LM2621 DC-DC 2005 Rleased Released this version product grou
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LM2621 DC-DC
2005
Rleased Released this version product group meet deadline PUBLISHED Cleaned format layout match specs content changes Converted nat2000 DTD. book. voltage number changed shutdown division applications section. changed tape reel info order. table. loaded composed same. latest edition from Leanne. composed with artwork. latest copy from composed only with typ.curves. waiting supplied load.
DC-DC
2621
Musiri Shrivathsan
19980701
24060
DS100934
LM2621
LM2621
DC-DC
LM2621 DC-DC 1.2V 1.24V LM2621 0.17 MOSFET LM2621 LM2621 2MHz BiCMOS LM2621 Mini SO-8 1.09mm
Mini SO-8 1.09mm 2MHz 1.2V 1.24V 0.17 MOSFET (Typ
PCMCIA TFT/LCD 3.3V 5.0V 2Way
20050321
National Semiconductor Corporation
DS100934-06-JP
LM2621
Mini SO-8 (MM) Package
View
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LM2621
(Note
)(Note (Note
500mW
BOOTVDDENFB FREQ (Note TJmax (Note
0.5V 14.5V 0.5V
(Note
FBEN BOOT (TA) 2.5V
VOUT 3.3V
Note Note
TJmax( PDmax (TJmax TA)/
Note Note Note Note Note Note
100pF 1.5k (SW) 1.5kV VOUT VOUT (NOMINAL) VDDBOOTSW FREQ VEN_HI VEN_LO
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LM2621
FREQ SGND BOOT PGND (VDD) LM2621 MOSFET MOSFET
Efficiency Load Current VOUT 5.0V Efficiency Load Current VOUT 3.3V
Temperature
Temperature
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LM2621
Temperature
VIN_ST Load Current VOUT 3.3V
Switching Frequency
Peak Inductor Current Load Current
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LM2621
Maximum Load Current Input Voltage
LM2621 DC-DC MOSFET MSOP DC-DC 1.2V 1.24V LM2621 1.1V 0.65V
FIGURE Functional Diagram
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LM2621
LM2621 300kHz 2MHz LM2621 MOSFET MOSFET LM2621 LM2621 LM2621 Figure
FIGURE Typical Step-Up Regulator Waveforms
LM2621 1.1V (VDD 2.5V MOSFET 0.65V
2MHz
(Typ 2.85A MOSFET
LM2621 0.15VDD 0.7VDD
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LM2621
1.24V /[(VOUT/ 1.24) 150k 39pF (CF1) VOUT 30mV
LM2621 Peak Inductor Current Load Current 100m Table
(VOUT) 2.5V 5.0V VOUT VOUT 2.5V (VIN) VOUT BOOT
Table
FREQ (RFQ) Switchng Frequency 300kHz 2MHz
Table
TABLE Suggested Manufacturers List
LM2621 PGND SGND (RF1RF2 CF1) VOUT
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LM2621
EXAMPLE 5V/0.5A Step-Up Regulator
National Vishay/Sprague Vishay/Sprague Motorola Coilcraft
LM2621MM 595D226X06R3B2T, Tantalum 595D686X0010C2T, Tantalum MBRS140T3 DT1608C-682
EXAMPLE Tall 5V/0.2A Step-Up Regulator Profile Applications
National Vishay/Sprague Vishay/Sprague Motorola Vishay/Dale
LM2621MM 592D156X06R3B2T, Tantalum 592D336X06R3C2T, Tantalum MBRS140T3 ILS-3825-03
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LM2621
EXAMPLE 3.3V/0.5A SEPIC Regulator
National Vishay/Sprague Vishay/Sprague Motorola Coilcraft Vishay/Vitramon
LM2621MM 595D226X06R3B2T, Tantalum 595D686X0010C2T, Tantalum MBRS140T3 DT1608C-682 VJ1210Y105M, Ceramic
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LM2621 DC-DC
inches (millimeters)
8-Lead Mini SO-8 (MM) Package Number MUA08A Order Numbers, refer table "Ordering Information" section this document.
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CSP-9-111C2(Customer Products Stewardship Specification) CSP-9-111S2(Banned Substances Materials Interest Specification) CSP-9-111S2 RoHS
135-0042 2-17-16 TEL.(03)5639-7300
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