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RS1509

Features: • 3.3V, 5V, 12V and adjustable• Adjustable version output voltage range: 1.4-37V• ±4% max over line and load conditions• 150KHz ±15% fixed switching frequency• TTL shutdown capability• Operating voltage can be up to 40V• Output load current: 2A&#...

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SeekIC No. : 004479129 Detail

RS1509: Features: • 3.3V, 5V, 12V and adjustable• Adjustable version output voltage range: 1.4-37V• ±4% max over line and load conditions• 150KHz ±15% fixed switching frequency•...

RS1509 Data Sheet

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Part Number:
RS1509
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/27

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Product Details

Description



Features:

• 3.3V, 5V, 12V and adjustable
• Adjustable version output voltage range: 1.4-37V
• ±4% max over line and load conditions
• 150KHz ±15% fixed switching frequency
• TTL shutdown capability
• Operating voltage can be up to 40V
• Output load current: 2A
• SOP-8 and DIP-8 packages
• Low power standby mode
• Thermal-shuntdown and current-limit protection
• High efficiency
• Built-in switching a transistor on chip, requires only 4 external components


Application

• Simple High-efficiency step-down regulator
• Positive to negative converter
• On-card switching regulators


Pinout

Connection Diagram


Specifications

Parameter Symbol Value Unit
Supply Voltage

On/Off Pin Input Voltage

Feedback Pin Voltage

Output Voltage to Ground

Power Dissipation

Operating Temperature

Storage Temperature

Operating Junction Temperature Range

Operating Voltage		 VCC

VSD

VFB

VOUT

PD

Topr

Tstg

TJ

VOP		 40

-0.3~+25

-0.3~+25

-1

Internally Limited

0~+70

-65~+150

-40~+125

+4.5~+40		 V

V

V

V

W

°C

°C

°C

V



Description

The RS1509 is Monolithic IC that design for a step-down DC/DC Converter, and own the ability of driving a 2A load without additional transistor component. The output version included 3.3V, 5V, 12V and an adjustable type. It operates at a switching frequency of 150KHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Other features include a guaranteed ±4% tolerance on output voltage under specified input voltage and output load conditions, and ±15% on the oscillator frequency. Regarding protected function, thermal shutdown is to prevent over temperature operating from damage, and current limit is against over current operating of the output switch.




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