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ANALOG DEVICES MAX1678EUA+
Synchronous Boost (Step Up) Switching Regulator, Fixed, 700 mV to 5.5Vin, 3.3V/90mA out, µMAX-8
- Manufacturer:
- ANALOG DEVICES ANALOG DEVICES
- Manufacturer Part No:
- MAX1678EUA+
- Order Code:
- 2514106
-
- Technical Datasheet:
- MAX1678EUA+ Datasheet
- ECAD / MCAD
-
Product Overview
The MAX1678EUA+ is a 1 cell to 2 cell, low noise, high efficiency, step up DC to DC converter in 8 pin µMAX package. It is a high efficiency, low voltage, synchronous- rectified, step up DC to DC converter intended for use in devices powered by 1 to 3 cell alkaline, NiMH or NiCd batteries or a 1 cell lithium battery. It has a 0.87V start-up voltage and features a low 37µA quiescent supply current. The device includes a 1ohm, N-channel MOSFET power switch, a synchronous rectifier that acts as the catch diode, a reference, pulse-frequency-modulation (PFM) control circuitry and circuitry to reduce inductor ringing all in an ultra-small, 1.1mm high µMAX package. The output voltage is preset to 3.3V or can be adjusted from +2V to +5.5V using only two resistors. Efficiencies up to 90% are achieved for loads up to 50mA. The device also features an independent undervoltage comparator (PFI/PFO) and a logic-controlled 2µA shutdown mode.
- Supply voltage range is 0.7V to 5.5V
- Operating temperature range from -40°C to 85°C
- Built-in synchronous rectifier (no external diode)
- Power-fail detector
- Output current is 45mA at 3.3V for 1 cell input and output current is 90mA at 3.3V for 2 cell input
- Inductor damping switch suppresses EMI
Applications
Power Management, Portable Devices
Warnings
Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.
Product Information
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- :
- Synchronous Boost (Step Up)
- :
- 700mV
- :
- 5.5V
- :
- µMAX
- :
- 8Pins
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- 90mA
- :
- 3.3V
- :
- 150kHz
- :
- 85°C
- :
- -
- :
- -
- :
- MSL 1 - Unlimited
Technical Documents (2)
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Extra stock is available upon order to the Supplier Lead Time which is approximately 5/2/24
230 UK stock available for 3-4 business days delivery
Due to market conditions delivery times are for general guidance only and may be subject to change at short notice
S$7.43
(
S$8.02
Inc. GST)
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|---|---|---|
| 1+ | S$7.43 (S$8.02) | ( ) |
| 10+ | S$6.31 (S$6.81) | ( ) |
| 50+ | S$5.89 (S$6.36) | ( ) |
| 100+ | S$5.46 (S$5.90) | ( ) |
| 250+ | S$5.18 (S$5.59) | ( ) |
| 500+ | S$4.64 (S$5.01) | ( ) |
| 1000+ | S$3.91 (S$4.22) | ( ) |
| 2500+ | S$3.72 (S$4.02) | ( ) |
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