Datasheet MAX16956 (Maxim) - 3
| Manufacturer | Maxim |
| Description | 36V, 300mA, Mini Buck Converter with 1.1µA IQ |
| Pages / Page | 16 / 3 — Electrical Characteristics (continued). PARAMETER. SYMBOL. CONDITIONS. … |
| File Format / Size | PDF / 1.9 Mb |
| Document Language | English |
Electrical Characteristics (continued). PARAMETER. SYMBOL. CONDITIONS. MIN. TYP. MAX. UNITS. RESET OUTPUT (RESET). LOGIC LEVELS
Model Line for this Datasheet
Text Version of Document
MAX16956 36V, 300mA, Mini Buck Converter with 1.1µA IQ
Electrical Characteristics (continued)
(VSUP = VEN = 14V, VMODE = 0V, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C, unless otherwise noted.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
FB Line Regulation ΔVLINE 6V ≤ VSUP ≤ 36V 0.02 %/V High-Side DMOS RDSON RON,HS VBIAS = 5V, ILX = 200mA 1000 2200 mΩ Low-Side DMOS RDSON RON,LS VBIAS = 5V, ILX = 200mA 500 1200 mΩ DMOS High-Side Current-Limit Threshold IMAX 0.425 0.5 0.575 A DMOS High-Side Skip-Mode Peak-Current Threshold ISKIP 70 100 130 mA DMOS Low-Side Zero-Crossing Threshold IZX 40 mA DMOS Low-Side Negative Current-Limit Threshold INEG FPWM mode -0.320 A Soft-Start Ramp Time tSS 5.4 ms LX Rise Time tRISE,LX (Note 3) 6 ns Minimum On-Time tON_MIN 60 ns Maximum Duty Cycle DCMAX 97 % PWM Switching Frequency fSW 1.95 2.1 2.25 MHz Spread-Spectrum Range SS Spread-spectrum option only ±6 %
RESET OUTPUT (RESET)
V RESET Threshold THR_RES VOUT rising 90 92 94 %VOUT VTHF_RES VOUT falling 88 90 92 RESET Debounce tDEB 12 µs RESET High Leakage Current ILEAK,RES TA = +25°C 1 µA RESET Low Level VOUT,RES Sinking 1mA 0.4 V
LOGIC LEVELS
EN Input High Threshold VIH,EN 2.4 V EN Input Low Threshold VIL,EN 0.4 V EN Input Current IIN,EN 0.1 µA MODE Input High Threshold VIH,MODE 1.4 V MODE Input Low Threshold VIL,MODE 0.4 V MODE Internal Pulldown RPD,MODE 1000 kΩ
THERMAL PROTECTION
Thermal Shutdown TSHDN (Note 3) +175 °C Thermal-Shutdown Hysteresis TSHDN,HYS (Note 3) +15 °C
Note 2:
Limits are 100% tested at TA = +25°C (and/or TA = +125°C). Limits over the operating temperature range and relevant supply voltage range are guaranteed by design and characterization.
Note 3:
Guaranteed by design; not production tested.
Note 4:
When the typical minimum on-time of 80ns is violated, the device skips pulses. www.maximintegrated.com Maxim Integrated │
3
Electrical Characteristics (continued)
(VSUP = VEN = 14V, VMODE = 0V, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C, unless otherwise noted.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
FB Line Regulation ΔVLINE 6V ≤ VSUP ≤ 36V 0.02 %/V High-Side DMOS RDSON RON,HS VBIAS = 5V, ILX = 200mA 1000 2200 mΩ Low-Side DMOS RDSON RON,LS VBIAS = 5V, ILX = 200mA 500 1200 mΩ DMOS High-Side Current-Limit Threshold IMAX 0.425 0.5 0.575 A DMOS High-Side Skip-Mode Peak-Current Threshold ISKIP 70 100 130 mA DMOS Low-Side Zero-Crossing Threshold IZX 40 mA DMOS Low-Side Negative Current-Limit Threshold INEG FPWM mode -0.320 A Soft-Start Ramp Time tSS 5.4 ms LX Rise Time tRISE,LX (Note 3) 6 ns Minimum On-Time tON_MIN 60 ns Maximum Duty Cycle DCMAX 97 % PWM Switching Frequency fSW 1.95 2.1 2.25 MHz Spread-Spectrum Range SS Spread-spectrum option only ±6 %
RESET OUTPUT (RESET)
V RESET Threshold THR_RES VOUT rising 90 92 94 %VOUT VTHF_RES VOUT falling 88 90 92 RESET Debounce tDEB 12 µs RESET High Leakage Current ILEAK,RES TA = +25°C 1 µA RESET Low Level VOUT,RES Sinking 1mA 0.4 V
LOGIC LEVELS
EN Input High Threshold VIH,EN 2.4 V EN Input Low Threshold VIL,EN 0.4 V EN Input Current IIN,EN 0.1 µA MODE Input High Threshold VIH,MODE 1.4 V MODE Input Low Threshold VIL,MODE 0.4 V MODE Internal Pulldown RPD,MODE 1000 kΩ
THERMAL PROTECTION
Thermal Shutdown TSHDN (Note 3) +175 °C Thermal-Shutdown Hysteresis TSHDN,HYS (Note 3) +15 °C
Note 2:
Limits are 100% tested at TA = +25°C (and/or TA = +125°C). Limits over the operating temperature range and relevant supply voltage range are guaranteed by design and characterization.
Note 3:
Guaranteed by design; not production tested.
Note 4:
When the typical minimum on-time of 80ns is violated, the device skips pulses. www.maximintegrated.com Maxim Integrated │
3
