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LT8610AIMSE#TRPBF

Analog Devices · DC-DC Converters · MSOP-16-EP

LT8610AIMSE#TRPBF from Analog Devices, in a MSOP-16-EP. 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 SYNC input Ground this pin for low ripple Burst Mode operation at low loads, tie it to a clock source to synchronize to an external frequency, and apply a DC voltage of 3V or higher or tie it to INTVCC for pulse-skipping mode; do not float it.
2 TR/SS bidirectional A TR/SS voltage below 0.97V makes the regulator track FB to this pin, an internal 2.2µA pull-up from INTVCC sets the output ramp rate via a capacitor, and the pin is pulled to ground through an internal 230Ω MOSFET during shutdown and faults, so use a series resistor when driven from a low-impedance source.
3 RT passive A resistor tied between RT and ground sets the switching frequency.
4 EN/UV input The regulator is shut down when this pin is low and active when high, with a hysteretic threshold of 1.00V rising and 0.96V falling, and it must be tied to VIN if the shutdown feature is not used.
5 VIN power_in Supplies the internal circuitry and the internal top-side power switch; pins 5 and 6 must be tied together and locally bypassed with the input capacitor positive terminal placed close to these pins.
6 VIN power_in Supplies the internal circuitry and the internal top-side power switch; pins 5 and 6 must be tied together and locally bypassed with the input capacitor positive terminal placed close to these pins.
7 NC unconnected No connect; this pin is not connected to internal circuitry.
8 GND power_in Return path of the internal bottom-side switch that must be tied together with the other ground pins, placed close to the negative terminal of the input capacitor and the exposed pad.
9 SW power_out Output of the internal power switches; pins 9, 10 and 11 must be tied together and connected to the inductor and boost capacitor, with the node kept small on the PCB.
10 SW power_out Output of the internal power switches; pins 9, 10 and 11 must be tied together and connected to the inductor and boost capacitor, with the node kept small on the PCB.
11 SW power_out Output of the internal power switches; pins 9, 10 and 11 must be tied together and connected to the inductor and boost capacitor, with the node kept small on the PCB.
12 BST power_out Provides a drive voltage higher than the input voltage to the top-side power switch and requires a 0.1µF boost capacitor placed as close as possible to the IC.
13 INTVCC power_out Internal 3.4V regulator bypass with a maximum output current of 20mA; do not load it externally and decouple it with at least a 1µF low ESR ceramic capacitor placed close to the IC.
14 BIAS power_in The internal regulator draws current from BIAS instead of VIN when BIAS is above 3.1V, and for output voltages of 3.3V and above it should be tied to VOUT (use a 1µF bypass if tied to another supply).
15 PG output Open-drain output that remains low until FB is within ±9% of the final regulation voltage with no fault conditions, and is valid when VIN is above 3.4V regardless of the EN/UV state.
16 FB input Regulates the FB pin to 0.970V; connect the feedback resistor divider tap here and a phase lead capacitor, typically 4.7pF to 10pF, between FB and VOUT.
17 GND power_in Exposed pad is ground and must be soldered to the PCB to lower the thermal resistance.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package MSOP-16-EP
Category Power Management (PMIC)
Pins 17

