Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Loads when you scroll to it. Unloads after 5 minutes in the background.
Download PDF
Contents

README

markdown

LTM4632EY#PBF

Analog Devices · DC-DC Converters · BGA-25

LTM4632EY#PBF from Analog Devices, in a BGA-25. 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
A1 VOUT2 power_out Power output pin of the Channel 2 switching regulator; apply the load between this pin and GND, with output decoupling placed directly at the pins.
A2 VIN power_in Power input pin; apply the 3.6V to 15V input between the VIN and GND pins with input decoupling placed directly between them.
A3 VTTR power_out Low-noise reference output equal to VDDQIN/2 that can supply 10mA for DDR memory, with an internal 0.01µF capacitor.
A4 VDDQIN input External reference input for Channel 2; an internal resistor divider sets the VTTR pin to half the voltage applied to this input.
A5 COMP2 passive Current control threshold and error amplifier compensation point of Channel 2, with a normal range of 0.3V to 1.8V.
B1 VOUT2 power_out Power output pin of the Channel 2 switching regulator; apply the load between this pin and GND, with output decoupling placed directly at the pins.
B2 RUN2 input Run control input for Channel 2; tie above 1.28V to enable the channel, tie below 1V to shut it down, and do not float this pin.
B3 VIN power_in Power input pin; apply the 3.6V to 15V input between the VIN and GND pins with input decoupling placed directly between them.
B4 PGOOD2 output Open-drain power good output pulled low when VOUT2 is outside ±8% (typical) of VDDQIN/2, with 15mV of hysteresis.
B5 GND power_in Power ground pin for both the input and output returns.
C1 GND power_in Power ground pin for both the input and output returns.
C2 GND power_in Power ground pin for both the input and output returns.
C3 INTVCC power_out Internal 3.3V regulator output that powers the internal drivers and control circuits, internally decoupled to GND with a 2.2µF ceramic capacitor.
C4 SGND power_in Ground pin printed as SGND in the pinout table and as a power ground in the Pin Functions section, to be used as a ground return.
C5 SYNC/MODE input Mode select and external synchronization input; tie to GND for forced continuous operation, float or tie to INTVCC for Burst Mode at light load, or drive with a clock to synchronize the switching frequency.
D1 VOUT1 power_out Power output pin of the Channel 1 switching regulator; apply the load between this pin and GND, with output decoupling placed directly at the pins.
D2 RUN1 input Run control input for Channel 1; tie above 1.28V to enable the channel, tie below 1V to shut it down, and do not float this pin.
D3 VIN power_in Power input pin; apply the 3.6V to 15V input between the VIN and GND pins with input decoupling placed directly between them.
D4 PGOOD1 output Open-drain power good output pulled low when FB1 is outside ±8% (typical) of the internal 0.6V reference, with 15mV of hysteresis.
D5 GND power_in Power ground pin for both the input and output returns.
E1 VOUT1 power_out Power output pin of the Channel 1 switching regulator; apply the load between this pin and GND, with output decoupling placed directly at the pins.
E2 VIN power_in Power input pin; apply the 3.6V to 15V input between the VIN and GND pins with input decoupling placed directly between them.
E3 TRACK/SS1 input Output tracking and soft-start pin for Channel 1; a voltage below 0.6V servos FB1 to this pin, and the internal 1.2µA pull-up from INTVCC lets a capacitor set the soft-start.
E4 FB1 input Negative input of the Channel 1 error amplifier, internally connected to VOUT1 through a 60.4k resistor, with an external resistor to GND programming the output voltage.
E5 COMP1 passive Current control threshold and error amplifier compensation point of Channel 1, with a normal range of 0.3V to 1.8V.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package BGA-25
Category Power Management ICs
Pins 25

