Maxim > Products > Power and Battery Management > MAX8884Y, MAX8884Z

MAX8884Y, MAX8884Z

700mA DC-DC Step-Down Converters with Dual 300mA LDO in 2mm x 2mm CSP

Saves Board Space by Consolidating Multiple Supplies into a Single Tiny 2mm x 2mm IC

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX8884Y/MAX8884Z step-down converters with dual low-dropout (LDO) linear regulators are intended to power low-voltage microprocessors, DSPs, camera and Wi-Fi modules, or other point of load applications in portable devices. These ICs feature high efficiency with small external component size. The step-down converter output voltage is pin selectable between 1.2V and 1.8V, and provides guaranteed output current of 700mA. The 2/4MHz hysteretic-PWM control scheme allows for tiny external components and reduces no-load operating current to 50µA. Two low quiescent current, low-noise LDOs operate down to 2.7V supply voltage. Two switching frequency options are available—MAX8884Y (2MHz) and MAX8884Z (4MHz)—allowing optimization for smallest solution size or highest efficiency. Fast switching allows the use of small ceramic 2.2µF input and output capacitors while maintaining low ripple voltage. The MAX8884Y/MAX8884Z have individual enables for each output, maximizing flexibility.

The MAX8884Y/MAX8884Z are available in a 16-bump, 2mm x 2mm CSP package (0.7mm max height).

Data Sheet

Download	Rev 1	(PDF, 584kB)
E-Mail

An evaluation kit is available: MAX8884EVKIT

Key Features

Step-Down Converter
- Pin-Selectable Output Voltage (1.2V/1.8V)
- 2MHz or 4MHz Switching Frequency
- Low-Output Voltage Ripple
- 700mA Output Drive Capability
- Simple Logic ON/OFF Control
- Tiny External Components
Low-Noise LDOs
- 2 x 300mA LDO
- Pin-Selectable Output Voltage (LDO1)
- Low 26µV_RMS (typ) Output Noise
- High 65dB (typ) PSRR
- Simple Logic ON/OFF Control
Low 0.1µA Shutdown Current
2.7V to 5.5V Supply Voltage Range
Thermal Shutdown
Tiny, 2mm x 2mm x 0.65mm CSP Package (4x4 Grid)

Applications/Uses

Cell Phones/Smartphones
Digital Cameras, Camcorders
Handheld Instruments
PCMCIA Cards
PDA and Palmtop Computers
Portable MP3 and DVD Players

Key Specifications:

Step-Down Switching Regulators

Part Number

V_IN
(V)

V_OUT
(V)

Preset V_OUT
(V)

Max. I_OUT
(A)

Output Adjust. Method

DC-DC Outputs

Oper. Freq.
(kHz)

Package/Pins

min

max

min

max

≥

≤

MAX8884

2.7

5.5

1.2

2.8

1.2

1.8

2.8

0.7

Digital/VID

Preset

4000

See Data Sheet

See All Step-Down Switching Regulators (284)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Typical Operating Circuit

More Information

New Product Press Release

[ 2009-10-27 ]

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-4418 Rev 1; 2010-02-01
This page last modified: 2010-09-07