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See Technical Specifications

TPS51020DBT +BOM

Dual, DDR selectable, Synchronous buck controller

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

TPS51020DBT
Datasheet:

TPS51020DBT Datasheet (PDF)
Applications:

Controller, DDR
Voltage - Input:

4.5V ~ 28V
Number of Outputs:

2
Voltage - Output:

0.9V ~ 24V
EDA/CAD Models:

Request Free CAD Models for TPS51020DBT

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Tel: +852 95804164

TPS51020DBT General Description

The TPS51020 is a multi-function dual-synchronous step-down controller for notebook system power. The part is specifically designed for high performance, high efficiency applications where the loss associated with a current sense resistor is unacceptable. The TPS51020 utilizes feed forward voltage mode control to attain high efficiency without sacrificing line response. Efficiency at light load conditions can be maintained high as well by incorporating autoskip operation. A selectable, Suspend to RAM (STR) supported, DDR option provides a one chip solution for all switching applications from 5-V/3.3-V supply to a complete DDR termination solution.

Key Features

Wide Input Voltage Range: 4.5-V to 28-V
Selectable Dual and DDR Modes
Selectable Fixed Frequency Voltage Mode
Advanced Power Good Logic Monitors both Channels
Selectable Autoskip Mode
Integrated Boot Strap Diodes
180° Phase Shift Between Channels
Integrated 5-V, 60-mA Regulator
Input Feedforward Control
1% Internal 0.85-V Reference
R_DS(on) Overcurrent Detection (4200 ppm/°C)
Integrated OVP, UVP and Power Good Timers
30-pin TSSOP Package
APPLICATIONS
- Notebook Computers System Bus and I/O
- DDR I or DDR II Termination

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Special Purpose Regulators	Series	-
Applications	Controller, DDR	Voltage - Input	4.5V ~ 28V
Number of Outputs	2	Voltage - Output	0.9V ~ 24V
Operating Temperature	-40°C ~ 85°C	Mounting Type	Surface Mount
Base Product Number	TPS51020	DDR memory type	DDR, DDR2
Control mode	Voltage mode	Iout VDDQ (max) (A)	15
Iout VTT (max) (A)	15	Iq (typ) (mA)	1.4
Output	VDDQ, VREF, VTT	Vin (min) (V)	4.5
Vin (max) (V)	28	Features	Complete Solution, Shutdown Pin for S3
Rating	Catalog	Operating temperature range (°C)	-40 to 85
Regulator type	Dual Step-Down Controller	Vin bias (max) (V)	28
Vin bias (min) (V)	4.5	Vout VTT (min) (V)	0.9
feature-topology	Step Down	feature-number-of-outputs	2
feature-output-voltage-v	0.9 to 24	feature-minimum-output-current-a
feature-maximum-output-current-a	20	feature-minimum-input-voltage-v	4.5
feature-maximum-switching-frequency-khz	450	feature-maximum-input-voltage-v	28
feature-operating-supply-voltage-v	4.5 to 28	feature-maximum-supply-current-ma	2.2
feature-maximum-power-dissipation-mw	874	feature-minimum-switching-frequency-khz
feature-synchronous-rectifier		feature-synchronous-clock
feature-packaging	Tube	feature-rad-hard
feature-pin-count	30	feature-cecc-qualified	No
feature-esd-protection		feature-military	No
feature-aec-qualified	No	feature-aec-qualified-number
feature-eccn-code	EAR99	feature-svhc	Yes
feature-svhc-exceeds-threshold	No

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Ratings and Reviews

J**n 09/14/2023

Super! Thx!Infa for buyers:When powered by 5 v and the signal from the laptop, the sound without distortion is only at 50% of the volume of the laptop.

G**n 09/12/2023

As not tracked parcel was 50 days in g. Pyatigorsk. Can be ordered without tracking. Connectors all arrange.

C**b 08/23/2021

very fast chipping thanks vendor

B**n 08/09/2020

Products arrived smoothly as usual successful thx