MPM3834C MPSIND | Alldatasheet

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Technical content

2.75V to 6V, 3A, Ultra-Small Power Module with Ultra-Low Noise MPM3834C Rev. 1.01 MonolithicPower.com 1 6/14/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved.

DESCRIPTION

The MPM3834C is synchronous, step -down power module with an integrated inductor. The MPM3834C achieves 3A of continuous output current (I OUT) from a 2.75V to 6V input voltage (VIN) range, with excellent load and line regulation. The MPM3834C w orks in forced continuous conduction mode (FCCM) and has a small output voltage (V OUT) ripple with one output capacitor. This makes the device well - suited for optical modules, FPGA, ASIC, and other applications requiring low ripple noise and a small PCB area. VOUT can be regulated to be as low as 0.6V. Only FB resistors, inp ut capacitors, and output capacitors are required to complete the design. Constant-on-time control (COT) provides fast transient response, high efficiency, and easy loop stabilization. Full protection features include cycle -by-cycle current limiting, short-circuit protection (SCP) with hiccup mode, and thermal shutdown. The MPM38 34C requires a minimal number of readily available, standard external components. It is available in an ultra -small ECLGA-14 (2.5mmx2.5mmx1.2mm) package.

FEATURES

  • Wide 2.75V to 6V Operating Input Voltage (VIN) Range
  • Adjustable Output Voltage (VOUT) from 0.6V
  • Up to 3A Continuous Output Current (IOUT)
  • 100% Duty Cycle in Dropout
  • Up to 92% Efficiency with 3.3V to 1.8V
  • Forced Continuous Conduction Mode (FCCM)
  • Enable (EN) and Power Good (PG) for Power Sequencing
  • Cycle-by-Cycle Over-Current Protection (OCP)
  • Short-Circuit Protection (SCP) with Hiccup Mode
  • Only Four External Components Required
  • Available in an ECLGA-14 (2.5mmx2.5mmx1.2mm) Package

APPLICATIONS

  • FPGA, ASIC, DSP Power
  • Optical Modules
  • LDO Replacements
  • Power for Portable Products
  • Storage (Solid-State Drives and Hard-Disk Drives)
  • Space-Constrained Applications All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit the MPS website unde r Quality Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are trademarks of Monolithic Power Systems, Inc. or its subsidiaries. TYPICAL APPLICATION MPM3834C PGND IN 22µF PG VIN = 2.75V to 6V FB 200kΩ AGND OUT VOUT = 1.2V/3A 22µF 200kΩ EN OUT_S CFF NS 0.0 1.0 2.0 3.0 EFFICIENCY (%) LOAD CURRENT (A) Efficiency vs. Load Current VOUT = 1.2V VIN=5V VIN=3.3V

MPM3834C – 6V, 3A, ULTRA-SMALL STEP-DOWN POWER MODULE MPM3834C Rev. 1.01 MonolithicPower.com 2 6/14/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved.

ORDERING INFORMATION

Part Number* Package Top Marking MSL Rating MPM3834CGPA ECLGA-14 (2.5mmx2.5mm) See Below 3 * For Tape & Reel, add suffix -Z (e.g. MPM3834CGPA-Z). TOP MARKING BTH: Product code of MPM3834CGPA Y: Year code WW: Week code LLL: Lot number PACKAGE REFERENCE TOP VIEW IN IN IN PG OUT OUT PGND PGND PGND OUT_SFBAGNDEN SW 14 13 12 11 10 76543 ECLGA-14 (2.5mmx2.5mm)

