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TPS51120RHBT +BOM

Buck Regulator Positive Output Step-Down DC-DC Controller IC 32-VQFN (5x5)

Produttore:

Texas Instruments, Inc
ProduttorePart #:

TPS51120RHBT
Scheda dati:

TPS51120RHBT Scheda dati (PDF)
Vin (min) (V):

4.5
Vin (max) (V):

28
Vout (min) (V):

1
Vout (max) (V):

5.5
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TPS51120RHBT Descrizione generale

The TPS51120RHBT is an advanced dual, synchronous step-down controller designed for high-power applications in notebook computer systems. With the capability to run off a three- or four-cell Li-ion battery, this controller provides reliable and efficient 5V and/or 3.3V standby regulation for all downstream circuitry. Its high-current linear regulators ensure seamless switch over to SMPS and can operate independently during standby mode, offering uninterrupted power supply. The adaptive on-time control scheme allows for optimized operation across various load conditions, with optional D-CAP mode for reduced external components. With dynamic UVP support and various protection features, the TPS51120RHBT guarantees reliable operation and protection against voltage fluctuations and faults. The 32-pin QFN package ensures easy integration while offering a wide operating temperature range for versatile use in different environments

Caratteristiche principali

Safe Shutdown Mode
Low Dropout Voltage
High Efficiency Conversion
Overcurrent Protection Enabled
Fault Detection with Delay
PWM-only Operation for Fast Response

Specifiche

Vin (min) (V)	4.5	Vin (max) (V)	28
Vout (min) (V)	1	Vout (max) (V)	5.5
Iout (max) (A)	20	Iq (typ) (mA)	0.75
Switching frequency (min) (kHz)	180	Switching frequency (max) (kHz)	500
Features	Enable, Light Load Efficiency, Power good, Synchronous Rectification	Operating temperature range (°C)	-40 to 85
Regulated outputs (#)	2	Number of phases	1
Rating	Catalog	Control mode	D-CAP, current mode
Type	Controller	Pin Count	33
Released Date	Aug 8, 2019	Last Modified Date	Mar 7, 2023 4:10 PM UTC

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