LCSC Electronics logoLCSC Electronics svg logo
Sign In
USD
Cart
RICHTEK RT7257BHZSP product image
  • RT7257BHZSP thumbnail 1
  • RT7257BHZSP thumbnail 2
  • RT7257BHZSP thumbnail 3
  • Pinout
  • Footprint
Images for reference only

RICHTEK RT7257BHZSPRoHS

Manufacturer
RICHTEKAsian Brands
MPN
RT7257BHZSP
LCSC Part #
C27998
Packaging
SOIC-8-EP
Customer #
Key Attributes
High Efficiency 3A Synchronous Step-Down Converter
Datasheetpdf iconRICHTEK RT7257BHZSP
In-Stock: 4,883
4,883 In stock, ships now
Add to BOM List
QtyUnit PriceTotal Amount
1+$ 0.6301$ 0.63
10+$ 0.5145$ 5.15
30+$ 0.4559$ 13.68
100+$ 0.3989$ 39.89
500+$ 0.3648$ 182.40
1,000+$ 0.3485$ 348.50
Standard Packaging2500/Full Reel
Better price for more quantity?
$

Products Specifications

Show similar products (0) >
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerRICHTEK
PackagingSOIC-8-EP
Operating Temperature-40℃~+125℃@(TJ)
Frequency - Switching1.2MHz
FunctionStep-down type
Number of Outputs1
FeaturesAdjustable soft-start;Cycle-by-cycle current limiting;Hiccup current limiting;Protection latch;External compensation;Load disconnect;Overcurrent Protection
Output TypeAdjustable
TopologyBuck
Operating Voltage4.5V~18V
Switch tube (built-in/external)Built-in
Output Voltage800mV~12V
Output Current3A
Quiescent Current800uA
Report an ErrorShow similar products (0) >

Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The RT7257B is a high efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 3A output current from a 4.5V to 18V input supply. The RT7257B's current mode architecture and external compensation allow the transient response to be optimized over a wide input voltage range and loads. Cycle-by-cycle current limit provides protection against shorted outputs, and soft-start eliminates input current surge during start-up. The RT7257B also provides under voltage protection and thermal shutdown protection. The low current (<3μA) shutdown mode provides output disconnection, enabling easy power management in battery-powered systems. The RT7257B is available in an SOP-8 (Exposed Pad) package.

Features

AI Translation
  • ±1.5% High Accuracy Reference Voltage
  • 4.5V to 18V Input Voltage Range
  • 3A Output Current
  • Integrated N-MOSFET Switches
  • Current Mode Control Fixed Frequency Operation: 1.2MHz
  • Output Adjustable from 0.8V to 12V
  • Up to 95% Efficiency
  • Programmable Soft-Start
  • Stable with Low ESR Ceramic Output Capacitors Cycle-by-Cycle Over Current Protection
  • Input Under Voltage Lockout
  • Output Under Voltage Protection
  • Thermal Shutdown Protection
  • RoHS Compliant and Halogen Free

Applications

AI Translation
  • Wireless AP/Router
  • Set-Top-Box
  • Industrial and Commercial Low Power Systems
  • LCD Monitors and TVs
  • Green Electronics/Appliances
  • Point of Load Regulation of High-Performance DSPs