Maxim > Products > Power and Battery Management > MAX8530, MAX8531

MAX8530, MAX8531

Dual Low-Dropout Linear Regulator with Reset or Low-Noise Output in UCSP or QFN

Industry's Smallest, Low-Dropout Linear Regulators Designed for Low-Noise, Space-Sensitive Applications

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX8530/MAX8531 offer the benefits of low-dropout voltage and ultra-low power regulation in subminiaturized UCSP and QFN packages with an integrated microprocessor reset circuit (MAX8530 only). The devices operate from a 2.5V to 6.5V input and deliver up to 200mA and 150mA outputs with low dropout of 100mV (typ) at 100mA. Designed with an internal P-channel MOSFET pass transistor, the supply current is kept at a low 130µA (with both LDOs on), independent of the load current and dropout voltage. Other features include short-circuit protection and thermal-shutdown protection.

The MAX8530 provides microprocessor open-drain, active-low reset output to monitor OUT1, eliminating external components and adjustments. The MAX8530 asserts a 100ms (min) RESET-bar signal when OUT1 drops below 87% of the nominal output voltage. The MAX8531 includes a reference bypass pin for low output noise (40µV_RMS).

Both devices include a logic-controlled shutdown input and are available in 6-bump UCSP and 6-pin thin QFN exposed pad packages.

Data Sheet

Download	Rev 1	(PDF, 256kB)
E-Mail

An evaluation kit is available: MAX8530EVKIT, MAX8531EVKIT

Key Features

Guaranteed 200mA Output Current for OUT1
Guaranteed 150mA Output Current for OUT2
Low 100mV (typ) Dropout at 100mA Load for both LDOs
Open-Drain, Active-Low 100ms (min) Reset Timer (MAX8530)
Low 40µV_RMS Output Noise (MAX8531)
Low 130µA Operating Supply Current
<1µA Shutdown Current
Thermal-Overload and Short-Circuit Protection
Output Current Limit
Tiny Packages Available
- 1.16 x 1.57 x 0.6mm UCSP (3 x 2 Grid)
- 3mm x 3mm Thin QFN

Applications/Uses

Cell Phones/Cordless Phones
Digital Cameras
Handheld Instruments (PDAs, Palmtops)
Notebook Computers
PCMCIA Cards
PDAs and Palmtop Computers
Wireless Local Area Networks (WLANs)

Key Specifications:

Linear Regulators

Part Number

Regulators

V_IN
(V)

Preset V_OUT
(V)

Special Order Preset

V_DROPOUT @Rated I_LOAD
(V)

Rated I_LOAD
(mA)

I_CC
(µA)

Output Voltage Noise
(µV RMS)

Ref. Bypass

Low Batt./ Pwr. Fail Out

POK/Reset Thresh.
(V)

Watchdog

Reverse Batt. Protect.

Oper. Temp.
(°C)

Package/Pins

Smallest Available Pckg.
(mm²)

Budgetary Price

min

max

typ

max

typ

nom

max w/pins

See Notes

MAX8530

2.5

6.5

1.8

2.5

2.6

2.8

2.85

1.5 to 3.3 by 0.05

0.22

200

220

320

Vout-13%

-40 to +85

TDFN-EP/6

UCSP/6

$0.75 @1k

MAX8531

2.85

Yes

TDFN-EP/6

UCSP/6

$0.75 @1k

See All Linear Regulators (146)

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

Functional Diagram

Application Notes

Tutorial 4671

Improve Sensor Performance and SNR in Pulse Oximeter Designs

Reliability Reports

Reliability Report:	MAX8530.pdf
Show FIT data for:
Request Reliability Report for:

Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX8530EBT8A-T			Active	UCSP;6 pin;2 mm² Outline Drawing:21-0097 (PDF) Land Pattern: Not Available Use pkgcode/variation: B6-6*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8530EBTJ2-T			Active	UCSP;6 pin;2 mm² Outline Drawing:21-0097 (PDF) Land Pattern: Not Available Use pkgcode/variation: B6-6*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8530EBTJJ+T			Active	UCSP;6 pin;2 mm² Outline Drawing:21-0097 (PDF) Land Pattern: Not Available Use pkgcode/variation: B6+6*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8530EBTJO-T			Active	UCSP;6 pin;2 mm² Outline Drawing:21-0097 (PDF) Land Pattern: Not Available Use pkgcode/variation: B6-6*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8530EBTKG-T			Active	UCSP;6 pin;2 mm² Outline Drawing:21-0097 (PDF) Land Pattern: Not Available Use pkgcode/variation: B6-6*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8530ETT8A-T			Active	TDFN-EP;6 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0058 (PDF) Use pkgcode/variation: T633-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8530ETTG2+			Active	TDFN-EP;6 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0058 (PDF) Use pkgcode/variation: T633+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8530ETTG2+T			Active	TDFN-EP;6 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0058 (PDF) Use pkgcode/variation: T633+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8530ETTG2-T			Active	TDFN-EP;6 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0058 (PDF) Use pkgcode/variation: T633-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8530ETTK2+T			Active	TDFN-EP;6 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0058 (PDF) Use pkgcode/variation: T633+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX8530ETTK2-T			Active	TDFN-EP;6 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0058 (PDF) Use pkgcode/variation: T633-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8530ETTP2+			Active	TDFN-EP;6 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0058 (PDF) Use pkgcode/variation: T633+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8530ETTP2+T			Active	TDFN-EP;6 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0058 (PDF) Use pkgcode/variation: T633+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8531EBTA8-T			Active	UCSP;6 pin;2 mm² Outline Drawing:21-0097 (PDF) Land Pattern: Not Available Use pkgcode/variation: B6-6*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8531EBTGG+T			Active	UCSP;6 pin;2 mm² Outline Drawing:21-0097 (PDF) Land Pattern: Not Available Use pkgcode/variation: B6+6*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8531EBTGGJ+T			Active	UCSP; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX8531EBTJJ+T			Active	UCSP;6 pin;2 mm² Outline Drawing:21-0097 (PDF) Land Pattern: Not Available Use pkgcode/variation: B6+6*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8531EBTJJ-T			Active	UCSP;6 pin;2 mm² Outline Drawing:21-0097 (PDF) Land Pattern: Not Available Use pkgcode/variation: B6-6*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8531ETTA8-T			Active	TDFN-EP;6 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0058 (PDF) Use pkgcode/variation: T633-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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