LM2623AMM

• Good benefits in a wide load range
• Very low output voltage ripple
• Small, miniature SO-8 package (half of the standard 8-pin SO package footprint)
• 1.09 mm package height
• Switching frequency up to 2 MHz
• Operating voltage from 0.8 V to 14 V
• It is a starting voltage of 1.1V
• Adjustable output voltage from 1.24V - 14V
• Up to 2A load current at low output voltage
• 0.17 Internal MOSFETs
• Up to 90% regulator efficiency
• 80μA Typical Operating Current (to V DD Power Pin)
• Available in a 4× 4mm heat-resistant enhanced LLP package option

illustrate

The LM2623 is a high-efficiency, general-purpose, step-up DC-DC switch for battery-powered and low-input voltage system regulators. It accepts an input voltage of 0.8 volts and converts 14 to regulate the output voltage between 1.24 and 14 volts. Efficiency of up to 90% can be achieved with LM2623.

To accommodate the number of applications, the LM2623 allows designers to vary the output voltage, operating frequency (300kHz to 2 MHz), and duty cycle (17% to 90%) to optimize device performance. The selected value can be fixed or can be ratio with battery voltage or input/output voltage. The LM2623 uses a very simple on/off supervision mode to produce good efficiency and stable operation over a wide operating range. It usually reaches the limit of stability (pulse frequency modulation) when skipping the switching cycle regulation.

Note: Please read the sections of this datasheet on the "Nonlinear Effects" and "Selecting the Right Complement C3 Capacitors" sub-design process so that any design challenges related to this part can be considered for the front-plate design/layout completion.

Alternative solutions, see also: LM2700, LM2622, LM2731, LM2733, LM2621 and.

apply

• camera, pager and mobile phone
• handheld computer, handheld computer, GPS device
• White LED driver, TFT or scan for LCD display
• Flash programming
• Handheld instrument
• 1, 2, 3 or 4 alkaline battery systems
• 1, 2 or 3 cell lithium-ion battery systems