Data Brief AP64351 (Diodes) - 3

Request Datasheet AP64351 Thermal Resistance
(Note 6)
Symbol Parameter Rating Unit
θJA Junction to Ambient SO-8EP 45 °C/W θJC Junction to Case SO-8EP 5 °C/W Note: 6. Test condition for SO-8EP: Device mounted on FR-4 substrate, four-layer PC board, 2oz copper, with minimum recommended pad layout.
Recommended Operating Conditions
(Note 7) (At TA = +25°C, unless otherwise specified.)
Symbol Parameter Min Max Unit
VIN Supply Voltage 3.8 40 V VOUT Output Voltage 0.8 VIN V TA Operating Ambient Temperature Range -40 +85 °C TJ Operating Junction Temperature Range -40 +125 °C Note: 7. The device function is not guaranteed outside of the recommended operating conditions.
Electrical Characteristics
(At TA = +25°C, VIN = 12V, unless otherwise specified. Min/Max limits apply across the recommended ambient temperature range, -40°C to +85°C, and input voltage range, 3.8V to 40V, unless otherwise specified.)
Symbol Parameter Test Conditions Min Typ Max Unit
ISHDN Shutdown Supply Current VEN = 0V — 1 5 μA IQ Quiescent Supply Current VEN = Floating, VFB = 1.0V — 22 — μA VIN Undervoltage Rising Threshold — — 3.5 3.7 V UVLO VIN Undervoltage Hysteresis — — 400 — mV RDS(ON)1 High-Side Power MOSFET On-Resistance (Note 8) — — 75 — mΩ RDS(ON)2 Low-Side Power MOSFET On-Resistance (Note 8) — — 45 — mΩ IPEAK_LIMIT HS Peak Current Limit (Note 8) — 4.25 5 5.75 A IVALLEY_LIMIT LS Valley Current Limit (Note 8) — — 5.5 — A IPFMPK PFM Peak Current Limit — — 750 — mA IZC Zero Cross Current Threshold — — 0 — mA fSW Oscillator Frequency — 510 570 630 kHz tON_MIN Minimum On-Time — — 100 — ns VFB Feedback Voltage CCM 792 800 808 mV VEN_H EN Logic High Threshold — — 1.18 1.25 V VEN_L EN Logic Low Threshold — 1.03 1.09 — V VEN = 1.5V — 5.5 — μA IEN EN Input Current VEN = 1V 1 1.5 2 μA tSS Soft-Start Time CSS = 10nF — 2 — ms TSD Thermal Shutdown (Note 8) — — 160 — °C THys Thermal Shutdown Hysteresis (Note 8) — — 25 — °C Note: 8. Compliance to the datasheet limits is assured by one or more methods: production test, characterization, and/or design. 3 of 5 AP64351 Databrief October 2019
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