RT9261 Selling Leads, Price trend, RT9261 DataSheet download, circuit diagram from SeekIC.com

Features: ` Minimal Number of External Components ( Only an Inductor, a Diode, and a Capacitor)` Ultra Low Input Current ( 5A at Switch Off)` ± 2% High Output Voltage Accuracy` Low Ripple and Low Noise` Low Start-up Voltage, 0.85V at 1mA` 75% Efficiency with Low Cost Inductor` +50 ppm/ °C Low Temp...

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SeekIC No. : 004479934 Detail

RT9261: Features: ` Minimal Number of External Components ( Only an Inductor, a Diode, and a Capacitor)` Ultra Low Input Current ( 5A at Switch Off)` ± 2% High Output Voltage Accuracy` Low Ripple and Low No...

RT9261 Data Sheet

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Part Number:: RT9261
Supply Ability:: 5000

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1~5000

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Negotiable

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15 Days

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Upload time: 2025/12/26

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Product Details

Description

Features:

` Minimal Number of External Components ( Only an Inductor, a Diode, and a Capacitor)
` Ultra Low Input Current ( 5A at Switch Off)
` ± 2% High Output Voltage Accuracy
` Low Ripple and Low Noise
` Low Start-up Voltage, 0.85V at 1mA
` 75% Efficiency with Low Cost Inductor
` +50 ppm/ °C Low Temperature-Drift
` SOT-89 and SOT-23-5 Small Packages
` RoHS Compliant and 100% Lead (Pb)-Free

Application

· Power source for battery-powered equipment
· Power source for cameras, camcorders, VCRs, PDAs, pagers, electronic data banks, and hand-held communication equipment
· Power source for applications, which require higher voltage than that of batteries used in the appliances

Pinout

Connection Diagram

Specifications

` Output Voltage ---------------------------------------------------------------------------8V
` LX Pin Voltage ⁽¹⁾ ----------------------------------------------------------------------- 8V
` EXT Pin Voltage ⁽²⁾ -------------------------------------------------- − 0.3 to V_OUT +0.3V
` EN Pin Voltage ⁽³⁾ ----------------------------------------------------− 0.3 to V_OUT +0.3V
` LX Pin Output Current ⁽¹⁾ -----------------------------------------------------------250mA
` EXT Pin Current⁽²⁾ --------------------------------------------------------------- ± 50mA
` Power Dissipation, PD @ T_A= 25°C
    SOT-89 ------------------------------------------------------------------------------- 0.5W
    SOT-23-5 ---------------------------------------------------------------------------- 0.25W
` Package Thermal Resistance
    SOT-89, JC ---------------------------------------------------------------------100°C/W
    SOT-89, JA -------------------------------------------------------------------- 300°C/W
    SOT-23-5, JA -------------------------------------------------------------------250°C/W
` Operating Temperature Range ------------------------------------------- − 20 to +85°C
` Storage Temperature Range ----------------------------------------------------- - 165°C
` Lead Temperature (Soldering, 10 sec.) -------------------------------------------- 260°C
Notes:
(1) Applicable to RT9261- CX and RT9261- CB
(2) Applicable to RT9261A- CX and RT9261A- CB
(3) Applicable to RT9261- CB and RT9261A- CB

Description

The RT9261 Series are VFM Step-up DC/DC ICs with ultra low supply current by CMOS process and suitable for use with battery-powered instruments.

The RT9261 IC consists of an oscillator, a VFM control circuit, a driver transistor (LX switch), a reference voltage unit, an error amplifier, resistors for voltage detection, and a LX switch protection circuit. A low ripple and high efficiency step-up DC/DC converter can be constructed of this RT9261 IC with only three external components.

The RT9261A IC provides with a drive pin (EXT) for an external transistor, so that a power transistor can be externally applied. Therefore, the RT9261A IC is recommended for applications where large currents are required. EN pin enables circuit to set the standby supply current at a maximum of 0.5A.

RT9261

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