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MAX1999EEI+T The Analog Devices MAX1999EEI+T is a dual step-down, switch-mode power-supply controller designed for battery-powered systems. It offers adjustable or fixed output voltages and features Quick-PWM control.
Mfr Part #:

MAX1999EEI+T

Available from 2 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The Analog Devices MAX1999EEI+T is a dual step-down, switch-mode power-supply controller designed for battery-powered systems. It offers adjustable or fixed output voltages and features Quick-PWM control.
✓ Total Stock: 2,852 pcs
$ Price Range: $0.30

MAX1999EEI+T Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
2,848 pcs
On Request
2848 pcs On Request 1 On Request On Request 05+ On Request On Request
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
4 pcs
On Request
4 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

MAX1999EEI+T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Frequency
Input Voltage
Mounting Type
Number of Outputs
Operating Temperature
Output Current
Output Voltage
Supplier Device Package
Tape & Reel
Topology
Voltage
w
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MAX1999EEI+T Description

Short technical summary and product information.

The MAX1999EEI+T from Analog Devices (formerly Maxim Integrated) is a versatile dual step-down, switch-mode power-supply (SMPS) controller designed for logic-supply voltages in battery-powered systems. It integrates two PWM controllers and two linear regulators, providing up to four outputs. The device supports adjustable output voltages from 2V to 5.5V or fixed 5V and 3.3V outputs.

 

Featuring Maxim's proprietary Quick-PWM control scheme, the MAX1999EEI+T delivers a rapid 100ns response to load transients while maintaining a relatively constant switching frequency. This controller operates with an input voltage range of 4.5V to 24V and includes features like on-board power-up sequencing, a power-good output, digital soft-start, and internal soft-stop output discharge.

 

The MAX1999EEI+T is available in a 28-pin QSOP package and operates over an extended temperature range of -40°C to +85°C. Its design is suitable for applications such as notebook computers, PDAs, and mobile communication devices, particularly those powered by 3- and 4-cell Li+ batteries.

MAX1999EEI+T Quick Information

Product Type: Power Supply Controller
Canonical Name: MAX1999EEI+T Dual Step-Down, Switch-Mode Power-Supply Controller
Subcategory: Switching Voltage Regulators

MAX1999EEI+T Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MAX1999EEI+T Estimated Pricing

Qty Low High
1+ $0.30 $0.30

Estimated market price range - modelled values for guidance only, not live distributor offers.

MAX1999EEI+T Features

  • Dual step-down, switch-mode power-supply controller
  • Four total outputs: 2 SMPS, 2 linear regulators
  • 100ns load step response with Quick-PWM control
  • Adjustable or fixed output voltages
  • Operates from 4.5V to 24V input

MAX1999EEI+T Applications

  • Ideal for multi-rail power supply designs.
  • Used in portable and battery-powered devices.
  • Suitable for DSP and FPGA power sequencing.
  • Applicable in industrial control systems.
  • Can be used in networking equipment.

MAX1999EEI+T FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the MAX1999EEI+T?

4.5V to 24V.

What package options are available for the MAX1999EEI+T?

28-QSOP and 28-SSOP (0.154", 3.90mm Width).

What is the operating temperature range?

-40°C to 85°C.

What output voltages does the MAX1999EEI+T provide?

Adjustable from 2V to 5.5V, and fixed 3.3V and 5V outputs.

How many outputs does the MAX1999EEI+T have?

Four outputs: two synchronous buck converters and two LDOs.

What is the switching frequency of the buck converters?

200kHz/300kHz for 5V/3.3V SMPS, or 400kHz/500kHz depending on configuration, with a minimum 25kHz ultrasonic pulse-skipping mode.

What is the output current capability of the linear regulators?

Up to 100mA each.

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