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LM2614ATLX bảng dữ liệu(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
tên linh kiện LM2614ATLX
Giải thích chi tiết về linh kiện  400mA Sub-Miniature Adjustable DC-DC Converter Optimized for RF Power Amplifiers
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nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2614ATLX bảng dữ liệu(HTML) 3 Page - National Semiconductor (TI)

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Connection Diagrams
10-Bump micro SMD Package
20036704
Top View
20036705
Bottom View
Ordering Information
Order Number
Package Type
NSC Package
Marking (*)
Supplied As
LM2614ATL
10-bump Wafer Level Chip Scale
(micro SMD)
XYTT S50A
250 Tape and Reel
LM2614BTL
XYTT S50B
250 Tape and Reel
LM2614ATLX
XYTT S50A
3000 Tape and Reel
LM2614BTLX
XYTT S50B
3000 Tape and Reel
(*) XY - denotes the date code marking (2 digit) in production
(*) TT - refers to die run/lot traceability for production
(*) S - product line designator
Package markings may change over the course of production.
Pin Description
Pin Number
Pin Name
Function
A1
FB
Feedback Analog Input.
B1
EANEG
Inverting input of error amplifier
C1
EAOUT
Output of error amplifier
D1
SYNC/MODE
Synchronization Input. Use this digital input for frequency selection or modulation control.
Set:
SYNC/MODE = high for low-noise 600kHz PWM mode
SYNC/MODE = low for low-current PFM mode
SYNC/MODE = a 500kHz–1MHz external clock for synchronization in PWM mode. (See
Synchronization and Operating Modes in the Device Information section.)
D2
EN
Enable Input. Set this Schmitt trigger digital input high for normal operation. For shutdown,
set low. Set EN low during system power-up and other low supply voltage conditions.
(See Shutdown Mode in the Device Information section.)
D3
PGND
Power Ground
C3
SW
Switching Node connection to the internal PFET switch and NFET synchronous rectifier.
Connect to an inductor with a saturation current rating that exceeds the max Switch Peak
Current Limit of the LM2614.
B3
PVIN
Power Supply Voltage Input to the internal PFET switch. Connect to the input filter
capacitor.
A3
VDD
Analog Supply Input. If board layout is not optimum, an optional 0.1µF ceramic capacitor
is suggested.
A2
SGND
Analog and Control Ground
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