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Convertidores de CC/CC

TPS61091

NO RECOMENDADO PARA NUEVOS DISEÑOS

Convertidor elevador con salida de 3.3 V, 500 mA, eficiencia del 96 % y 20 µA, QFN-16

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TPS61091 no se recomienda para nuevos diseños
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Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
TPS61023 ACTIVO Convertidor elevador de 3.7 A con tensión de entrada ultrabaja de 0.5 V For applications requiring smaller package or smaller output current.
TPS61230 ACTIVO Convertidor elevador síncrono de alta eficiencia y tensión de salida ajustable de 5 A For applications requiring smaller package or higher output current.

TPS61091

NO RECOMENDADO PARA NUEVOS DISEÑOS
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Detalles del producto

Rating Catalog Topology Boost Vin (max) (V) 5.5 Vin (min) (V) 1.8 Vout (max) (V) 3.3 Vout (min) (V) 3.3 Switch current limit (typ) (A) 2 Features Synchronous Rectification Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00002 Duty cycle (max) (%) 100
Rating Catalog Topology Boost Vin (max) (V) 5.5 Vin (min) (V) 1.8 Vout (max) (V) 3.3 Vout (min) (V) 3.3 Switch current limit (typ) (A) 2 Features Synchronous Rectification Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00002 Duty cycle (max) (%) 100
VQFN (RSA) 16 16 mm² (4 mm × 4 mm)
  • Synchronous (96% Efficient) Boost Converter
    With 500-mA Output Current From 1.8-V Input
  • Available in a 16-Pin VQFN 4 × 4 Package
  • Device Quiescent Current: 20 µA (Typ)
  • Input Voltage Range: 1.8 V to 5.5 V
  • Adjustable Output Voltage Up to 5.5 V Fixed Output
    Voltage Options
  • Power Save Mode for Improved Efficiency at Low
    Output Power
  • Low Battery Comparator
  • Low EMI-Converter (Integrated Antiringing Switch)
  • Load Disconnect During Shutdown
  • Over-Temperature Protection
  • Synchronous (96% Efficient) Boost Converter
    With 500-mA Output Current From 1.8-V Input
  • Available in a 16-Pin VQFN 4 × 4 Package
  • Device Quiescent Current: 20 µA (Typ)
  • Input Voltage Range: 1.8 V to 5.5 V
  • Adjustable Output Voltage Up to 5.5 V Fixed Output
    Voltage Options
  • Power Save Mode for Improved Efficiency at Low
    Output Power
  • Low Battery Comparator
  • Low EMI-Converter (Integrated Antiringing Switch)
  • Load Disconnect During Shutdown
  • Over-Temperature Protection

The TPS6109x devices provide a power supply solution for products powered by either a one-cell Li-Ion or Li-Polymer, or a two-cell alkaline, NiCd or NiMH battery and required supply currents up to or higher than 1 A. The converter generates a stable output voltage that is either adjusted by an external resistor divider or fixed internally on the chip. It provides high efficient power conversion and is capable of delivering output currents up to 0.5 A at 5 V at a supply voltage down to 1.8 V. The implemented boost converter is based on a fixed frequency, pulse-width- modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. Boost switch and rectifier switch are connected internally to provide the lowest leakage inductance and best EMI behavior possible. The maximum peak current in the boost switch is limited to a value of 2500 mA.

The converter can be disabled to minimize battery drain. During shutdown, the load is completely disconnected from the battery. A low-EMI mode is implemented to reduce ringing and, in effect, lower radiated electromagnetic energy when the converter enters the discontinuous conduction mode.

The output voltage can be programmed by an external resistor divider or is fixed internally on the chip.

The device is packaged in a 16-pin VQFN 4-mm × 4-mm (16 RSA) package.

The TPS6109x devices provide a power supply solution for products powered by either a one-cell Li-Ion or Li-Polymer, or a two-cell alkaline, NiCd or NiMH battery and required supply currents up to or higher than 1 A. The converter generates a stable output voltage that is either adjusted by an external resistor divider or fixed internally on the chip. It provides high efficient power conversion and is capable of delivering output currents up to 0.5 A at 5 V at a supply voltage down to 1.8 V. The implemented boost converter is based on a fixed frequency, pulse-width- modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. Boost switch and rectifier switch are connected internally to provide the lowest leakage inductance and best EMI behavior possible. The maximum peak current in the boost switch is limited to a value of 2500 mA.

The converter can be disabled to minimize battery drain. During shutdown, the load is completely disconnected from the battery. A low-EMI mode is implemented to reduce ringing and, in effect, lower radiated electromagnetic energy when the converter enters the discontinuous conduction mode.

The output voltage can be programmed by an external resistor divider or is fixed internally on the chip.

The device is packaged in a 16-pin VQFN 4-mm × 4-mm (16 RSA) package.
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* Hoja de datos TPS6109x Synchronous Boost Converter With 2-A Switch datasheet (Rev. C) PDF | HTML 24/12/2014

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