MPM3834C – 6V, 3A, ULTRA-SMALL STEP-DOWN POWER MODULE MPM3834C Rev. 1.01 MonolithicPower.com 3 6/14/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved. PIN FUNCTIONS Pin # Name Description 1 SW SW test pin. Float the SW pin. 2, 7, 8 PGND Power ground. 3 EN On/off control. 4 AGND Analog ground for the internal control circuit. The AGND pin is not connected to PGND internally. Connect AGND to the PGND on the PCB layout. 5 FB Feedback. Use an external resistor divider from the output to AGND, tapped to the FB pin, to set the output voltage (VOUT). 6 OUT_S Output voltage sense. 9, 10 OUT Power output. 11 PG Power good indicator. The output of the PG pin is an open drain with an internal pull -up resistor connected to the IN pin. PG is pulled up to IN when the FB voltage is within 10% of the regulation level; otherwise, PG is low. 12, 13, 14 IN Power input. ABSOLUTE MAXIMUM RATINGS (1) -0.3V (-5V for <10ns) to +6.5V (+10V for <10ns) Continuous power dissipation (TA = 25°C) (5) ESD Ratings Recommended Operating Conditions (2) Operating junction temp (TJ). ... -40°C to +125°C Thermal Resistance (3) (4) (5) (6) (7) ECLGA-14 (2.5mmx2.5mm) Notes: 1) Exceeding these ratings may damage the device. 2) The device is not guaranteed to function outside of its operating conditions. 3) θJA is the junction-to-ambient thermal resistance, θJC_TOP is the junction-to-case top thermal characterization parameter, and θJB is the junction -to-board thermal characterization parameter. 4) The thermal parameter is based on the test on the MPS evaluation board (T -EVM3834C-PA-00A) under a no airflow cooling condition in a standard enclosure. The board size is 5.1cmx5.1cm, 2 layers, of which top and b ottom layer copper thickness is 2oz. 5) The maximum allowable power dissipation is a function of the maximum junction temperature , TJ (MAX), the junction -to- ambient thermal resistance , θJA, and the ambient temperature, TA. The maximum allowable continuous power dissipation at any ambient temperature is calculated by P D (MAX) = (T J (MAX) - TA) / θJA. Exceeding the maximum allowable power dissipation produces an excessive die temperature. 6) The junction -to-case top thermal characterization parameter , θJC_TOP, estimates the junction temperature in the real system, based on equation T I = θJC_TOP x P LOSS + TCASE_TOP. W here PLOSS is the entire loss of the module in real applications, and TCASE_TOP is case top temperature 7) The junction-to-board thermal characterization parameter, θJB, estimation the junction temperature in the real system, based on equation TI = θJB x PLOSS +TBOARD. Where PLOSS is the entire power loss of the module in real applica tions, and TBOARD is board temperature.

MPM3834C – 6V, 3A, ULTRA-SMALL STEP-DOWN POWER MODULE MPM3834C Rev. 1.01 MonolithicPower.com 4 6/14/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

VIN = 3.6V, TJ = -40°C to +125°C (8), typical value is tested at T J = 25°C, the over-temperature limit is guaranteed by characterization, unless otherwise noted. Parameter Symbol Condition Min Typ Max Units Feedback voltage VFB 2.75V ≤ VIN ≤ 6V 591 600 609 mV Feedback current IFB VFB = 0.6V 10 nA Inductor value L Inductance value at 1MHz 0.47 μH Dropout resistance RDR 100% on duty 75 mΩ Switch leakage VEN = 0V, VIN = 6V, VSW = 0V and 6V, TJ = 25°C 0 2 μA P-channel MOSFET peak current limit TJ = 25°C 5 6 A N-channel MOSFET valley current limit (8) 3.6 A On time tON VIN = 5V, VOUT = 1.2V 185 ns VIN = 3.6V, VOUT = 1.2V 250 Switching frequency fSW VOUT = 1.2V, ILOAD = 1A 1250 kHz Minimum off time (9) tMIN-OFF 100 ns Minimum on time (9) tMIN-ON 80 ns Soft-start time (9) tSS-ON 1.7 ms Soft-stop time tSS-OFF 2 ms Power good upper trip threshold PG_OV FB voltage in respect to the regulation 7 % Power good lower trip threshold PG_UV -12 % Power good delay 100 μs Power good sink current capability VPG_LO Sink 1mA 0.4 V Power good logic high voltage VPG_HI VIN = 5V, VFB = 0.6V 4 V Power good internal pull-up resistor RPG 440 kΩ Under-voltage lockout threshold rising 2.3 2.5 2.75 V Under-voltage lockout threshold hysteresis 400 mV EN input logic low voltage 0.3 V EN input logic high voltage 1.2 V EN input current VEN = 2V 2 μA VEN = 0V 0 μA Supply current (shutdown) VEN = 0V, TJ = 25°C 0 1 μA Supply current (quiescent) VEN = 2V, VFB = 0.63V, VIN = 3.6V 500 μA

