TPS65000 Datasheet, PDF (1/32 Pages) Texas Instruments – 2.25 MHz Step Down Converter with Dual LDOs and SVS

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TPS65000, TPS65001, TPS650001
TPS650003, TPS650006, TPS650061
SLVS810A – JUNE 2009 – REVISED OCTOBER 2009
2.25 MHz Step Down Converter with Dual LDOs and SVS
Check for Samples: TPS65000 TPS65001 TPS650001 TPS650003 TPS650006 TPS650061
FEATURES
1
•2 Step-Down Converters:
– V_IN Range From 2.3V to 6V
– Spread Spectrum Clock (SSC) Generation
for Reduced EMI
– 2.25MHz Fixed Frequency Operation
– 600mA or 1A (TPS650061) Output Current
• LDOs:
– V_IN Range From 1.6V to 6V
– Adjustable Output Voltage
– Up to 300mA Output Current
– Separate Power Inputs and Enables
• Supply Voltage Supervisor (TPS65001)
– Manual Reset Input for Push Button
– Adjustable Reset Time
– Adjustable Reset Voltage
• 3mm × 3mm 16-Pin QFN (TPS65000)
• 3mm x×3mm 20-Pin QFN (TPS65001)
APPLICATIONS
• Point of Load
• Embedded Processor Power
• Cell Phones, Smart-Phones
• PDAs, Pocket PCs
• Portable Media Players
DESCRIPTION
The TPS65000 and TPS65001 are single chip Power
Management ICs for portable applications. Both
devices combine 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 devices can
be forced into fixed frequency PWM via 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 Power Good
status output that can be used for sequencing. The
LDOs are capable of supplying 300mA, and can
operate with an input voltage range between 1.6V
and 6V, 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, allowing for
design and sequencing flexibility.
The TPS65000 is available in a 16-pin leadless
package (3mm × 3mm QFN).
The TPS65001 extends functionality by adding a
Supply Voltage Supervisor (SVS). The SVS allows
maximum flexibility by having the reset voltage set
with two external resistors, and the reset time set by
a small external capacitor. In addition, an active low
Manual Reset input allows the SVS to be connected
to a push button for external control.
The TPS65001 is available in a 20-pin leadless
package (3mm × 3mm QFN).
V_IN
475kW
V_IN
232kW
A
VDCDC
TPS65000/1
Oscillator
SSCG
EN_DCDC
VINDCDC
10mF
A
P
0.1mF
470kW
A
V_IN
100nF
AA
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
10mF
P
470kW
470kW
180kW
A
820kW
180kW
P
A
10mF
P
10mF
P
TPS65000/01 Joint Function/Pin
TPS65001 Only Function/Pin
VDCDC
3.3V
V_IN
100kW
VLDO1
1.8V
VLDO2
2.8V
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 © 2009, Texas Instruments Incorporated