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Input DC Voltage VIN 3.6 15 V 3
3.3V Input DC Voltage VIN_3.3 3.1 3.3 3.5 V VIN = INTVCC 3
Output Voltage Range (CH1) VOUT1(RANGE) 0.6 2.5 V VIN = 3.6V to 15V 3
Output Voltage Range (CH2) VOUT2(RANGE) 1.8 V VIN = 3.6V to 15V 3
CH1 Output Voltage, Total Variation with Line and Load VOUT1(DC) 1.28 1.3 1.32 V CIN = 22µF, COUT = 100µF Ceramic, RFB1 = 51.7k, MODE = GND, IOUT = -3A to 3A 3
CH1 Output Continuous Current Range IOUT1(DC) -3 3 A VIN = 12V, VOUT1 = 1.3V (Note 3) 3
CH1 Input Supply Bias Current IQ1(VIN) 13 mA VIN = 12V, VOUT1 = 1.3V, MODE = GND 3
CH1 Input Supply Bias Current IQ1(VIN) 400 µA VIN = 12V, VOUT1 = 1.3V, MODE = INTVCC 3
CH1 Input Supply Bias Current (shutdown) IQ1(VIN) 40 µA Shutdown, RUN1 = GND 3
CH1 Input Supply Current IS1(VIN) 0.4 A VIN = 12V, VOUT1 = 1.3V, IOUT = 3A 3
CH1 Line Regulation Accuracy ΔVOUT1(Line)/VOUT1 0.01 0.05 %/V VOUT1 = 1.3V, VIN = 3.6V to 15V, IOUT1 = 0A 3
CH1 Load Regulation Accuracy ΔVOUT1(Load)/VOUT1 0.2 1 % VOUT1 = 1.3V, IOUT = -3A to 3A 3
CH1 Output Ripple Voltage VOUT1(AC) 30 mV IOUT = 0A, COUT = 47µF Ceramic, VIN = 12V, VOUT1 = 1.3V 3
CH1 Turn-On Overshoot ΔVOUT1(START) 30 mV IOUT = 0A, COUT = 47µF Ceramic, TRACK/SS1 = -0.1µF, VIN = 12V, VOUT1 = 1.3V 3
Turn-On Time tSTART 5.5 ms COUT = 100µF Ceramic, TRACK/SS1 = 0.01µF, No Load, VIN = 12V, VOUT1 = 1.3V 3
CH1 Peak Deviation for Dynamic Load ΔVOUTLS1 85 mV Load: 0% to 25% to 0% of Full Load, COUT = 47µF Ceramic, VIN = 12V, VOUT1 = 1.3V 3
CH1 Settling Time for Dynamic Load Step tSETTLE1 20 µs Load: 0% to 25% to 0% of Full Load, COUT = 47µF Ceramic, VIN = 12V, VOUT1 = 1.3V 3
CH1 Output Current Limit IOUTPK1 4.5 A VIN = 12V, VOUT1 = 1.3V 3
CH2 Output Voltage, Total Variation with Line and Load VOUT2(DC) 637 650 663 mV CIN = 22µF, COUT = 100µF Ceramic, VDDQIN= 1.3V, MODE = GND, IOUT = -3A to 3A 3
CH2 Output Continuous Current Range IOUT2(DC) -3 3 A VIN = 12V, VDDQIN = 1.3V (Note 3) 3
CH2 Input Supply Bias Current IQ2(VIN) 7 mA VIN = 12V, VDDQIN = 1.3V, MODE = GND 3
CH2 Input Supply Bias Current (shutdown) IQ2(VIN) 40 µA Shutdown, RUN2 = 0 3
CH2 Input Supply Current IS2(VIN) 0.25 A VIN = 12V, VDDQIN = 1.3V, IOUT = 3A 3
CH2 Line Regulation Accuracy ΔVOUT2(Line)/VOUT2 0.01 0.05 %/V VDDQIN = 1.3V, VIN = 3.6V to 15V, IOUT2 = 0A 3
CH2 Load Regulation Accuracy ΔVOUT2(Load)/VOUT2 0.2 1 % VDDQIN = 1.3V, IOUT = -3A to 3A 3
CH2 Output Ripple Voltage VOUT2(AC) 30 mV IOUT = 0A, COUT = 100µF Ceramic, VIN = 12V, VDDQIN = 1.3V 3
CH2 Peak Deviation for Dynamic Load ΔVOUTLS2 85 mV Load: 0% to 25% to 0% of Full Load, COUT = 47µF Ceramic, VIN = 12V, VOUT1 = 1.3V 3
CH2 Settling Time for Dynamic Load Step tSETTLE2 20 µs Load: 0% to 25% to 0% of Full Load, COUT = 47µF Ceramic, VIN = 12V, VOUT1 = 1.3V 3