MPM3834C – 6V, 3A, ULTRA-SMALL STEP-DOWN POWER MODULE MPM3834C Rev. 1.01 MonolithicPower.com 5 6/14/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved. ELECTRICAL CHARACTERISTICS (continued) VIN = 3.6V, TJ = -40°C to +125°C (8), typical value is tested at T J = 25°C, the over-temperature limit is guaranteed by characterization, unless otherwise noted. Parameter Symbol Condition Min Typ Max Units Converter System (9) Output voltage range (9) 0.6 6 V Recommended input capacitance (9) CIN1 VIN = 3.6V, VOUT = 1.2V, IOUT = 2A 4.7 22 μF Output capacitance (9) COUT1 VIN = 3.6V, VOUT = 1.2V, IOUT = 2A 10 22 μF Output ripple (9) VIN = 3.6V, VOUT = 1.2V, COUT = 22μF, IOUT = 2A 8 mV Efficiency (9) VIN = 3.6V, VOUT = 1.2V, IOUT = 2A 85 % Load transient peak-to- peak voltage (9) VP2P1 VIN = 3.6V, VOUT = 1.2V, COUT = 22μF, IOUT = 0A to 2A at 1A/μs 140 mV Thermal shutdown (9) 150 °C Thermal hysteresis (9) 30 °C Notes: 8) Not tested in production. Guaranteed by over-temperature correlation. 9) Guaranteed by engineering sample characterization.

MPM3834C – 6V, 3A, ULTRA-SMALL STEP-DOWN POWER MODULE MPM3834C Rev. 1.01 MonolithicPower.com 6 6/14/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved. TYPICAL CHARACTERISTICS Performance curves are test ed on the evaluation board . VIN = 5V, V OUT = 1.2V, CIN = 22µF, COUT = 22µF, TA = 25°C, unless otherwise noted. 0.0 1.0 2.0 3.0 EFFICIENCY (%) LOAD CURRENT (A) Efficiency vs. Load Current VOUT = 1.2V VIN=5V VIN=4.2V VIN=3.3V 0.0 1.0 2.0 3.0 EFFICIENCY (%) LOAD CURRENT (A) Efficiency vs. Load Current VOUT = 1.8V VIN=5V VIN=4.2V VIN=3.3V 100 0.0 1.0 2.0 3.0 EFFICIENCY (%) LOAD CURRENT (A) Efficiency vs. Load Current VOUT = 2.5V VIN=5V VIN=4.2V VIN=3.3V 100 0.0 1.0 2.0 3.0 EFFICIENCY (%) LOAD CURRENT (A) Efficiency vs. Load Current VOUT=3.3V VIN=5V VIN=4.2V -0.4 -0.3 -0.2 -0.1 0.0 0.1 0.2 0.3 0.4 0.0 1.0 2.0 3.0 LOAD REGULATION (%) LOAD CURRENT (A) Load Regulation VOUT = 1.2V VIN=5V VIN=4.2V VIN=3.3V -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 0.0 1.0 2.0 3.0 LOAD REGULATION (%) LOAD CURRENT (A) Load Regulation VOUT = 1.8V VIN=5V VIN=4.2V VIN=3.3V

MPM3834C – 6V, 3A, ULTRA-SMALL STEP-DOWN POWER MODULE MPM3834C Rev. 1.01 MonolithicPower.com 7 6/14/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved. TYPICAL CHARACTERISTICS (continued) Performance curves are test ed on the evaluation board . VIN = 5V, V OUT = 1.2V, CIN = 22 µF, COUT = 22µF, TA = 25°C, unless otherwise noted. -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 0.0 1.0 2.0 3.0 LOAD REGULATION (%) LOAD CURRENT (A) Load Regulation VOUT = 2.5V VIN=5V VIN=4.2V VIN=3.3V -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 0.0 1.0 2.0 3.0 LOAD REGULATION (%) LOAD CURRENT (A) Load Regulation VOUT = 3.3V VIN=5V VIN=4.2V -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 LINE REGULATION (%) INPUT VOLTAGE (V) Line Regulation VOUT = 1.2V IOUT=1A IOUT=3A -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 LINE REGULATION (%) INPUT VOLTAGE (V) Line Regulation VOUT = 1.8V IOUT=1A IOUT=3A -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 LINE REGULATION (%) INPUT VOLTAGE (V) Line Regulation VOUT = 2.5V IOUT=1A IOUT=3A -0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 3 4 5 6 LINE REGULATION (%) INPUT VOLTAGE (V) Line Regulation VOUT = 3.3V IOUT=1A IOUT=3A

