LM2619ATLX National Semiconductor, LM2619ATLX Datasheet - Page 3

• Manufacturer Part Number: LM2619ATLX
• Description: Conv DC-DC Single Step Down 2.8V to 5.5V 10-Pin uSMD T/R
• Manufacturer: National Semiconductor
• Type: Step Downr

Specifications of LM2619ATLX

• Package: 10uSMD
• Number Of Outputs: 1
• Minimum Input Voltage: 2.8 V
• Maximum Input Voltage: 5.5 V
• Switching Frequency: 500 to 1000 KHz
• Operating Supply Voltage: 2.8 to 5.5 V
• Maximum Output Current: 0.5 A
• Output Type: Adjustable
• Output Voltage: 1.5 to 3.6 V
• Switching Regulator: Yes
• Efficiency: 96(Typ) %
• Operating Temperature: -25 to 125 °C

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.
LM2619ATL
LM2619ATLX
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 LM2619.
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.
20057404
NSC Package
Marking (
XYTT S76A
XYTT S76A
3
*
)
Function
250 Tape and Reel
3000 Tape and Reel
Bottom View
Supplied As
20057405
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