TPS65000-Q1_15 Datasheet, PDF (1/29 Pages) Texas Instruments – 2.25-MHz Step-Down Converter

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TPS65000-Q1
SLVSC45B – AUGUST 2013 – REVISED SEPTEMBER 2015
TPS65000-Q1 2.25-MHz Step-Down Converter With Dual LDOs and SVS
1 Features
•1 Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
– Device Temperature Grade 2:
–40°C to +105°C Ambient Operating
Temperature Range
– Device HBM ESD Classification Level H2
– Device CDM ESD Classification Level C4B
• Step-Down Converters:
– V_IN Range From 2.3 V to 6 V
– Spread-Spectrum Clock (SSC) Generation for
Reduced EMI
– 2.25-MHz Fixed-Frequency Operation
– 600-mA Output Current
• LDOs:
– V_IN Range From 1.6 V to 6 V
– Adjustable Output Voltage
– Up to 300-mA Output Current
– Separate Power Inputs and Enables
• 3-mm × 3-mm 16-Pin QFN
2 Applications
• Automotive
• Point-of-Load
• Embedded Processor Power
• Cell Phones, Smart Phones
• PDAs, Pocket PCs
• Portable Media Players
3 Description
The TPS65000-Q1 device is a single-chip power-
management IC for portable applications. This device
combines a single step-down converter with two low-
dropout regulators. The step-down converter enters a
low-power mode at light load for maximum efficiency
across the widest possible range of load currents. For
low-noise applications, the device can be forced into
fixed-frequency PWM through a pin. The step-down
converter allows the use of a small inductor and
capacitors to achieve a small solution size. The step-
down converter has a power-good status output that
can be used for sequencing. The LDOs can supply
300 mA, and can operate with an input voltage range
from 1.6 V tp 6 V, thus allowing them to be supplied
from the step-down converter or directly from the
main battery. The step-down converter and the LDOs
have separate voltage inputs and enables, thus
allowing for design and sequencing flexibility.
The TPS65000-Q1 is available in a 16-pin leadless
package (3-mm × 3-mm QFN).
Device Information⁽¹⁾
PART NUMBER PACKAGE
BODY SIZE (NOM)
TPS65000-Q1
WQFN (16)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Schematic
TPS65000-Q1
Oscillator
SSCG
EN_DCDC
2.2mH
V_IN
VINDCDC
Step-Down
600mA
SW
FB_DCDC
680W
10mF
VDCDC
3.3V
10mF
P
A
MODE
P
V_IN
PG
150kW
A
22pF
470kW
PG
VDCDC
1
EN_LDO1
VINLDO1
EN_LDO2
VINLDO2
AGND
A
LDO1
300mA
LDO2
300mA
VLDO1
FB_LDO1
VLDO2
FB_LDO2
PGND
Bandgap Reference
470kW
180kW
A
820kW
180kW
P
A
10mF
P
10mF
P
TPS65000-Q1 Function/Pin
VLDO1
1.8V
VLDO2
2.8V
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.