiescent Current for Both
DC/DC Converters
• 100% Duty Cycle for Lowest Dropout
• One General-Purpose 400-mA LDO
• Two General-Purpose 200-mA LDOs
• V_IN Range for LDOs from 1.5 V to 6.5 V
• Output Voltage for LDO3:
– TPS65053-Q1 : VLDO3 = 1.3 V
– TPS650531-Q1 : VLDO3 = 1.2 V
– TPS650532-Q1: VLDO3 = 1.5 V
• Available in a 4 mm x 4 mm 24-Pin QFN
Package
DESCRIPTION
The TPS65053x are integrated Power Management ICs for applications powered by one Li-Ion or Li-Polymer
cell, which require multiple power rails. The TPS65053x provide two highly efficient, 2.25MHz 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 devices can be forced into fixed frequency PWM mode by pulling the
MODE pin high. Both converters allow the use of small inductors and capacitors to achieve a small solution size.
TPS65053-Q1 provides an output current of up to 1A on the DCDC1 converter and up to 0.6A on the DCDC2
converter. TPS650531-Q1 and TPS650532-Q1 provide up to 1A on both DCDC1 and DCDC2. The TPS65053x
also integrate one 400mA LDO and two 200mA LDO voltage regulators, which can be turned on/off using
separate enable pins on each LDO. Each LDO operates with an input voltage range between 1.5V and 6.5V
allowing them to be supplied from one of the step-down converters or directly from the main battery. LDO1 and
LDO2 are externally adjustable while LDO3 has a fixed output voltage of 1.3V on TPS65053-Q1 , 1.2V on
TPS650531-Q1 and 1.5V on TPS650532-Q1.
The TPS65053x come in a small 24-pin leadless package (4mm × 4mm QFN) with a 0,5mm pitch.
ORDERING INFORMATION⁽¹⁾
T_A
–40°C to 85°C
PACKAGE
QFN - RGE
OUTPUT VOLTAGE ON
LDO3
1.3V
1.2V
1.5V
ORDERABLE
PART NUMBER
TPS65053IRGERQ1
TPS650531IRGERQ1
TPS650532IRGERQ1
TOP-SIDE
MARKING
65053Q
PREVIEW
PREVIEW
(1) For the most current package and ordering information, see the Package Option Addendum at the end
of this document, or see the TI web site at www.ti.com.
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 © 2011, Texas Instruments Incorporated