Pololu 3.3V, 2.6A Step-Down Spannungsregler D24V22F3

Pololu 3.3V, 2.6A Step-Down Spannungsregler D24V22F3

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SKU: PO2857
GTIN: 4060137015892
Category: Step-Down
Manufacturers: Pololu
MPN: 2857
Storage Tiers: Maintain

This small synchronous switching step-down (or buck) regulator takes an input voltage from 4 V to 36 V and efficiently reduces it to 3.3 V. The board measures only 17.8 mm x 17.8 mm yet delivers typical continuous output currents between 2 A and 2.6 A, depending on the input voltage, which makes this regulator well suited for powering moderate loads like sensors or small motors. An optional enable input can be used to put the regulator in a low-power state with a current draw of 5 µA to 10 µA per volt on VIN. The regulator also features reverse voltage protection and a power-good output indicates when the regulator cannot adequately maintain the output voltage.

Features

Input voltage:
- 4 V to 36 V for the version that outputs 3.3 V
- [output voltage + dropout voltage] to 36 V for output voltages of 5 V and higher (see the dropout voltage section for details)
Fixed 3.3 V, 5 V, 6 V, 7.5 V, 9 V, or 12 V output (depending on regulator version) with 4% accuracy
Typical efficiency of 85% to 95%, depending on input voltage, output voltage, and load (see the efficiency graph below)
Switching frequency: ~400 kHz
Integrated reverse-voltage protection, over-current and short-circuit protection, over-temperature shutoff, and soft-start
1 mA typical no-load quiescent current; this can be reduced to approximately 5 µA to 10 µA per volt on VIN by disabling the board (see the quiescent current graph below)
“Power good” output indicates when the regulator cannot adequately maintain the output voltage
Compact size: 17.8 mm x 17.8 mm x 8 mm
Weight: 2.3 g (Without included optional headers.)
Two 0.086″ mounting holes for #2 or M2 screws

General specifications

Minimum operating voltage: 4 V
Maximum operating voltage: 36 V
Continuous output current: 2.3 A (Typical continuous output current at 24 V in. Actual achievable continuous output current is a function of input voltage and is limited by thermal dissipation. See the output current graph under the description tab for more information.)
Output voltage: 3.3 V
Reverse voltage protection?: Y
Maximum quiescent current: 1 mA (Quiescent current is typically under 1 mA for most of the operating range. )

Identifying markings

PCB dev codes: reg19a
Other PCB markings: 0J9251

Storage Tiers:	Maintain
Output Voltage:	3.3V
Operating Voltage max.:	36V
Operating Voltage min.:	4V
Continuous Output Current:	2.3A
Regulator-Function:	Step-Down
Quiescent Current max.:	1mA
Output-Type:	fixed
Shipping weight:	0,01 kg
Item weight:	0,01 kg
Dimensions ( Length × Width × Height ):	1,80 × 1,80 × 0,80 cm