MAX8815AETB+T by Analog Devices

1A, 97% Efficiency, 30µA Quiescent Current, Step-Up Converter with True Shutdown


The MAX8815A DC-DC step-up converter is a high-efficiency, low quiescent current, synchronous step-up converter with True Shutdown™ and inrush-current limiting. The MAX8815A generates any output voltage from 3.3V to 5V from a 2-cell NiMH/NiCd or a single-cell Li+/Li polymer battery. The MAX8815A uses two modes of operation. The first mode of operation (normal) uses only 30µA (typ) quiescent current and allows the converter to switch only when needed at no load and light loads. Under moderate and heavy loads (typically above 90mA), the MAX8815A uses a fixed-frequency pulse-width modulation (PWM) technique. This mode allows maximum efficiency at light loads. The second mode of operation is a fixed-frequency forced-pulse-width modulation (FPWM) mode where the converter switches at a fixed frequency irrespective of the load. This mode allows for easy noise filtering and lower output ripple. The MAX8815A has a preset 2.5A current limit, allowing 500mA load at 1.8V input and 1A load at 2.5V input when the output is set to 5V. Features include soft-start, which limits inrush current during startup, True Shutdown, and internal compensation. The MAX8815A is available in a compact 10-pin, 3mm x 3mm TDFN package. The MAX8815A evaluation kit can help shorten the time required for system design.

Where to Buy

Prices starting from US$0.63

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Farnell
from US$1.84
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Schukat Electronic
from US$0.63
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Analog Devices
from US$1.99
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Newark Electronics
from US$2.07
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element14
from US$1.91
261
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Features

Up to 97% Efficiency with Internal Synchronous Rectifier
Low 30µA Quiescent Current
Guaranteed 500mA Output Current at VOUT = 5V from 1.8V Input
Guaranteed 1A Output Current at 5V from 2.5V Input
Low-Noise Constant Frequency Operation (FPWM Mode)
2MHz PWM Switching Frequency
Preset (5V) or Adjustable Output
Controlled Current in Soft-Start Limits Inrush Current
True Shutdown
Internal Compensation
Overload/Short-Circuit Protection
0.1µA Shutdown Current
Thermal Shutdown
Compact 10-Pin, 3mm x 3mm TDFN Package

Specifications

VIN (V) (min) 1.2
VIN (V) (max) 5.5
VOUT1 (V) (min) 1.265
VOUT1 (V) (max) 5.5
IOUT1 (A) (max) 1
Switch Type Internal
Output Adjust. Method Resistor
Synchronous Switching? Yes
IQ (mA) (typ) 0.03
Shutdown Mode Supply Current (µA) (typ) 0.1
Shutdown Mode Supply Current (µA) (max) 1
# DC-DC Outputs 1
Switching Frequency (kHz) 2000
Package/Pins TDFN/10
BudgetaryPrice (See Notes) 1.51


MAX8815AETB+T Semiconductors - ICs by Analog Devices

DC/DC CONV SYNC BOOST 2MHZ TDFN-10

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

Specifications

Topology Synchronous Boost (Step Up)
Input Voltage Min 1.2V
Input Voltage Max 5.5V
DC / DC Converter IC Case TDFN
No. of Pins 10Pins
Output Current 1A
Output Voltage Nom. 5V
Switching Frequency 2MHz
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Boost Sw. Reg 5V/Adj 1A 1,2-5,5Vi TDFN10 | Schukat Electronic
1A, 97 Efficiency, 30µA Quiesc | Analog Devices
Dc/Dc Conv, Sync Boost, 2Mhz, Tdfn-10 | Newark Electronics
DC/DC CONV, SYNC BOOST, 2MHZ, TDFN-10 | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX8815AETB+T ?

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Is the MAX8815AETB+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

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