LM2614ATLX NSC [National Semiconductor], LM2614ATLX Datasheet - Page 3

• Manufacturer Part Number: LM2614ATLX
• Description: 400mA Sub-Miniature Adjustable DC-DC Converter Optimized for RF Power Amplifiers
• Manufacturer: NSC [National Semiconductor]

Connection Diagrams
10-Bump micro SMD Package
Ordering Information
Pin Description
Pin Number
(*) 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.
LM2614ATL
LM2614BTL
LM2614ATLX
LM2614BTLX
Order Number
A1
B1
C1
D1
D2
D3
C3
B3
A3
A2
SYNC/MODE
Pin Name
10-bump Wafer Level Chip Scale
EANEG
EAOUT
PGND
SGND
PVIN
VDD
Top View
SW
EN
FB
Package Type
(micro SMD)
Feedback Analog Input.
Inverting input of error amplifier
Output of error amplifier
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.)
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.)
Power Ground
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.
Power Supply Voltage Input to the internal PFET switch. Connect to the input filter
capacitor.
Analog Supply Input. If board layout is not optimum, an optional 0.1µF ceramic capacitor
is suggested.
Analog and Control Ground
20036704
NSC Package
Marking (
XYTT S50A
XYTT S50B
XYTT S50A
XYTT S50B
3
*
)
Function
250 Tape and Reel
250 Tape and Reel
3000 Tape and Reel
3000 Tape and Reel
Bottom View
Supplied As
20036705
www.national.com