SNVS153F May 2001 – September 2016 LM2698
PRODUCTION DATA.
| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| VIN | –0.3 | 12 | V | |
| SW voltage | –0.3 | 18 | V | |
| FB voltage | –0.3 | 7 | V | |
| VC voltage | 0.965 | 1.565 | V | |
| SHDN voltage(2) | –0.3 | 7 | V | |
| FSLCT(2) | –0.3 | 12 | V | |
| Power dissipation(3) | Internally limited | °C | ||
| Lead temperature | 300 | °C | ||
| Vapor phase temperature (60 s) | 215 | °C | ||
| Infrared temperature (15 s) | 220 | °C | ||
| Junction temperature, TJ | 150 | °C | ||
| Storage temperature, Tstg | –65 | 150 | °C | |
| VALUE | UNIT | |||
|---|---|---|---|---|
| V(ESD) | Electrostatic discharge | Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) | ±2000 | V |
| Charged-device model (CDM), per JEDEC specification JESD22-C101(2) | ±200 | |||
| MIN | NOM | MAX | UNIT | |
|---|---|---|---|---|
| Supply voltage | 2.2 | 12 | V | |
| SW voltage | 0 | 17.5 | V | |
| Operating junction temperature(1) | –40 | 125 | °C |
| THERMAL METRIC(1) | LM2698 | UNIT | |
|---|---|---|---|
| DGK (VSSOP) | |||
| 8 PINS | |||
| RθJA | Junction-to-ambient thermal resistance | 142.5 | °C/W |
| RθJC(top) | Junction-to-case (top) thermal resistance | 49.7 | °C/W |
| RθJB | Junction-to-board thermal resistance | 69.5 | °C/W |
| ψJT | Junction-to-top characterization parameter | 4 | °C/W |
| ψJB | Junction-to-board characterization parameter | 67.8 | °C/W |
| RθJC(bot) | Junction-to-case (bottom) thermal resistance | — | °C/W |
| PARAMETER | TEST CONDITIONS | MIN(1) | TYP(2) | MAX(1) | UNIT | ||
|---|---|---|---|---|---|---|---|
| IQ | Quiescent current | FB = 0 V (not switching) | TJ = 25°C | 1.3 | mA | ||
| TJ = –40°C to 125°C | 2 | ||||||
| VSHDN = 0 V | TJ = 25°C | 5 | µA | ||||
| TJ = –40°C to 125°C | 10 | ||||||
| VFB | Feedback voltage | TJ = 25°C | 1.26 | V | |||
| TJ = –40°C to 125°C | 1.23 | 1.29 | |||||
| ICL | Switch current limit | VIN = 2.7 V(3) | TJ = 25°C | 1.9 | A | ||
| TJ = –40°C to 125°C | 1.35 | 2.4 | |||||
| %VFB/ΔVIN | Feedback voltage line regulation | 2.2 V ≤ VIN ≤ 12 V | TJ = 25°C | 0.013% | V | ||
| TJ = –40°C to 125°C | 0.1% | ||||||
| IB | FB pin bias current(4) | TJ = 25°C | 0.5 | nA | |||
| TJ = –40°C to 125°C | 20 | ||||||
| VIN | Input voltage range | TJ = –40°C to 125°C | 2.2 | 12 | V | ||
| gm | Error amp transconductance | ΔI = 5 µA | TJ = 25°C | 135 | µmho | ||
| TJ = –40°C to 125°C | 40 | 290 | |||||
| AV | Error amp voltage gain | 120 | V/V | ||||
| DMAX | Maximum duty cycle | FSLCT = Ground | TJ = 25°C | 85% | |||
| TJ = –40°C to 125°C | 78% | ||||||
| DMIN | Minimum duty cycle | FSLCT = Ground | 15% | ||||
| FSLCT = VIN | 30% | ||||||
| fS | Switching frequency | FSLCT = Ground | TJ = 25°C | 600 | kHz | ||
| TJ = –40°C to 125°C | 480 | 720 | |||||
| FSLCT = VIN | TJ = 25°C | 1.25 | MHz | ||||
| TJ = –40°C to 125°C | 1 | 1.5 | |||||
| ISHDN | Shutdown pin current | VSHDN = VIN | TJ = 25°C | 0.01 | µA | ||
| TJ = –40°C to 125°C | 0.1 | ||||||
| VSHDN = 0 V | TJ = 25°C | –0.5 | |||||
| TJ = –40°C to 125°C | –1 | ||||||
| IL | Switch leakage current | VSW = 18 V | TJ = 25°C | 0.01 | µA | ||
| TJ = –40°C to 125°C | 3 | ||||||
| RDS(ON) | Switch RDS(ON) | VIN = 2.7 V, ISW = 1 A | TJ = 25°C | 0.2 | Ω | ||
| TJ = –40°C to 125°C | 0.4 | ||||||
| THSHDN | SHDN threshold voltage | Output high | TJ = 25°C | 0.6 | V | ||
| TJ = –40°C to 125°C | 0.9 | ||||||
| Output low | TJ = 25°C | 0.6 | |||||
| TJ = –40°C to 125°C | 0.3 | ||||||
| UVP | On threshold | TJ = 25°C | 2.05 | V | |||
| TJ = –40°C to 125°C | 1.95 | 2.2 | |||||
| Off threshold | TJ = 25°C | 1.95 | V | ||||
| TJ = –40°C to 125°C | 1.85 | 2.1 | |||||
| VOUT = 8 V | fS = 600 kHz |
| 600 kHz | Non-Switching |
| 1.25 MHz | Non-Switching |
Figure 7. Iq(SHDN) vs VIN
Figure 9. Switching Frequency vs VIN (600 kHz)
| VIN = 3.3 V | VOUT = 8 V |
| VOUT = 8 V | fS = 1.25 MHz |
| 600 kHz | Switching |
| 1.25 MHz | Switching |
Figure 8. RDS(ON) vs VIN
Figure 10. Switching Frequency vs VIN (1.25 MHz)