采用 2.25MHz 降壓轉(zhuǎn)換器且具有雙路 LDO 和 SVS 的電源管理 IC (PMIC)
Regulated outputs (#)
3
Vin (Min) (V)
2.3
Vin (Max) (V)
6
Iout (Max) (A)
0.6
Rating
Catalog
LDO
2
Iq (Typ) (mA)
0.073
Features
Power Good
Shutdown current (ISD) (Typ) (uA)
0.16
Switching frequency (Typ) (kHz)
2250
Configurability
Factory programmable
Step-Down Converters:
VIN 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)
APPLICATIONS
Points-of-Load
Embedded Processor Power
Cell Phones
Smart Phones
PDAs
Pocket PCs
Portable Media Players
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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.
The TPS65001 extends functionality by adding a supply voltage supervisor (SVS). To maximize the flexibility of the SVS, the reset voltage is set with two external resistors and the reset time is set by a small external capacitor. For external control, the SVS can use its active-low manual reset input to connect to a push button.
The TPS65000 is available in a 16-pin leadless package (3 mm × 3 mm QFN). The TPS65001 is available in a 20-pin leadless package (3 mm × 3 mm QFN).