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S-8352

Features: • Low voltage operation : Startup at 0.9 V min. (IOUT = 1 mA) guaranteed• Low current consumption : During operation 23.2 A (VOUT = 3.3 V, typ.) During shutdown 0.5 A (max.)• Duty ratio : 50 % / 75 % built-in auto-switching-type PFM control circuit (A, B, and D type)75 ...

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SeekIC No. : 004483291 Detail

S-8352: Features: • Low voltage operation : Startup at 0.9 V min. (IOUT = 1 mA) guaranteed• Low current consumption : During operation 23.2 A (VOUT = 3.3 V, typ.) During shutdown 0.5 A (max.)...

S-8352 Data Sheet

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Part Number:
S-8352
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: 2025/12/26

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Product Details

Description



Features:

• Low voltage operation : Startup at 0.9 V min. (IOUT = 1 mA) guaranteed
• Low current consumption : During operation 23.2 A (VOUT = 3.3 V, typ.) During shutdown 0.5 A (max.)
• Duty ratio : 50 % / 75 % built-in auto-switching-type PFM control circuit (A, B, and D type)
75 % built-in fixed-type PFM control circuit (C type)
• External parts : Coil, capacitor, and diode
• Output voltage : Selectable in 0.1 V steps between 2.0 to 6.5 V (A, B, and C type) Selectable in 0.1 V steps between 1.5 to 6.5 V (D type)
• Output voltage accuracy : ±2.4%
• Shutdown function (A type)
• VDD / VOUT separate type (D type)
• External transistor type available (S-8352 Series)
• Lead-free products


Application

• Power supplies for portable equipment such as digital cameras, electronic notebooks, and PDAs
• Power supplies for audio equipment such as portable CD / MD players
• Constant voltage power supplies for cameras, video equipment, and communications equipment
• Power supplies for microcomputers


Specifications

Item Symbol Absolute maximum rating Unit
VOUT pin voltage VOUT VSS − 0.3 to VSS + 12 V
ON/OFF pin voltage (A type) *1 VON/OFF VSS − 0.3 to VSS + 12 V
VDD pin voltage (D type)*2 VDD VSS − 0.3 to VSS + 12 V
CONT pin voltage VCONT VSS − 0.3 to VSS + 12 V
EXT pin voltage D type VEXT VSS − 0.3 to VDD + 0.3 V
Others VSS − 0.3 to VOUT + 0.3 V
CONT pin current ICONT 300 mA
EXT pin current IEXT ±50 mA
Power dissipation SOT-23-3 PD 150 mW
SOT-23-5 250 mW
SOT-89-3 500 mW
Operating ambient temperature Topr −40 to + 85
Storage temperature Tstg −40 to + 125

*1. With shutdown function
*2. For VDD / VOUT separate type
Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must therefore not be exceeded under any conditions.




Description

The S-8351/8352 Series is a CMOS step-up switching regulator controller which mainly consists of a reference voltage source, an oscillation circuit, a comparator and PFM control circuit. The S-8351/8352 PFM control circuit allows the duty ratio to be automatically switched according to the load (at light load : 50%, at high output current : 75%), enabling products with a low ripple over a wide range, high efficiency, and high output current (A, B, and D type). Products with a fixed duty ratio of 75% are also available (C type).

The S-8351/8352 Series can configure a step-up switching regulator with an external coil, capacitor, and diode. A protection circuit turns off the built-in MOS FET when the voltage at the CONT pin exceeds the limit to prevent it from being damaged. In addition to the above features, the small package and low current consumption, makes the S-8351 Series ideal for applications such as the power supply unit of portable equipment.The S-8352 Series, which features an external transistor, is suitable for applications requiring a high output current.




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