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LM2700 датащи(PDF) 5 Page - Texas Instruments |
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LM2700 датащи(HTML) 5 Page - Texas Instruments |
5 / 26 page LM2700 www.ti.com SNVS152C – MAY 2001 – REVISED MARCH 2013 Electrical Characteristics Specifications in standard type face are for TJ = 25°C and those with boldface type apply over the full Operating Temperature Range (TJ = −40°C to +125°C) Unless otherwise specified. VIN =2.2V and IL = 0A, unless otherwise specified. Min Typ Max Symbol Parameter Conditions Units (1) (2) (1) IQ Quiescent Current FB = 2.2V (Not Switching) 1.2 2 mA FSLCT = 0V FB = 2.2V (Not Switching) 1.3 2 mA FSLCT = VIN VSHDN = 0V 5 20 µA VFB Feedback Voltage 1.2285 1.26 1.2915 V ICL (3) Switch Current Limit VIN = 2.7V (4) 2.55 3.6 4.3 A %VFB/ΔVIN Feedback Voltage Line 2.2V ≤ VIN ≤ 12.0V 0.02 0.07 %/V Regulation IB FB Pin Bias Current 0.5 40 nA (5) VIN Input Voltage Range 2.2 12 V gm Error Amp Transconductance ΔI = 5µA 40 155 290 µmho AV Error Amp Voltage Gain 135 V/V DMAX Maximum Duty Cycle FSLCT = Ground 78 85 % DMIN Minimum Duty Cycle FSLCT = Ground 15 % FSLCT = VIN 30 fS Switching Frequency FSLCT = Ground 480 600 720 kHz FSLCT = VIN 1 1.25 1.5 MHz ISHDN Shutdown Pin Current VSHDN = VIN 0.008 1 µA VSHDN = 0V −0.5 −1 IL Switch Leakage Current VSW = 18V 0.02 20 µA RDSON Switch RDSON (6) VIN = 2.7V, ISW = 2A 80 150 m Ω ThSHDN SHDN Threshold Output High 0.9 0.6 V Output Low 0.6 0.3 V UVP On Threshold 1.95 2.05 2.2 V Off Threshold 1.85 1.95 2.1 V θJA Thermal Resistance(7) TSSOP, package only 150 °C/W WSON, package only 45 (1) All limits specified at room temperature (standard typeface) and at temperature extremes (bold typeface). All room temperature limits are 100% tested or ensured through statistical analysis. All limits at temperature extremes are ensured via correlation using standard Statistical Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL). (2) Typical numbers are at 25°C and represent the most likely norm. (3) Duty cycle affects current limit due to ramp generator. (4) Current limit at 0% duty cycle. See Typical Performance Characteristics section for Switch Current Limit vs. VIN (5) Bias current flows into FB pin. (6) Does not include the bond wires. Measured directly at the die. (7) Refer to Texas Instrument's packaging website for more detailed thermal information and mounting techniques for the WSON and TSSOP packages. Copyright © 2001–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM2700 |
Аналогичный номер детали - LM2700_15 |
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Аналогичное описание - LM2700_15 |
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