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TEA1207UK

Features: · Fully integrated DC/DC converter circuit· Up-or-down conversion· Start-up from 1.85 V input voltage· Adjustable output voltage· High efficiency over large load range· Power handling capability up to 0.85 A continuous average current· 275 kHz switching frequency· Low quiescent power con...

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SeekIC No. : 004517273 Detail

TEA1207UK: Features: · Fully integrated DC/DC converter circuit· Up-or-down conversion· Start-up from 1.85 V input voltage· Adjustable output voltage· High efficiency over large load range· Power handling capa...

TEA1207UK Data Sheet

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Part Number:
TEA1207UK
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

· Fully integrated DC/DC converter circuit
· Up-or-down conversion
· Start-up from 1.85 V input voltage
· Adjustable output voltage
· High efficiency over large load range
· Power handling capability up to 0.85 A continuous average current
· 275 kHz switching frequency
· Low quiescent power consumption
· Synchronizing with external clock
· True current limit for Li-ion battery compatibility
· Up to 100% duty cycle in down mode
· Undervoltage lockout
· Shut-down function
· 2×2 mm footprint chip scale package.


Application

· Cellular and cordless phones, Personal Digital Assistants (PDAs) and others
· Supply voltage source for low-voltage chip sets
· Portable computers
· Battery backup supplies
· Cameras.


Specifications

Symbol
 PARAMETER
CONDITIONS
MIN.
MAX.
Unit
Vn
 voltage on any ball
shut-down mode
-0.2
+6.5
V
operating mode
-0.2
+5.9
V
Tj
 junction temperature
-25
+150
Tamb
 ambient temperature
-40
+80
Tstg
 storage temperature
-40
+125
Ves
 electrostatic handling voltage
human body model; note 1
-4000
+4000
V
machine model; note 2
-300
+300
V
Notes
1. Class 3; equivalent to discharging a 100 pF capacitor through a 1500 resistor.
2. Class 2; equivalent to discharging a 200 pF capacitor through a 10 resistor and a 0.75 H inductor.


Description

The TEA1207UK is a fully integrated DC/DC converter. Efficient, compact and dynamic power conversion is achieved using a novel digitally controlled concept such as Pulse Width Modulation (PWM) or Pulse Frequency Modulation (PFM), integrated low RDSon CMOS power switches with low parasitic capacitances, and fully synchronous rectification.

The device TEA1207UK operates at a 275 kHz switching frequency which enables the use of external components with minimum size. Deadlock is prevented by an on-chip undervoltage lockout circuit.

Efficient behaviour during short load peaks and compatibility with Li-ion batteries is guaranteed by an accurate current limiting function.




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