MPM3834C – 6V, 3A, ULTRA-SMALL STEP-DOWN POWER MODULE MPM3834C Rev. 1.01 MonolithicPower.com 8 6/14/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved. TYPICAL CHARACTERISTICS (continued) Performance curves are test ed on the evaluation board . VIN = 5V, V OUT = 1.2V, CIN = 22 µF, COUT = 22µF, TA = 25°C, unless otherwise noted. Thermal Result IOUT = 3A, 4-layer PCB

MPM3834C – 6V, 3A, ULTRA-SMALL STEP-DOWN POWER MODULE MPM3834C Rev. 1.01 MonolithicPower.com 9 6/14/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved. TYPICAL PERFORMANCE CHARACTERISTICS Performance waveforms are test ed on the evaluation board . VIN = 5V, V OUT = 1.2V, CIN = 22µF, COUT = 22µF, TA = 25°C, unless otherwise noted. Steady State VIN = 5V, VOUT = 1.2V, IOUT = 0A Steady State VIN = 5V, VOUT = 1.2V, IOUT = 3A CH1: VOUT/AC 20mV/div. CH2: VIN 5V/div. CH3: Vsw 5V/div. CH4: IOUT 2A/div. CH1: VOUT/AC 20mV/div. CH2: VIN 5V/div. CH3: Vsw 5V/div. CH4: IOUT 2A/div. 1μs/div. 1μs/div. Start-Up through VIN VIN = 5V, VOUT = 1.2V, IOUT = 0A Start-Up through VIN VIN = 5V, VOUT = 1.2V, IOUT = 3A CH1: VOUT 1V/div. CH2: VIN 5V/div. CH3: Vsw 5V/div. CH4: IOUT 2A/div. CH1: VOUT 1V/div. CH2: VIN 5V/div. CH3: Vsw 5V/div. CH4: IOUT 2A/div. 2ms/div. 2ms/div. Shutdown through VIN VIN = 5V, VOUT = 1.2V, IOUT = 0A Shutdown through VIN VIN = 5V, VOUT = 1.2V, IOUT = 3A CH1: VOUT 1V/div. CH2: VIN 5V/div. CH3: Vsw 5V/div. CH4: IOUT 2A/div. CH1: VOUT 1V/div. CH2: VIN 5V/div. CH3: Vsw 5V/div. CH4: IOUT 2A/div. 10ms/div. 2ms/div.

MPM3834C – 6V, 3A, ULTRA-SMALL STEP-DOWN POWER MODULE MPM3834C Rev. 1.01 MonolithicPower.com 10 6/14/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved. TYPICAL PERFORMANCE CHARACTERISTICS (continued) Performance waveforms are test ed on the evaluation board . VIN = 5V, V OUT = 1.2V, CIN = 22µF, COUT = 22µF, TA = 25°C, unless otherwise noted. Start-Up through EN VIN = 5V, VOUT = 1.2V, IOUT = 0A Start-Up through EN VIN = 5V, VOUT = 1.2V, IOUT = 3A CH1: VOUT 1V/div. CH2: VEN 5V/div. CH3: Vsw 5V/div. CH4: IOUT 2A/div. CH1: VOUT 1V/div. CH2: VEN 5V/div. CH3: Vsw 5V/div. CH4: IOUT 2A/div. 4ms/div. 4ms/div. Shutdown through EN VIN = 5V, VOUT = 1.2V, IOUT = 0A Shutdown through EN VIN = 5V, VOUT = 1.2V, IOUT = 3A CH1: VOUT 1V/div. CH2: VEN 5V/div. CH3: Vsw 5V/div. CH4: IOUT 2A/div. CH1: VOUT 1V/div. CH2: VEN 5V/div. CH3: Vsw 5V/div. CH4: IOUT 2A/div. 4ms/div. 4ms/div. SCP Entry VIN = 5V, VOUT = 1.2V, IOUT = 0A SCP Recovery VIN = 5V, VOUT = 1.2V, IOUT = 0A CH1: VOUT 1V/div. CH2: VPG 5V/div. CH3: Vsw 5V/div. CH4: IOUT 10A/div. CH1: VOUT 1V/div. CH2: VPG 5V/div. CH3: Vsw 5V/div. CH4: IOUT 10A/div. 400μs/div. 800μs/div.

