TPS650240_16 Datasheet, PDF (1/38 Pages) Texas Instruments – Power Management ICs for Li-Ion Powered Systems

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TPS650240, TPS650241, TPS650242
TPS650243, TPS650244, TPS650245
SLVS774C – JUNE 2007 – REVISED JANUARY 2016
TPS65024x Power Management ICs for Li-Ion Powered Systems
1 Features
•1 1.6-A, 1.0-A, or 0.8-A, 97% Efficient Step-Down
Converter for System Voltage (VDCDC1)
– 3.3 V or 2.80 V or Adjustable
• 1.6-A, 1.0-A, or 0.8-A, up to 95% Efficient Step-
Down Converter for Memory Voltage (VDCDC2)
– 1.8 V or 2.5 V or Adjustable
• 0.8-A, 90% Efficient Step-Down Converter for
Processor Core (VDCDC3)
• Two Selectable Voltages for VDCDC3
– TPS650240:
– DEFDCDC3 = LOW: V_O = 1.0 V
– DEFDCDC3 = HIGH: V_O = 1.3 V
– TPS650241:
– DEFDCDC3 = LOW: V_O = 0.9 V
– DEFDCDC3 = HIGH: V_O= 1.375 V
– TPS650242:
– DEFDCDC3 = LOW: V_O = 1.0 V
– DEFDCDC3 = HIGH: V_O = 1.5 V
– TPS650243:
– DEFDCDC3 = LOW: V_O = 1.0 V
– DEFDCDC3 = HIGH: V_O = 1.2 V
– TPS650244:
– DEFDCDC3 = LOW: V_O = 1.55 V
– DEFDCDC3 = HIGH: V_O = 1.6 V
– TPS650245:
– DEFDCDC3 = LOW: V_O = 0.9 V
– DEFDCDC3 = HIGH: V_O = 1.1 V
• 30-mA LDO for Vdd_alive
• 2 × 200-mA General-Purpose LDOs (LDO1 and
LDO2)
• Dynamic Voltage Management for Processor Core
• LDO1 and LDO2 Voltage Externally Adjustable
• Separate Enable Pins for Inductive Converters
• 2.25-MHz Switching Frequency
• 85-μA Quiescent Current
• Thermal Shutdown Protection
2 Applications
• Split-Supply DSP and μP Solutions, ARM-Based
Processors, and so on
• Cellular and Smart Phones
• GPS
• Digital Cameras
• PDA
3 Description
The TPS65024x devices are integrated power
management ICs for applications powered by one Li-
Ion or Li-Polymer cell, which require multiple power
rails. The TPS65024x provide three highly efficient,
step-down converters targeted at providing the core
voltage, peripheral, I/O, and memory rails in a
processor-based system. All three step-down
converters enter a low power mode at light load for
maximum efficiency across the widest possible range
of load currents. The converters can be forced into
fixed-frequency PWM mode by pulling the MODE pin
high.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS65024x
VQFN (32)
5.00 mm × 5.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Functional Block Diagram
Vbat
1R
1mF
Vbat
10mF
VCC
VINDCDC 1
ENABLE
EN_DCDC 1
TPS650240
DCDC1 (I/O)
STEP - DOWN
CONVERTER
1000 mA
L1
2.2 mH
VDCDC1
DEFDCDC 1
PGND 1
3.3V or 2.8V
R1
22 mF
R2
Vbat
10mF
ENABLE
Vbat
10mF
1.0V / 1.3V
ENABLE
PWM / PFM
VIN
ENABLE
VINDCDC 2
EN_DCDC 2
VINDCDC 3
DEFDCDC 3
EN_DCDC 3
MODE
VIN_LDO
EN_LDO
ENABLE
Vbat
EN_Vdd_aliv
e
VCC
R9
PWRFAIL _SNS
-
R10
+
Vref = 1 V
DCDC 2
( memory )
STEP - DOWN
CONVERTER
800 mA
DCDC 3 (core)
STEP -DOWN
CONVERTER
800 mA
L2
2.2 mH
VDCDC2
DEFDCDC 2
PGND 2
2.5V or 1.8V
R3
22 mF
R4
L3
2.2uH
VDCDC 3
PGND 3
1.0V or 1.3V
22 mF
VLDO 1
200 mA LDO
VLDO 2
200 mA LDO
VLDO 3
30 mA LDO
VLDO1
R5 2.2 mF
VLDO2
R6
R7 2.2 mF
R8
Vdd_alive
1.2 V
2.2 mF
PWRFAIL
I/O voltage
R19
AGND 1
AGND2
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.