CH2 Output Current Limit IOUTPK2 4.5 A 3
Voltage at VFB1 Pin VFB1 0.593 0.6 0.607 V IOUT = 0A, VOUT1 = 1.3V 4
Current at VFB1 Pin IFB1 -30 30 nA (Note 4) 4
Resistor Between VOUT1 and VFB1 Pins RFBHI1 60 60.4 60.8 kΩ 4
VTTR Voltage Reference (values are multiples of VDDQIN) VTTR 0.492 0.5 0.508 V VDDQIN = 1.3V, IVTTR = ±10mA, CVTTR < 10nF; min/typ/max printed as x VDDQIN 4
RUN Pin On Threshold (rising) VRUN1, VRUN2 1.18 1.28 1.39 V RUN Threshold Rising 4
RUN Pin On Threshold (falling) VRUN1, VRUN2 0.95 1.01 1.05 V RUN Threshold Falling 4
RUN Pin Leakage Current IRUN1, IRUN2 -1 0 1 µA 4
Minimum On-Time tON(MIN) 20 ns (Note 4) 4
Minimum Off-Time tOFF(MIN) 45 ns (Note 4) 4
PGOOD Trip Level, VFB with respect to 0.6V VPGOOD -8 8 % Ramping Negative / Ramping Positive 4
PGOOD Trip Level, VOUT2 with respect to VDDQIN/2 VPGOOD -14 14 % Ramping Negative / Ramping Positive (Note 4) 4
PGOOD Pull-Down Resistance RPGOOD 15 Ω 1mA Load 4
Internal VCC Voltage VINTVCC 3.1 3.3 3.5 V VIN = 3.6V to 15V 4
INTVCC Load Regulation VINTVCC Load Reg 1.3 % ICC = 0 to 50mA 4
Oscillator Frequency fOSC 1 MHz 4
SYNC Threshold Voltage SYNC 0.95 V 4
MODE Input Current ISYNC/MODE -1.5 µA SYNC/MODE = INTVCC 4
Absolute Max VIN VIN -0.3 16 V 2
Absolute Max VOUT VOUT -0.3 6 V 2
Absolute Max PGOOD1, PGOOD2 PGOOD1, PGOOD2 -0.3 16 V 2
Absolute Max RUN1, RUN2 RUN1, RUN2 -0.3 V max = VIN+0.3V as printed 2
Absolute Max INTVCC, TRACK/SS1, VDDQIN, VTTR INTVCC, TRACK/SS1, VDDQIN, VTTR -0.3 3.6 V 2
Absolute Max SYNC/MODE, COMP1, COMP2, FB1, FB2 SYNC/MODE, COMP1, COMP2, FB1, FB2 -0.3 V max = INTVCC as printed 2
Operating Internal Temperature Range TJ -40 125 °C Notes 2, 3, 5 2
Storage Temperature Range TSTG -55 125 °C 2
Maximum Junction Temperature TJMAX 125 °C 2
Junction-to-Case (top) Thermal Resistance θJCtop 17 °C/W 2
Junction-to-Case (bottom) Thermal Resistance θJCbottom 11 °C/W 2
Junction-to-Board plus Board-to-Ambient Thermal Resistance θJB +θBA 22 °C/W 2
Junction-to-Ambient Thermal Resistance θJA 20 °C/W JESD 51-9 test board 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts copper • Use a separated SGND ground copper area for com￾ponents connected to signal pins. Connect the SGND 21

CAD (KiCad official)

  • Symbol: LTM4632EY#PBF
  • Footprint: Package_BGA:BGA-25_6.35x6.35mm_Layout5x5_P1.27mm
  • 3D model: BGA-25 (KiCad packages3D, STEP)
  • 3D model files: ltm4632ey-pbf-etched.step / ltm4632ey-pbf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ltm4632ey-pbf.step / ltm4632ey-pbf.glb are the bare package body.

Provenance

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

  • Datasheet: Analog Devices datasheet (28 pp, sha256 641fe753b308fd12, retrieved 2026-11-02, 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