MPM3834C – 6V, 3A, ULTRA-SMALL STEP-DOWN POWER MODULE MPM3834C Rev. 1.01 MonolithicPower.com 11 6/14/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved. TYPICAL PERFORMANCE CHARACTERISTICS (continued) Performance waveforms are test ed on the evaluation board . VIN = 5V, V OUT = 1.2V, CIN = 22µF, COUT = 22µF, TA = 25°C, unless otherwise noted. SCP Entry VIN = 5V, VOUT = 1.2V, IOUT = 3A SCP Recovery VIN = 5V, VOUT = 1.2V, IOUT = 3A CH1: VOUT 1V/div. CH2: VPG 5V/div. CH3: Vsw 5V/div. CH4: IOUT 10A/div. CH1: VOUT 1V/div. CH2: VPG 5V/div. CH3: Vsw 5V/div. CH4: IOUT 10A/div. 400μs/div. 800μs/div. Load Transient Response VIN = 5V, VOUT = 1.2V, IOUT = 0A to 3A, 2.5A/µs e-load Load Transient Response VIN = 5V, VOUT = 1.2V, IOUT = 1.5A to 3A, 2.5A/µs e-load CH1: VOUT/AC 50mV/div. CH4: IOUT 2A/div. CH1: VOUT/AC 50mV/div. CH4: IOUT 2A/div. 800μs/div. 800μs/div.

MPM3834C – 6V, 3A, ULTRA-SMALL STEP-DOWN POWER MODULE MPM3834C Rev. 1.01 MonolithicPower.com 12 6/14/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved. FUNCTIONAL BLOCK DIAGRAM OUT PGND PG OUT_S FB EN Integrated Inductor IN Bias and Voltage Reference EA FBCOMP Ramp Generator COMP COMP PG_OV PG_UV SW RST EN VOUT Constant- On-Time Pulse PWM OC PWM Driver IN COMP COMP AGND SWMain Switch (PCH) Synchronous Rectifier (NCH)NDRV PDRV VTH Soft Start 0.6V 0.47µH Figure 1: Functional Block Diagram

MPM3834C – 6V, 3A, ULTRA-SMALL STEP-DOWN POWER MODULE MPM3834C Rev. 1.01 MonolithicPower.com 13 6/14/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved. OPERATION The MPM38 34C comes in a small surface - mounted ECLGA -14 (2.5mmx2.5mmx1.2mm) package. The MPM3834C’s integrated inductor simplifies t he schematic and layout design. Only FB resistors, input capacitors, and output capacitors are required to complete the design. The MPM38 34C uses constant -on-time (COT) control with input voltage feed -forward to stabilize the switching frequency (fSW) acro ss the full input range. Constant-On-Time Control (COT) Compared to fixed -frequency pulse -width modulation (PWM) control, COT control offers the advantage of a simpler control loop and faster transient response. By using input voltage feed-forward, the MPM3834C maintains a nearly constant f SW across the input and output voltage ran ges. The on time of the switching pulse can be estimated with Equation (1): OUT ON IN Vt 0.833 μsV= (1) To prevent inductor current runaway during the load transi tion, the MPM3834C fixes the minimum off time at 230ns. This minimum off time limit does not affect operation during steady state. Forced PWM Operation The MPM3834C works in continuous conduction mode (CCM) to achieve a smaller output voltage ripple, load regulation, and load transient response across the full load range. Enable (EN) If the input voltage (VIN) ex ceeds the under - voltage lockout (UVLO) threshold (typically 2.5V), the MPM38 34C can be enabled by pulling EN above 1.2V. Leave EN floating or pull EN down to ground to disable the MPM3834C. There is an internal pull -down resistor connected from EN to ground. Soft Start and Soft Shutdown The MPM38 34C has a built-in soft start that ramps up the output voltage at a controlled slew rate to prevent overshoots during start -up. The soft-start time is tSS-ON. When disabled, the MPM3834C ramps down the internal reference, so the load can discharge the output linearly. The soft - shutdown time is tSS-OFF. Power Good (PG) Indicator The MPM3834C has an open-drain power good (PG) indication pin with a pull-up resistor (R PG). When FB is within PG_OV and PG_UV, PG is pulled up to IN by the internal resistor. If the FB voltage is out of this window, PG is pulled down to ground by an internal MOSFET. The MOSFET has a maximum RDS(ON) of 100Ω. Current Limit The MPM38 34C’s high-side MOSFET (HS - FET) has a typical peak current limit, and the low-side MOSFET (LS -FET) has a valley current limit. When the HS-FET reaches its current limit, the HS-FET turns off, and the LS- FET turns on. When the curr ent drops to the valley current limit threshold, the MPM38 34C turns on the HS-FET again. If the HS-FET reaches the peak current limit or the LS-FET reaches the valley current limit for 64 consecutive cycles , the MPM3834C initiates hiccup mode . It remains in hiccup mode until the current decreases. This prevents the inductor current from continu ously rising and damaging components. Short-Circuit Protection (SCP) and Recovery If the output is shorted to GND, the current limit is triggered. If the current limit is triggered every for 64 consecutive cycles , the MPM3834C enters hiccup mode and disables the output power stag e. The MPM38 34C discharges the soft-start capacitor, then automatically attempts to soft start again. If the short -circuit condition remains after soft start ends, the MPM38 34C repeats this operation until the short circuit is removed and the output rise s back to the regulation level.

