LM2623AMM LM2623MMX Power Regulator IC Switching Voltage Regulators NRND, alternate is LM2623AMM/NOPB
digital voltage regulator ic
,electronic voltage regulator circuit
LM2623AMM LM2623MMX Power Regulator IC Switching Voltage Regulators NRND, alternate is LM2623AMM/NOPB
1 Features
- Good Efficiency Over a Very Wide Load Range
-
Very Low Output Voltage Ripple
-
Up to 2-MHz Switching Frequency
-
0.8-V to 14-V Operating Voltage
-
1.1-V Start-up Voltage
-
1.24-V to 14-V Adjustable Output Voltage
-
Up to 2-A Load Current at Low Output Voltages
-
0.17-Ω Internal MOSFET
-
Up to 90% Regulator Efficiency
-
80-μA Typical Operating Current (Into VDD Pin of Supply)
-
< 2.5-μA Ensured Supply Current In Shutdown
-
Small 8-Pin VSSOP Package (Half the Footprint of Standard 8-Pin SOIC Package); 1.09-mm Package Height
-
4-mm × 4-mm Thermally Enhanced WSON Package Option
2 Applications
-
Cameras, Pagers and Cell Phones
-
PDAs, Palmtop Computers, GPS devices
-
White LED Drive, TFT, or Scanned LCDs
-
Flash Memory Programming
-
Hand-Held Instruments
-
1, 2, 3, or 4 Cell Alkaline Systems
-
1, 2, or 3 Cell Lithium-ion Systems
3 Description
The LM2623 is a high-efficiency, general-purpose, step-up DC-DC switching regulator for battery- powered and low input voltage systems. It accepts an input voltage between 0.8 V and 14 V and converts it into a regulated output voltage between 1.24 V and 14 V. Efficiencies up to 90% are achievable with the LM2623.
In order to adapt to a number of applications, the LM2623 allows the designer to vary the output voltage, the operating frequency (300 kHz to 2 MHz) and duty cycle (17% to 90%) to optimize the part's performance. The selected values can be fixed or can vary with battery voltage or input to output voltage ratio. The LM2623 uses a very simple, on/off regulation mode to produce good efficiency and stable operation over a wide operating range. It normally regulates by skipping switching cycles when it reaches the regulation limit (Pulse Frequency Modulation).
Note: See Non-Linear Effect and Choosing The Correct C3 Capacitor so that any challenges with designing with this part can be taken into account before a board design/layout is finalized.
For alternative solutions, See Also: LM2700, LM2622, LM2731, LM2733, and LM2621.
Device Information
|
PART NUMBER |
PACKAGE |
BODY SIZE (NOM) |
|
LM2623 |
WSON (14) |
4.00 mm × 4.00 mm |
|
VSSOP (8) |
3.00 mm × 3.00 mm |
W25N01GVZEIG SLC Nand Flash Memory IC 3V 1G BIT Winbond TW SPI
PF48F4400P0VBQEK NEW AND ORIGINAL STOCK
DSPIC30F3011-30I/PT Flash Memory IC NEW AND ORIGINAL STOCK
IR2110PBF NEW AND ORIGINAL STOCK
S25FL032P0XMFI010 SOP8 104MHz Flash Memory IC Chip
W25Q80DVSNIG Serial Flash Chip 3V 8M BIT Dual Quad Spi Memory Integrated Circuit
MOS Tube Field Effect Single-Chip Drive PWM Controlador Module IRF520
MAX485, RS485 Module TTL To RS-485 Module TTL To 485
SKY65336-11 NEW AND ORIGINAL STOCK
| Image | Part # | Description | |
|---|---|---|---|
|
|
W25N01GVZEIG SLC Nand Flash Memory IC 3V 1G BIT Winbond TW SPI |
FLASH - NAND (SLC) Memory IC 1Gbit SPI - Quad I/O 104 MHz 7 ns 8-WSON (8x6)
|
|
|
|
PF48F4400P0VBQEK NEW AND ORIGINAL STOCK |
FLASH - NOR (MLC) Memory IC 512Mbit CFI 52 MHz 110 ns 64-LBGA (11x13)
|
|
|
|
DSPIC30F3011-30I/PT Flash Memory IC NEW AND ORIGINAL STOCK |
dsPIC dsPIC™ 30F Microcontroller IC 16-Bit 30 MIPs 24KB (8K x 24) FLASH 44-TQFP (10x10)
|
|
|
|
IR2110PBF NEW AND ORIGINAL STOCK |
Half-Bridge Gate Driver IC Non-Inverting 14-DIP
|
|
|
|
S25FL032P0XMFI010 SOP8 104MHz Flash Memory IC Chip |
FLASH - NOR Memory IC 32Mbit SPI - Quad I/O 104 MHz 8-SOIC
|
|
|
|
W25Q80DVSNIG Serial Flash Chip 3V 8M BIT Dual Quad Spi Memory Integrated Circuit |
FLASH - NOR Memory IC 8Mbit SPI - Quad I/O 104 MHz 8-SOIC
|
|
|
|
MOS Tube Field Effect Single-Chip Drive PWM Controlador Module IRF520 |
N-Channel 100 V 9.2A (Tc) 60W (Tc) Through Hole TO-220AB
|
|
|
|
MAX485, RS485 Module TTL To RS-485 Module TTL To 485 |
1/1 Transceiver Half RS422, RS485 8-uMAX/uSOP
|
|
|
|
SKY65336-11 NEW AND ORIGINAL STOCK |
RF Front End 2.4GHz ISM 28-MCM (8x8)
|