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參數(shù)資料
| 型號(hào)： | TEA1208T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類(lèi)： | 穩(wěn)壓器 |
| 英文描述： | High efficiency DC/DC converter |
| 中文描述： | SWITCHING REGULATOR, 330 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 3.90 MM, PLASTIC, MS-012, SOT96-1, SO-8 |
| 文件頁(yè)數(shù)： | 2/20頁(yè) |
| 文件大小： | 88K |
| 代理商： | TEA1208T |
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2002 Nov 15
2
Philips Semiconductors
Product specification
High efficiency DC/DC converter
TEA1208T
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 a wide range of loads
Power handling capability up to 0.42 A continuous
average current
275 kHz switching frequency
Low quiescent power consumption
External clock synchronization
True current limit for Li-ion battery compatibility
Up to 100% duty cycle in down conversion
Undervoltage lockout
Shut-down function
8-pin SO package.
APPLICATIONS
Cellular and cordless phones, Personal Digital
Assistants (PDAs) and others
Supply voltage source for low-voltage chip sets
Portable computers
Battery backup supplies
Cameras.
GENERAL DESCRIPTION
The TEA1208T is a fully integrated DC/DC converter.
Efficient, compact and dynamic power conversion is
achieved using special digital control concepts - Pulse
Width Modulation (PWM) and Pulse Frequency
Modulation (PFM), integrated low R
DSon
CMOS power
switches with low parasitic capacitances, and fully
synchronous rectification.
The device operates at a switching frequency of 275 kHz
requiring only minimum sized external components.
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.
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TEA1208T
SO8
plastic small outline package; 8 leads; body width 3.9 mm
SOT96-1
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