TPS65270RGER

1.4MHz Step-down type Adjustable 800mV~15V VQFN-24-EP(4x4) Voltage Regulators - DC DC Switching Regulators RoHS

VQFN-24-EP(4x4)ROHS3 CompliantActive

Dual Synchronous Buck Regulator with Integrated MOSFETs

Manufacturer: TI
Manufacturer part #: TPS65270RGER
Store part #: C882386
Package / case: VQFN-24-EP(4x4)
Category: Voltage Regulators - DC DC Switching Regulators
Packaging: Tape & Reel (TR)

Datasheet (PDF)

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3 in stock

#C882386

Stock & price checked 3 days ago

Quantity	Unit price	Pack price
1+	₹391.41	₹391.41
10+	₹332.26	₹3,322.60
30+	₹295.08	₹8,852.40
100+	₹257.24	₹25,724.00
500+	₹240.06	₹1,20,030.00
1,000+	₹232.68	₹2,32,680.00

Quantity (min 1)

1 × ₹391.41

₹391.41

excl. GST

₹461.86 incl. 18% GST

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Standard pack: 3,000 per reel

TPS65270RGER

₹391.41 for 1 + GST

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Specifications

Operating Temperature: -40℃~+85℃@(TA)
Frequency - Switching: 1.4MHz
Number of Outputs: 2
Function: Step-down type
Features: Adjustable soft-start;Cycle-by-cycle current limiting;Hiccup current limiting;Light load efficient mode;External compensation;Built-in LDO regulator;Overcurrent Protection
Output Type: Adjustable
Topology: Buck
Operating Voltage: 4.5V~18V
Switch tube (built-in/external): Built-in
Output Voltage: 800mV~15V
Output Current: 2A;3A
Quiescent Current: 1mA

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: 0.166 g

Overview

TPS65270 is a power management IC with two step-down buck converters. Both high-side and low-side MOSFETs are integrated to provide fully synchronous conversion with higher efficiency. TPS65270 can support 4.5-V to 18-V input supply, 2-A continuous current for Buck 1 and 3 A for Buck 2. The buck converters have an automatic PSM mode, which can improve power dissipation during light loads. Alternatively, the device implements a constant frequency mode by connecting the LOW_P pin to ground. The wide switching frequency of 300 kHz to 1.4 MHz allows for efficiency and size optimization. The switching frequency is adjustable by selecting a resistor to ground on the ROSC pin. Input ripple is reduced by 180° out-of-phase operation between Buck 1 and Buck 2. Both buck converters have peak current mode control which simplifies the loop compensation. A traditional type II compensation network can stabilize the system and achieve fast transient response. Moreover, an optional capacitor in parallel with the upper resistor of the feedback divider provides one more zero and makes the crossover frequency over 100 kHz. Each buck converter has an individual cycle-by-cycle current limit and low side reverse current limit. The device has a built-in LDO regulator. During a standby mode, the 6.5-V LDO can be used to drive MCU and other active loads. with this LDO, system is able to turn off the two buck converters so as to reduce the power consumption and improve the standby efficiency.

Applications

Digital TV
DSL modems
Cable modems
Set-top boxes
In-vehicle DVD players
Home gateway and access point networks
Wireless routers

Key features

Wide input supply voltage range (4.5V - 18V)
0.8V, ±1% accuracy reference
Up to 2A (Buck 1) and 3A (Buck 2) maximum continuous output load current
Low-power pulse skip mode for high efficiency at light loads
Adjustable switching frequency, 300kHz - 1.4MHz set by external resistor
Dedicated enable and soft-start for each buck
Peak current mode control with simple compensation circuit
Cycle-by-cycle overcurrent protection
180° phase-shifted operation to reduce input capacitance and power supply induced noise
Available in 24-lead thermally enhanced HSSOP (PWP) and 4mm x 4mm QFN (RGE) packages