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LTC4368CMS-1#PBF

Analog Devices · Pre-ordered Chips · MSOP-10

LTC4368CMS-1#PBF from Analog Devices, in a MSOP-10. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VIN power_in Power supply input with a maximum protection range of -40V to 100V and an operating range of 2.5V to 60V; it can be hot swapped and has a 2.2V UVLO.
2 UV input Undervoltage comparator input with a 0.5V falling threshold and 25mV of hysteresis, set by an external resistive divider; if unused and VIN is below 80V, connect it to VIN through a 510k resistor.
3 OV input Overvoltage comparator input with a 0.5V rising threshold and 25mV of hysteresis, set by an external resistive divider; connect to GND if unused.
4 RETRY input Retry or latch-off selection input that latches off the MOSFETs after a forward overcurrent fault when tied to ground, or sets a 5.5ms/nF retry delay when connected to a capacitor; absolute maximum rating is -0.3V to 5V, and it should be left unconnected if unused.
5 GND power_in Device ground.
6 SHDN input Shutdown control input where high enables the gate charge pump and low pulls GATE down with a 90µA sink and places the part in 5µA low-current mode; SHDN must be kept below 80V if VIN goes above 80V.
7 FAULT output High-voltage open-drain fault indication output, pulled low on a voltage or current fault, when SHDN is low, or when VIN is below VIN(UVLO), and requiring a pull-up resistor; leave unconnected if unused.
8 VOUT input Output voltage sense input used as the gate charge pump reference and by the reverse current fault comparators, which require VOUT to rise above its 2.2V UVLO; place at least 1µF from VOUT to GND and connect a current sense resistor between VOUT and SENSE.
9 SENSE input Overcurrent sense input that detects forward faults at 50mV and reverse faults at -50mV (LTC4368-1) or -3mV (LTC4368-2) across the sense resistor between SENSE and VOUT; connect to VOUT if unused.
10 GATE output Gate drive output for external N-channel MOSFETs with a 35µA internal pull-up and up to 13.1V of enhancement, pulled just below the lower of VIN or VOUT when off.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package MSOP-10
Category Interface ICs
Pins 10

