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TEA1207T

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. : 004517272 Detail

TEA1207T: 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...

TEA1207T Data Sheet

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Part Number:
TEA1207T
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
· 8-pin SO 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.


Pinout

Connection Diagram


Specifications

SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT

Vn

voltage on any pin

shut-down mode
-0.2
+6.5

V

operational mode
-0.2
+5.9

V

Tj
junction temperature
-25
+150
°C
Tamb
operating ambient temperature
-40
+80
°C
Tstg
storage temperature
-65
+125
°C
Ves
electrostatic handling
note 1
-3000
+3000
V

Note
1. Human body model: equivalent to discharging a 100 pF capacitor through a 1.5 k series resistor.




Description

The TEA1207T is a fully integrated DC/DC converter. Efficient, compact and dynamic power conversion is achieved using a novel digitally controlled concept like 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 operates at 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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