MAX603ESA+ by Analog Devices

5V/3.3V or Adjustable, Low-Dropout, Low-IQ, 500mA Linear Regulators


The MAX603/MAX604 low-dropout, low quiescent current, linear regulators supply 5V, 3.3V, or an adjustable output for currents up to 500mA. They are available in a 1.8W SO package. Typical dropouts are 320mV at 5V and 500mA, or 240mV at 3.3V and 200mA. Quiescent currents are 15µA typ and 35µA max. Shutdown turns off all circuitry and puts the regulator in a 2µA off mode. A unique protection scheme limits reverse currents when the input voltage falls below the output. Other features include foldback current limiting and thermal overload protection. The output is preset at 3.3V for the MAX604 and 5V for the MAX603. In addition, both devices employ Dual Mode™ operation, allowing user-adjustable outputs from 1.25V to 11V using external resistors. The input voltage supply range is 2.7V to 11.5V. The MAX603/MAX604 feature a 500mA P-channel MOSFET pass transistor. This transistor allows the devices to draw less than 35µA over temperature, independent of the output current. The supply current remains low because the P-channel MOSFET pass transistor draws no base currents (unlike the PNP transistors of conventional bipolar linear regulators). Also, when the input-to-output voltage differential becomes small, the internal P-channel MOSFET does not suffer from excessive base current losses that occur with saturated PNP transistors.

Where to Buy

Prices starting from US$4.86

Distributor Stock
Logo for Farnell
Farnell
from US$4.86
8
in stock
Buy Now
Logo for Analog Devices
Analog Devices
from US$4.92
740
in stock
Buy Now
Logo for Newark Electronics
Newark Electronics
from US$4.90
8
in stock
Buy Now
Logo for element14
element14
from US$6.20
8
in stock
Buy Now

Features

500mA Output Current, with Foldback Current Limiting
High-Power (1.8W) 8-Pin SO Package
Dual Mode™ Operation: Fixed or Adjustable Output from 1.25V to 11V
Large Input Range (2.7V to 11.5V)
Internal 500mA P-Channel Pass Transistor
15µA Typical Quiescent Current
2µA (Max) Shutdown Mode
Thermal Overload Protection
Reverse-Current Protection

Specifications

VIN (V) (min) 2.7
VIN (V) (max) 11.5
Adj. VOUT (V) (min) 1.3
Adj. VOUT (V) (max) 11.5
Rated ILOAD (mA) 500
Preset VOUT (V) 5
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.32
ICC (µA) (max) 50
Low Batt./ Pwr. Fail Out No
Watchdog No
Reverse Batt. Protect. No
Oper. Temp. (°C) 0 to +70
Package/Pins PDIP/8SOIC (N)/8
BudgetaryPrice (See Notes) 2.18


MAX603ESA+ Power Management ICs - PMIC by Analog Devices

LINEAR REG LDO ADJ 500MA 603

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

The MAX603/MAX604 low-dropout, low quiescent current, linear regulators supply 5V, 3.3V, or an adjustable output for currents up to 500mA. They are available in a 1.8W SO package. Typical dropouts are 320mV at 5V and 500mA, or 240mV at 3.3V and 200mA. Quiescent currents are 15μA typ and 35μA max. Shutdown turns off all circuitry and puts the regulator in a 2μA off mode. A unique protection scheme limits reverse currents when the input voltage falls below the output. Other features include foldback current limiting and thermal overload protection. The output is preset at 3.3V for the MAX604 and 5V for the MAX603. In addition, both devices employ Dual Mode™ operation, allowing user-adjustable outputs from 1.25V to 11V using external resistors. The input voltage supply range is 2.7V to 11.5V. The MAX603/MAX604 feature a 500mA P-channel MOSFET pass transistor. This transistor allows the devices to draw less than 35μA over temperature, independent of the output current. The supply current remains low because the P-channel MOSFET pass transistor draws no base currents (unlike the PNP transistors of conventional bipolar linear regulators). Also, when the input-to-output voltage differential becomes small, the internal P-channel MOSFET does not suffer from excessive base current losses that occur with saturated PNP transistors.

Specifications

Output Type Adjustable
Input Voltage Min 2.7V
Input Voltage Max 11.5V
Fixed Output Voltage Nom. -
Adjustable Output Voltage Min 1.25V
Adjustable Output Voltage Max 11V
Output Current 500mA
Dropout Voltage Vdo 320mV
LDO Regulator Case Style SOIC
No. of Pins 8Pins
Operating Temperature Min -40°C
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)
Base Number 603
IC Temperature Range Industrial
No. of Outputs 1Outputs
Operating Temperature Range -40°C to +85°C
Output Current Max 0.5A
Output Voltage Adjustable Range 1.25V to 11V
Output Voltage Max 11V
Output Voltage Min 1.25V
Primary Input Voltage 11.5V
Supply Voltage Min 2.7V
Termination Type Surface Mount Device
Voltage Regulator Type Adjustable LDO

Alternative Descriptions

5V/3.3V or Adjustable, Low-Dro | Analog Devices
Linear Reg, Ldo, Adj, 500Ma, 603 | Newark Electronics
LINEAR REG, LDO, ADJ, 500MA, 603 | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX603ESA+ ?

Additional datasheets, footprints and schematics for MAX603ESA+ are listed on our Part Details page. You can also find images and similar parts to MAX603ESA+ on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for MAX603ESA+ on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MAX603ESA+ price breaks, MOQs, lead times, inventory and SKUs from distributors.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the MAX603ESA+ you can contact the distributor directly for product support, shipping queries etc.

Is the MAX603ESA+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX603ESA+ have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX603ESA+ .

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for MAX603ESA+ often in real-time on the comparison pages.

What if I can't find stock of MAX603ESA+ ?

You can fill out our help required form which you can use to request a quote for MAX603ESA+ from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.

We use cookies to improve your experience. See our privacy policy.
Okay