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply Voltage VIN (absolute maximum) VIN -40 100 V 2
Input Voltage UV, SHDN (absolute maximum, Note 3) UV, SHDN -0.3 80 V 2
Input Voltage OV (absolute maximum, Note 3) OV -0.3 20 V 2
Input Voltage RETRY (absolute maximum, Note 3) RETRY -0.3 5 V 2
Input Voltage VOUT, SENSE (absolute maximum) VOUT, SENSE -10 80 V 2
VOUT to SENSE (absolute maximum) VOUT to SENSE -10 10 V 2
VIN to VOUT (absolute maximum) VIN to VOUT -60 100 V 2
Output Voltage FAULT (absolute maximum, Note 3) FAULT -0.3 80 V 2
Output Voltage GATE (absolute maximum; printed max is VIN + 14V, not a fixed number) GATE -40 V Printed upper limit: VIN + 14V 2
Input Current RETRY, UV, OV, SHDN, FAULT (absolute maximum) RETRY, UV, OV, SHDN, FAULT -1 mA 2
Operating Ambient Temperature Range, LTC4368C 0 70 °C LTC4368C 2
Storage Temperature Range -65 150 °C 2
Maximum Junction Temperature (TJMAX) TJMAX 150 °C 2
VIN Input Voltage: Operating Range 2.5 60 V 3
VIN Input Voltage: Protection Range -40 100 V 3
Input Supply Undervoltage Lockout VIN(UVLO) 1.8 2.2 2.4 V VIN Rising 3
Input Supply Current: On IVIN 30 100 µA SHDN = 2.5V, SENSE = VOUT = VIN 3
Input Supply Current: Off IVIN 5 25 µA SHDN = 0V, SENSE = VOUT = VIN 3
Reverse Input Supply Current IVIN(R) -1.5 -2.5 mA VIN = -40V, SENSE = VOUT = 0V 3
VOUT Undervoltage Lockout VOUT(UVLO) 1.8 2.2 2.4 V VOUT Rising, VOUT, SENSE = 100mV, VIN = 12V 3
VOUT Undervoltage Lockout Delay tVOUT(UVLO) 40 120 280 µs VIN = 12V, VOUT:0V→12V, VOUT, SENSE = 100mV 3
VOUT Input Current: On IVOUT 50 125 µA SHDN = 2.5V, SENSE = VOUT = VIN 3
VOUT Input Current: Off IVOUT 3 20 µA SHDN = 0V, SENSE = VOUT = VIN 3
VOUT Input Current: Reverse IVOUT 20 50 µA VIN = -40V, SENSE = VOUT = 0V 3
SENSE Input Current: On ISENSE 1.2 2 µA SHDN = 2.5V, SENSE = VOUT = VIN 3
SENSE Input Current: Off ISENSE 0.1 2 µA SHDN = 0V, SENSE = VOUT = VIN 3
SENSE Input Current: Reverse ISENSE 1 10 µA VIN = -40V, SENSE = VOUT = 0V 3
Overcurrent Fault Threshold, Forward (SENSE, VOUT) ΔVSENSE,F 40 50 60 mV VOUT = VIN 3
Overcurrent Fault Threshold, Forward (SENSE, VOUT) ΔVSENSE,F 30 50 70 mV VIN = 12V, VOUT = 0V 3
Overcurrent Fault Threshold, Reverse (SENSE, VOUT), LTC4368-1 ΔVSENSE,R -42 -50 -58 mV LTC4368-1 VOUT = VIN 3
Reverse Overcurrent Re-Enable Turn-On Threshold (VIN, VOUT) ΔVRR 75 100 125 mV VIN = SENSE = 6V to 60V 3
Reverse Overcurrent Re-Enable Turn-On Threshold (VIN, VOUT) ΔVRR 20 50 125 mV VIN = SENSE = 2.5V to <6V 3
Gate Drive (GATE, VOUT) ΔVGATE 3 4 5.5 V VIN = 2.5V, IGATE = 0µA, -1µA 4
Gate Drive (GATE, VOUT) ΔVGATE 7.2 8.7 10.8 V VIN = 5V, IGATE = 0µA, -1µA 4
Gate Drive (GATE, VOUT) ΔVGATE 10 11 13.1 V VIN = 12V to 60V, IGATE = 0µA, -1µA 4
Gate Pull Up Current IGATE(UP) -20 -35 -60 µA GATE = 15V, VIN = 12V 4
Gate Slow Pull Down Current IGATE(SLOW) 40 90 160 µA GATE = 20V, VIN = 12V 4
Gate Fast Pull Down Current IGATE(FAST) 30 60 90 mA GATE = 20V, SENSE = VIN = 12V 4
Gate Fast Turn Off Delay tD(FAST) 2 6 µs CGATE = 2.2nF: UV, OV Fault 4
Gate Slow Turn Off Delay tD(SLOW) 150 275 575 µs CGATE = 2.2nF, SHDN Falling, VIN = 12V 4
Gate Turn-On Delay Time tD(ON) 22 32 45 ms VIN = 12V, Power Good to ΔVGATE > 0V 4
Overcurrent Fault Propagation Delay tp(GATE) 3 8 18 µs CGATE = 2.2nF, Overcurrent Fault to ∆VGATE = 0V; SENSE, VOUT: 0 to +100mV, or 0 to -100mV (LTC4368-1) 4
UV Input Threshold Voltage VUV 492.5 500 507.5 mV UV Falling 4
OV Input Threshold Voltage VOV 492.5 500 507.5 mV OV Rising 4
UV Input Hysteresis VUVHYST 20 25 32 mV 4
OV Input Hysteresis VOVHYST 20 25 32 mV 4
UV, OV Leakage Current ILEAK -10 10 nA V = 0.5V, VIN = 60V 4
UV, OV Fault Propagation Delay tFAULT 1 2 µs Overdrive = 50mV, VIN = 12V 4
SHDN Input Threshold VSHDN 0.4 0.75 1.2 V SHDN Falling 4
SHDN Input Current ISHDN -15 15 nA SHDN = 10V, VIN = 60V 4
Delay Coming Out of Shutdown Mode tSTART 400 800 1400 µs SHDN Rising to FAULT, VIN = 12V 4
SHDN To FAULT Asserted tSHDN(F) 1.5 3 µs VIN = 12V 4
FAULT Output Voltage Low VOL 0.15 0.4 V IFAULT = 500µA, VIN = 12V 4
FAULT Leakage Current IFAULT -20 20 nA FAULT = 5V, VIN = 60V 4
Configuration Threshold for GATE Latch-Off VRETRY 0.5 1 1.5 V RETRY Falling to ΔIRETRY > 2µA, VIN = 12V 4
Output Current for RETRY Timer IRETRY 2.5 3.5 4.5 µA RETRY = 2V, VIN = 12V 4
Output Current for RETRY Timer IRETRY -10 -17 -25 µA RETRY = 0V, VIN = 12V 4
Forward Overcurrent Cool-Down Delay tRETRY 80 120 150 ms FAULT Asserted to FAULT Released, CRETRY = 22nF; SENSE = VOUT = VIN = 12V 4
Thermal Resistance Junction-to-Ambient, MS10 (MSOP) package θJA 160 °C/W MS10 package 2

CAD (KiCad official)

  • Symbol: LTC4368CMS-1#PBF
  • Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
  • 3D model: MSOP-10 (KiCad packages3D, STEP)
  • 3D model files: ltc4368cms-1-pbf-etched.step / ltc4368cms-1-pbf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ltc4368cms-1-pbf.step / ltc4368cms-1-pbf.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Analog Devices datasheet (22 pp, sha256 8daaf750c3f6fa15, retrieved 2026-10-31, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF