MAX1910EUB+ by Analog Devices

1.5x/2x High-Efficiency White LED Charge Pumps


The MAX1910/MAX1912 power LEDs with a regulated output voltage or current (up to 120mA) from an unregulated input supply (2.7V to 5.3V). These are complete DC-DC converters requiring only four small ceramic capacitors and no inductors. Input ripple is minimized by a unique regulation scheme that maintains a fixed 750kHz switching frequency over a wide load range. Also included are logic-level shutdown and soft-start to reduce input current surges at startup. The MAX1910 has two automatically selected operating modes: 1.5x and 2x. 1.5x mode improves efficiency at higher input voltages, while 2x mode maintains regulation at lower input voltages. The MAX1912 operates only in 1.5x mode. The MAX1910 and the MAX1912 are available in a space-saving 10-pin µMAX package.

Where to Buy

Prices starting from US$1.66

Distributor Stock
Logo for Farnell
Farnell
from US$1.66
39
in stock
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Logo for Analog Devices
Analog Devices
from US$1.81
1,527
in stock
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Newark Electronics
from US$2.02
39
in stock
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Logo for element14
element14
from US$1.76
39
in stock
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Features

High-Efficiency 1.5x/2x Charge Pumps
Low Input Ripple with 750kHz Operation
200mV Current-Sense Threshold Reduces Power Loss
Current- or Voltage-Regulated Charge Pump
Up to 120mA Output Current
No Inductors Required
Small Ceramic Capacitors
Regulated ±5% LED Current
Load Disconnected in Shutdown
1µA Shutdown Current
Small 10-Pin µMAX Package

Specifications

VIN (V) (min) 2.7
VIN (V) (max) 5.3
Max. No. of LEDs 5
# LED Channels 1
Regulation Topology Charge Pump
Battery Input 1-Cell Li+
LED Configuration Parallel
ILED per Channel (A) (max) 0.12
Dimming Control Analog
POUT (W) 0.5
ICC (mA) (max) 2.5
LED String Volt. (V) (max) 5
Switching Frequency (kHz) 750
Package/Pins UMAX/10
BudgetaryPrice (See Notes) 1.23


MAX1910EUB+ Semiconductors - ICs by Analog Devices

LED CHARGE PUMP 750KHZ UMAX-10

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Device Topology -
No. of Outputs 1Outputs
Output Current 120mA
Output Voltage 5V
Driver Case Style µMAX
No. of Pins 10Pins
Input Voltage Min 2.7V
Input Voltage Max 5.3V
Switching Frequency 750kHz
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

1.5x/2x High-Efficiency White | Analog Devices
Led Charge Pump, 750Khz, Umax-10 | Newark Electronics
LED CHARGE PUMP, 750KHZ, UMAX-10 | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX1910EUB+ ?

Additional datasheets, footprints and schematics for MAX1910EUB+ are listed on our Part Details page. You can also find images and similar parts to MAX1910EUB+ on this page.

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Is the MAX1910EUB+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX1910EUB+ have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX1910EUB+ .

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