Pololu 3.3V Step-Up/Step-Down Voltage Regulator w/ Fixed 3V Low-Voltage Cutoff S9V11F3S5C3

Pololu 3.3V Step-Up/Step-Down Voltage Regulator w/ Fixed 3V Low-Voltage Cutoff S9V11F3S5C3

The S9V11F3S5C3 switching step-up/step-down regulator efficiently produces a fixed 3.3 V (default) or 5 V (selectable) output whether it is higher or lower than the input voltage, which can range from 3 V to 16 V. The regulator also has fixed 3.3 V low-voltage cutoff with hysteresis that can be used to prevent battery over-discharge. The compact (0.5? × 0.6?) module can supply a typical output current of up to 1.5 A when the input voltage is close to the output voltage.

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SKU: PO2873
GTIN: 4060137042287
Category: Step-Up/Step-Down
Manufacturers: Pololu
MPN: 2873
Storage Tiers: Maintain

Overview

The S9V11x family of efficient switching regulators (also called switched-mode power supplies (SMPS) or DC-to-DC converters) use a buck-boost topology to convert both higher and lower input voltages to a regulated output voltage. They take input voltages from 2 V to 16 V and increase or decrease them as necessary, offering a typical efficiency of over 85% and a typical output current of up to 1.5 A. The flexibility in input voltage offered by this family of regulators is especially well-suited for battery-powered applications in which the battery voltage begins above the regulated voltage and drops below as the battery discharges. Without the typical restriction on the battery voltage staying above the required voltage throughout its life, new battery packs and form factors can be considered.

Features

Input voltage: 3 V to 16 V
Fixed 3.3 V output with +5/-3% accuracy (can be changed to 5 V using the SEL pin)
Typical maximum continuous output current: 1.5 A (when input voltage is close to the output; the Typical efficiency and output current section below shows how the achievable continuous output current depends on the input and output voltages)
Fixed 3 V low-voltage cutoff with hysteresis protects batteries from over-discharging (quiescent current is approximately 10 µA per volt on VIN when regulator is disabled)
Power-good indicator can be used to tell when the regulator has reached and is maintaining its target output voltage
Power-saving feature maintains high efficiency at low currents (quiescent current is less than 1 mA while enabled)
Integrated over-temperature and short-circuit protection
Small size: 0.5? × 0.6? × 0.17? (12.7 × 15.3 × 4.3 mm)

Dimensions

Size:0.5? × 0.6? × 0.17?¹
Weight:0.7 g¹

General specifications

Minimum operating voltage:3 V
Maximum operating voltage:16 V
Maximum output current:1.5 A²
Output voltage:3.3 V³
Reverse voltage protection?:N
Maximum quiescent current:1 mA⁴
Low-voltage cutoff:3V (fixed)

Identifying markings

PCB dev codes:reg20b
Other PCB markings:0J10534

Notes:

1.Without included optional headers.
2.Under typical conditions, where the input voltage is close to the output voltage. Maximum output current can be higher when stepping down and lower when stepping up.
3.Output can be changed to 5 V by driving the SEL pin over 1.1 V.
4.With no load. Actual quiescent current depends on input voltage; it is typically under 300 µA when the input voltage is close to the output voltage.

Storage Tiers:	Maintain
Output Voltage:	3.3V
Output Current max.:	1500mA
Operating Voltage max.:	16V
Operating Voltage min.:	3V
Regulator-Function:	Step Down/Step Up
Quiescent Current max.:	1mA
Output-Type:	fixed 3.3V (5V selectable)
Shipping weight:	0,01 kg
Item weight:	0,00 kg
Dimensions ( Length × Width × Height ):	1,30 × 1,60 × 0,50 cm