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):
– VIN 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.