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S-1155

Features: • Output voltage : 1.0 to 5.0 V, selectable in 0.05 V step.• Low equivalent series resistance capacitor : Ceramic capacitor of 4.7 F or more can be used as the I/O capacitor.• Input voltage : 1.5 to 5.5 V• High-accuracy output voltage : ±1.0% (1.0 to 1.45 V output...

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SeekIC No. : 004481109 Detail

S-1155: Features: • Output voltage : 1.0 to 5.0 V, selectable in 0.05 V step.• Low equivalent series resistance capacitor : Ceramic capacitor of 4.7 F or more can be used as the I/O capacitor.&#...

S-1155 Data Sheet

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Part Number:
S-1155
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:

• Output voltage : 1.0 to 5.0 V, selectable in 0.05 V step.
• Low equivalent series resistance capacitor : Ceramic capacitor of 4.7 F or more can be used as the I/O capacitor.
• Input voltage : 1.5 to 5.5 V
• High-accuracy output voltage : ±1.0% (1.0 to 1.45 V output product : ±15 mV)
• Low dropout voltage : 70 mV typ. (3.0 V output product, at IOUT = 200 mA)
• Low current consumption : During operation : 70 A typ., 90 A max. (3.0 V output product)
   During shutdown : 0.1 A typ., 1.0 A max.
• Output current : 500 mA (3.0 V output product, at VIN VOUT(S) + 1.0 V)*1
• High ripple rejection : 70 dB typ. (at 1.0 kHz, VOUT = 1.0 V)
• Built-in overcurrent protection circuit : limits overcurrent of output transistor
• Built-in thermal shutdown circuit : prevents damage caused by heat
• Built-in rush current control circuit : limits excessive rush current during start-up
• Built-in power on/off circuit : Longer battery life
• Small package : SOT-89-5
• Lead-free product
*1. Attention should be paid to the power dissipation of the package when the output current is large.


Application

• Power supply for battery-powered devices
• Power supply for TV, notebook PCs and home electric appliances
• Constant-voltage power supply for portable equipment


Pinout

Connection Diagram


Specifications

Item Symbol
Absolute Maximum Rating
Unit
Input voltage VIN
VSS − 0.3 to VSS + 6
V
VON/OFF
VSS − 0.3 to VIN + 0.3
V
Output voltage VOUT
VSS − 0.3 to VIN + 0.3
V
Power dissipation PD
1000*1
mW
Operating ambient temperature Topr
−40 to +85
Storage temperature Tstg
−40 to +125
*1. When mounted on board
[Mounted board]
(1) Board size : 114.3 mm * 76.2 mm * t1.6 mm
(2) Name : JEDEC STANDARD51-7
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-1155 Series, developed based on CMOS technology, is a positive voltage regulator with a super low dropout voltage, high output voltage accuracy, and low current consumption.

The S-1155 Series provides the very small dropout voltage and the large output current due to the built-in transistor with low on-resistance. The overcurrent protector prevents the load current from exceeding the capacitance of output transistor. The thermal shutdown circuit prevents damage caused by heat, the rush current control circuit limits the excessive rush current during start-up.

The ON/OFF circuit of the S-1155 ensures longer battery life. Various capacitors, also small ceramic capacitors, can be used for this IC more than for the   conventional regulator ICs which have CMOS technology.

The small package SOT-89-5 enables high-density mounting.




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