TPS65000_15 Datasheet, PDF (1/40 Pages) Texas Instruments – Step-Down Converter

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TPS65000, TPS65001, TPS650001
TPS650003, TPS650006, TPS650061
SLVS810C – JUNE 2009 – REVISED SEPTEMBER 2015
TPS6500xx 2.25-MHz Step-Down Converter With Dual Low Dropouts and Supply Voltage
Supervisor
1 Features
•1 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 or 1-A (TPS650061) Output Current
• Low Dropouts (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
• Supply Voltage Supervisor (TPS65001)
– Manual Reset Input for Push Button
– Adjustable Reset Time
– Adjustable Reset Voltage
• 3-mm × 3-mm 16-Pin WQFN (TPS65000)
• 3-mm × 3-mm 20-Pin WQFN (TPS65001)
2 Applications
• Points-of-Load
• Embedded Processor Power
• Cell Phones
• Smart Phones
• PDAs
• Pocket PCs
• Portable Media Players
3 Description
The TPS6500xx devices are single-chip power
management (PWM) ICs for portable applications.
Both devices combine a single step-down converter
with two low-dropout (LDO) 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
devices can be forced into fixed-frequency PWM
through a pin. The step-down converter is small
because of its small inductor and capacitors. The
step-down converter has power good status output
for sequencing. The LDOs can supply 300 mA and
operate with an input voltage range from 1.6 V to 6 V.
A step-down converter or main battery can power the
LDOs directly. The step-down converter and the
LDOs have separate voltage inputs that enable
maximum design and sequencing flexibility.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS65000,
TPS650001,
TPS650003,
TPS650006
WQFN (16)
3.00 mm × 3.00 mm
TPS65001,
TPS650061
WQFN (20)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Application Circuit
TPS65000/1
Oscillator
SSCG
V_IN
475kW
V_IN
232kW
A
VDCDC
10mF
A
P
0.1mF
470kW
A
V_IN
100nF
AA
EN_DCDC
VINDCDC
MODE
RSTSNS
MR
TRST
EN_LDO1
VINLDO1
EN_LDO2
VINLDO2
AGND
A
Step-Down
600mA
SW
FB_DCDC
Supply
Voltage
Supervisor
LDO1
300mA
LDO2
300mA
PG
RST
VLDO1
FB_LDO1
VLDO2
FB_LDO2
PGND
Bandgap Reference
2.2mH
680W
150kW
A
22pF
470kW
180kW
A
820kW
180kW
P
A
10mF
P
470kW
10mF
P
10mF
P
VDCDC
3.3V
V_IN
100kW
PG
RST
VLDO1
1.8V
VLDO2
2.8V
TPS65000/01 Joint Function/Pin
TPS65001 Only Function/Pin
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.