TPS51285BRUKR

Step-down type Adjustable WQFN-20-EP(3x3) Voltage Regulators - Linear + Switching RoHS

WQFN-20-EP(3x3)ROHS3 CompliantActive

Ultra-Low Quiescent Dual Synchronous Step-Down Controller with 5V and 3.3V LDOs

Manufacturer: TI
Manufacturer part #: TPS51285BRUKR
Store part #: C269270
Package / case: WQFN-20-EP(3x3)
Category: Voltage Regulators - Linear + Switching
Packaging: Tape & Reel (TR)

Datasheet (PDF)

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2,794 in stock

#C269270

Stock & price checked 5 days ago

Quantity	Unit price	Pack price
1+	₹73.52	₹73.52
10+	₹58.53	₹585.30
30+	₹50.94	₹1,528.20
100+	₹43.54	₹4,354.00
500+	₹39.20	₹19,600.00
1,000+	₹36.86	₹36,860.00

Quantity (min 1)

1 × ₹73.52

₹73.52

excl. GST

₹86.75 incl. 18% GST

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Standard pack: 3,000 per reel

TPS51285BRUKR

₹73.52 for 1 + GST

Specifications

Synchronous Rectifier: Yes
Function: Step-down type
Frequency - Switching: 400kHz;475kHz
Number of Outputs: 2
Output Type: Adjustable
Quiescent Current: 84uA;10uA
Output Voltage: 4.5V~5.5V;2.97V~3.63V
Operating Voltage: 5V~24V
Operating Temperature: -40℃~+85℃
Topology: Buck
Features: Adjustable current limiting;Cycle-by-cycle current limiting;Output discharge;Operating status indication;Overcurrent Protection;Built-in LDO regulator;Light load efficient mode

Packaging & compliance

RoHS: ROHS3 Compliant
Lifecycle: Active
ECCN: EAR99
Packaging: Tape & Reel (TR)
Standard pack: 3,000 / Reel
Sold per: Piece
Minimum order: 1
Unit weight: 0.5 g

Overview

The TPS51285A and TPS51285B are cost-effective, dual synchronous buck controllers with 5-V and 3.3-V LDOs, targeted for notebook system-power supply solutions. The device achieves low power consumption by the use of auto-skip and ULQ™ modes, which is beneficial for long battery life in system stand-by mode. The 256-kHz VCLK output is provided to drive an external charge pump, generating gate drive voltage for the load switches with minimum power consumption in the main converter. The device employs adaptive on-time DCAP™ mode control which enables fast load transient response without external compensation network. The TPS51285A/B operates with supply input voltage ranging from 5V to 24V and supports output voltages of 5 V and 3.3 V. The TPS51285A and TPS51285B are available in a 20-pin 3×3 (mm) QFN package and is specified from -40°C to 85°C.

Applications

Notebook Computers
Tablet Computers

Key features

Input Voltage Range: 5 V to 24 V
Output Voltages: 5 V and 3.3 V (Adjustable Range ±10%)
Built-in, 100-μA, 5-V and 3.3-V LDOs
Clock Output for Charge-Pump ±1% Reference Accuracy
Adaptive On-Time D-CAP™ Mode Control Architecture with 400 kHz (CH1) and 475 kHz (CH2) Frequency
Auto-skip and ULQ™ modes for long battery life in system stand-by mode
Internal 0.8-ms Voltage Servo Soft-Start
Low-Side RDS(on) Current Sensing Scheme
Built-In Output Discharge Function
Separate Enable Input for Switchers
Dedicated OC Setting Terminals
Power Good Indicator
OVP, UVP and OCP Protection
Non-Latch UVLO and OTP Protection
20-Pin, 3 mm × 3 mm, QFN (RUK)