Position: Home  > All Categories> Integrated Circuits (ICs) > SPX2945

SPX2945

Features: ` Output 3.3V, 5.0V at 400mA Output` Very Low Quiescent Current, 100A` Low Dropout Voltage, 420mV at 400mA` Extremely Tight Load and Line Regulation` Very Low Temperature Coefficient` Current & Thermal Limiting` Error Flag Warns Of Output Dropout` Logic-Controlled Electronic Shutdown...

product image

SPX2945 Picture
See larger image
SeekIC No. : 004501547 Detail

SPX2945: Features: ` Output 3.3V, 5.0V at 400mA Output` Very Low Quiescent Current, 100A` Low Dropout Voltage, 420mV at 400mA` Extremely Tight Load and Line Regulation` Very Low Temperature Coefficient` Curr...

SPX2945 Data Sheet

floor Price/Ceiling Price

Get Latest Price
Part Number:
SPX2945
Supply Ability:
5000

Price Break

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

SeekIC Buyer Protection PLUS - newly updated for 2013!

  • Escrow Protection.
  • Guaranteed refunds.
  • Secure payments.
  • Learn more >>

Month Sales

268 Transactions

Rating

evaluate  (4.8 stars)

Upload time: 2025/12/24

add to my favourite

Payment Methods

All payment methods are secure and covered by SeekIC Buyer Protection PLUS.

Notice: When you place an order, your payment is made to SeekIC and not to your seller. SeekIC only pays the seller after confirming you have received your order. We will also never share your payment details with your seller.
Product Details

Description



Features:

` Output 3.3V, 5.0V at 400mA Output
` Very Low Quiescent Current, 100A
` Low Dropout Voltage, 420mV at 400mA
` Extremely Tight Load and Line Regulation
` Very Low Temperature Coefficient
` Current & Thermal Limiting
` Error Flag Warns Of Output Dropout
` Logic-Controlled Electronic Shutdown
` Output Programmable From 1.24V to 20V (for SO-8)




Pinout

Connection Diagram




Specifications

Power Dissipation .....................................................Internally Limited
Lead Temp. (Soldering, 5 Seconds) ........................................... .260
Storage Temperature Range .......................................-65 to +150
Operating Junction Temperature Range .......................40 to +125
Input Supply Voltage ......................................................-20V to +26V
ABSOLUTE MAXIMUM RATINGS
Feedback Input Voltage ................................................ -1.5V to +26V
Shutdown Input Voltage ................................................-0.3V to +26V
Error Comparator Output .............................................. -0.3V to +26V
ESD Rating ............................................................................ ..2kV Min

Specifications
Iout(mA) 400
Vin MIN. (V) 4.1
Vin MAX. (V) 30
IQ (A) 100
Acc 0.5%, 1%
Vdrop (mV) 420
Vout1.2V
Vout1.5V No
Vout1.8V No
Vout2.0V No
Vout2.5V No
Vout2.7V No
Vout2.85V No
Vout2.8V No
Vout3.0V No
Vout3.3V Yes
Vout3.5V No
Vout5.0V Yes
VoutAdj. No





Description

The SPX2945 is a low power voltage regulator. This device is an excellent choice for use in battery-powered pplications such as cordless telephones, radio control systems, and portable computers. The SPX2945 features very low quiescent current (100A Typ.) and very low dropout voltage. This includes a tight initial tolerance of 1% max and very low output temperature coefficient, making the SPX2945 useful as a lowpower voltage reference.

The error flag output feature is used as power-on reset for warning of a low output voltage, due to a falling voltage input of batteries. Another feature is the logic-compatible shutdown input which enables the regulator to be switched on and off. The SPX2945 is offered in 3-pin TO-220 package, SO-8 (same pin out as SPX2951), SOT-223, surface mount 3-Pin TO-252, 3-Pin TO-263 packages and 5-Pin TO-263.

The regulator output voltage (of the 8-pin SO-8 SPX2945) may be pin-strapped for a 3.3V and 5.0V or programmed from 1.24V to 20V with an external pair of resistors. Look for SPX2951 for 150mA and SPX2954 for 250mA applications.






Customers Who Bought This Item Also Bought

Margin,quality,low-cost products with low minimum orders. Secure your online payments with SeekIC Buyer Protection.
You may also be interested in :
RF and RFID
X3C26P1-30S
1P620S
Line Protection, Backups
BX0023
A20B-1008-0550
Power Supplies - External/Internal (Off-Board)
A76L-0300-0077
A5E01231722-F2
Audio Products
HUC1002
WM-64CT
Motors, Solenoids, Driver Boards/Modules
IHSS57-36-20
ASD-B2-1521-B
Cables, Wires - Management
NM-SF50+
CCK26.5-MM-190-30
View more