SNVSB99C October 2019 – November 2020 LMR33640
PRODUCTION DATA
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
---|---|---|---|---|---|---|
SUPPLY VOLTAGE | ||||||
VIN | Minimum operating input voltage | 3.8 | V | |||
IQ | Non-switching input current; measured at VIN pin (2) | VFB = 1.2 V | 24 | 34 | µA | |
ISD | Shutdown quiescent current; measured at VIN pin | EN = 0 | 5 | 10 | µA | |
ENABLE | ||||||
VEN-VCC-H | EN input level required to turn on internal LDO | Rising threshold | 1 | V | ||
VEN-VCC-L | EN input level required to turn off internal LDO | Falling threshold | 0.3 | V | ||
VEN-H | EN input level required to start switching | Rising threshold | 1.2 | 1.231 | 1.26 | V |
VEN-HYS | Hysteresis below VEN-H | Hysteresis below VEN-H; falling | 100 | mV | ||
ILKG-EN | Enable input leakage current | VEN = 3.3 V | 0.2 | nA | ||
INTERNAL SUPPLIES | ||||||
VCC | Internal LDO output voltage appearing at the VCC pin | 6 V ≤ VIN ≤ 36 V | 4.75 | 5 | 5.25 | V |
VBOOT-UVLO | Bootstrap voltage undervoltage lock-out threshold(3) | 2.2 | V | |||
VOLTAGE REFERENCE (FB PIN) | ||||||
VFB | Feedback voltage; ADJ option | 0.985 | 1 | 1.015 | V | |
IFB | Current into FB pin; ADJ option | FB = 1 V | 0.2 | 50 | nA | |
CURRENT LIMITS | ||||||
ISC | High-side current limit | LMR33640 | 4.8 | 5.5 | 6.2 | A |
ILIMIT | Low-side current limit | LMR33640 | 3.9 | 4.5 | 5 | A |
IPEAK-MIN | Minimum peak inductor current | LMR33640 | 0.824 | A | ||
IZC | Zero current detector threshold | -0.106 | A | |||
SOFT START | ||||||
tSS | Internal soft-start time | 2.9 | 4 | 6 | ms | |
POWER GOOD (PG PIN) | ||||||
VPG-HIGH-UP | Power-good upper threshold - rising | % of FB voltage | 105% | 107% | 110% | |
VPG-HIGH-DN | Power-good upper threshold - falling | % of FB voltage | 103% | 105% | 108% | |
VPG-LOW-UP | Power-good lower threshold - rising | % of FB voltage | 92% | 94% | 97% | |
VPG-LOW-DN | Power-good lower threshold - falling | % of FB voltage | 90% | 92% | 95% | |
tPG | Power-good glitch filter delay(1) | 60 | 170 | µs | ||
RPG | Power-good flag RDSON | VIN = 12 V, VEN = 4 V | 76 | 150 | Ω | |
VEN = 0 V | 35 | 60 | ||||
VIN-PG | Minimum input voltage for proper PG function | 50-µA, EN = 0 V | 2 | V | ||
VPG | PG logic low output | 50-µA, EN = 0 V, VIN = 2V | 0.2 | V | ||
OSCILLATOR | ||||||
ƒSW | Switching frequency | 860 | 1000 | 1140 | kHz | |
ƒSW | Switching frequency | 340 | 400 | 460 | kHz | |
MOSFETS | ||||||
RDS-ON-HS | High-side MOSFET ON-resistance | DDA package | 95 | 160 | mΩ | |
RDS-ON-LS | Low-side MOSFET ON-resistance | DDA package | 66 | 110 | mΩ |