MPM3834C – 6V, 3A, ULTRA-SMALL STEP-DOWN POWER MODULE MPM3834C Rev. 1.01 MonolithicPower.com 15 6/14/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved. When using tantalum or electrolytic capacitors, the ESR dominates the impedance at the switching frequency. For simplification, the output ripple can be calculated with Equation (7): OUT OUT OUT ESR INSW 1 VVΔV 1 R f L V (7) Where L1 is a 0.47μH integrated inductor. The output capacitor ’s characteristics affect the stability of the regulation system.

MPM3834C – 6V, 3A, ULTRA-SMALL STEP-DOWN POWER MODULE MPM3834C Rev. 1.01 MonolithicPower.com 17 6/14/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved. TYPICAL APPLICATION CIRCUIT MPM3834C PGND IN 22µF PG VIN 2.75V to 6V FB 200kΩ AGND OUT VOUT 1.2V / 3A 22µF 200kΩ EN OUT_S 100kΩ 100kΩ CFF NS Figure 4: Typical Application Circuit Note: 10) Additional input capacitors may be required for applications where VIN < 3.3V.

MPM3834C – 6V, 3A, ULTRA-SMALL STEP-DOWN POWER MODULE MPM3834C Rev. 1.01 MonolithicPower.com 18 6/14/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved.

PACKAGE INFORMATION

ECLGA-14 (2.5mmx2.5mm) BOTTOM VIEWTOP VIEW SIDE VIEW PIN 1 ID MARKING PIN 1 ID INDEX AREA NOTE: 1) ALL DIMENSIONS ARE IN MILLIMETERS. 2) LEAD COPLANARITY SHALL BE 0.10 MILLIMETERS MAX. 3) JEDEC REFERENCE IS MO-303. 4) DRAWING IS NOT TO SCALE. RECOMMENDED LAND PATTERN

MPM3834C – 6V, 3A, ULTRA-SMALL STEP-DOWN POWER MODULE MPM3834C Rev. 1.01 MonolithicPower.com 19 6/14/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved. CARRIER INFORMATION Pin1 1 1 1 1 ABCD ABCD ABCD ABCD Feed Direction Part Number Package (2.5mmx2.5mm) 2500 N/A N/A 13in 12mm 8mm

MPM3834C – 6V, 3A, ULTRA-SMALL STEP-DOWN POWER MODULE Notice: The information in this document is subject to chan ge without notice. Please contact MPS for current specifications. Users should warrant and guarantee that third-party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. MPM3834C Rev. 1.01 MonolithicPower.com 20 6/14/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved.

REVISION HISTORY

Revision # Revision Date Description Pages Updated 1.0 4/15/2022 Initial Release - 1.01 6/14/2022 Corrected mentions of “MPM3414C” to “MPM3834C” 1, 13