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Feedback Reference Voltage VFB 0.964 0.97 0.976 V VIN = 6V, ILOAD = 0.5A 3
Feedback Reference Voltage (full operating temperature range, l) VFB 0.958 0.97 0.982 V VIN = 6V, ILOAD = 0.5A; l = full operating temperature range 3
Feedback Voltage Line Regulation 0.004 0.02 %/V VIN = 4V to 42V, ILOAD = 1A 3
Feedback Pin Input Current -20 20 nA VFB = 1V 3
INTVCC Voltage VINTVCC 3.23 3.4 3.57 V ILOAD = 0mA, VBIAS = 0V 3
INTVCC Voltage VINTVCC 3.25 3.29 3.35 V ILOAD = 0mA, VBIAS = 3.3V 3
INTVCC Undervoltage Lockout 2.5 2.6 2.7 V 3
Minimum Input Voltage 2.9 3.4 V (Note 4), l 3
VIN Quiescent Current IQ 1 3 µA VEN/UV = 0V, l 3
VIN Quiescent Current IQ 1.7 4 µA VEN/UV = 2V, Not Switching, VSYNC = 0V, l 3
VIN Quiescent Current IQ 0.26 0.5 mA VEN/UV = 2V, Not Switching, VSYNC = 2V 3
VIN Current in Regulation IIN 24 50 µA VOUT = 0.97V, VIN = 6V, Output Load = 100µA (LT8610A), l 3
VIN Current in Regulation IIN 210 350 µA VOUT = 0.97V, VIN = 6V, Output Load = 1mA (LT8610A), l 3
Minimum On-Time tON(MIN) 15 30 45 ns ILOAD = 1A, SYNC = 0V, l 3
Minimum Off-Time tOFF(MIN) 95 125 ns 3
Oscillator Frequency fSW 180 210 240 kHz RT = 221k, ILOAD = 1A, l 4
Oscillator Frequency fSW 665 700 735 kHz RT = 60.4k, ILOAD = 1A, l 4
Oscillator Frequency fSW 1.85 2 2.15 MHz RT = 18.2k, ILOAD = 1A, l 4
Top Power NMOS Current Limit ILIM 5 6.7 8 A LT8610A, l 4
Bottom Power NMOS Current Limit ILIM 3.4 4.3 5.4 A VINTVCC = 3.4V 4
SW Leakage Current ISW -1.5 1.5 µA VIN = 42V, VSW = 0V, 42V 4
EN/UV Pin Threshold VEN/UV 0.94 1 1.06 V EN/UV Rising, l 4
EN/UV Pin Current IEN/UV -20 20 nA VEN/UV = 2V 4
PG Upper Threshold Offset from VFB 6 9 12 % VFB Falling, l 4
PG Lower Threshold Offset from VFB -12 -9 -6 % VFB Rising, l 4
PG Leakage -40 40 nA VPG = 3.3V 4
PG Pull-Down Resistance 680 2000 Ω VPG = 0.1V, l 4
SYNC Threshold VSYNC 0.8 1.1 1.4 V SYNC Falling 4
SYNC Threshold VSYNC 1.6 2 2.4 V SYNC Rising 4
SYNC Pin Current ISYNC -40 40 nA VSYNC = 6V 4
TR/SS Source Current ITR/SS 1 2 3.2 µA l 4
Top Power NMOS On-Resistance RDS(ON) 120 mΩ ISW = 1A 4
Bottom Power NMOS On-Resistance RDS(ON) 65 mΩ VINTVCC = 3.4V, ISW = 1A 4
EN/UV Pin Hysteresis 40 mV 4
PG Hysteresis 1.3 % 4
TR/SS Pull-Down Resistance 230 Ω Fault Condition, TR/SS = 0.1V 4
BIAS Pin Current Consumption IBIAS 9 mA VBIAS = 3.3V, ILOAD = 1A, 2MHz 3
VIN, EN/UV, PG Voltage VIN 42 V 2
BIAS Voltage VBIAS 30 V 2
BST Pin Above SW Pin VBST-SW 4 V 2
FB, TR/SS, RT, INTVCC Voltage 4 V 2
VOUT, SYNC Voltage 6 V 2
Operating Junction Temperature Range (LT8610AI) TJ -40 125 °C Note 2 2
Storage Temperature Range TSTG -65 150 °C 2
Thermal Resistance, Junction to Ambient θJA 40 °C/W 16-Lead MSE package 2
Thermal Resistance, Junction to Case (Exposed Pad) θJC(PAD) 10 °C/W 16-Lead MSE package 2

CAD (KiCad official)

  • Symbol: LT8610AIMSE#TRPBF
  • Footprint: Package_SO:MSOP-16-1EP_3x4.039mm_P0.5mm_EP1.651x2.845mm
  • 3D model: MSOP-16-EP (KiCad packages3D, STEP)
  • 3D model files: lt8610aimse-trpbf-etched.step / lt8610aimse-trpbf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lt8610aimse-trpbf.step / lt8610aimse-trpbf.glb are the bare package body.

Provenance

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

  • Datasheet: Analog Devices datasheet (26 pp, sha256 a7328de0512d031c, retrieved 2026-10-21, tier: lcsc)
  • 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