MAX16948AGTE/V+ by Analog Devices

Automotive Dual Remote Antenna Current-Sense LDO/Switch


The MAX16948 is a dual high-voltage, current-sensing low dropout linear regulator (LDO)/switch designed to operate with an input voltage range from 4.5V to 28V (45V load dump tolerant). The device provides phantom power over coax cable to remote radio frequency low-noise amplifiers (LNAs) in automotive systems with a maximum current of 300mA per channel. The device also provides a fixed regulated output voltage of 8.5V or an adjustable 1V to 12.5V output voltage. The device can also be configured as a switch. The device monitors the load current and provides an analog output current proportional to the sensed load current. Accurate internal current limits protect the input supply against both overcurrent and short-circuit conditions. The device features an open-drain error output for each channel to indicate to the microcontroller (µC) when a fault has occurred. The device features short-to-battery protection to latch off the internal LDO/switch during a short-to-battery event. During a thermal overload, the device reduces power dissipation by going into thermal shutdown. It includes two independent active-low, high-voltage-compatible shutdown inputs to place each channel in a low-power shutdown mode. The device is available in a 16-pin TQFN package with exposed pad, a 16-pin QSOP package with exposed pad, or a 16-pin QSOP package and is fully specified over the -40°C to +105°C temperature range.

Where to Buy

Prices starting from US$4.43

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Features

2-Channel LDO/Switch with Precision-Adjustable Current-Sense (Up to 300mA Per Channel)
Wide Input Voltage Range: 4.5V to 28V (45V Load Dump Tolerant)
On/Off Switching or Regulation of Phantom Power Under µC Control
Reverse Current Protection
Output Short-to-Battery Protection
Load Current Monitoring to Detect Open-Load/Normal/Short-Circuit Conditions
Open-Drain Error Status Signaling to µC
Input Overvoltage Shutdown
High Power-Supply Rejection Ratio (73dB)

Specifications

Current Limit (mA) (max) 300
# Power Switches 2
Fault Indicator Yes
Current Limit Accuracy (%) 10
Current Limit Set By Resistor
RON (Ω) (typ) 1.45
VSUPPLY (V) (min) 4.5
VSUPPLY (V) (max) 28
Oper. Temp. (°C) -40 to +105
Package/Pins QSOP/16TQFN/16
BudgetaryPrice (See Notes) 4.14


MAX16948AGTE/V+ - Integrated Circuits by Analog Devices

CURRENT SENSE LDO/SWITCH TQFN-16

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

Specifications

IC Function Remote Antenna Current Sense LDO/Switch
Supply Voltage Min 4.5V
Supply Voltage Max 28V
IC Package Type TQFN
No. of Pins 16Pins
Operating Temperature Min -40°C
Operating Temperature Max 105°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

AUTOMOTIVE DUAL REMOTE ANTENNA | Analog Devices
Current Sense Ldo/Switch, Tqfn-16 | Newark Electronics
CURRENT SENSE LDO/SWITCH, TQFN-16 | Farnell

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX16948AGTE/V+ ?

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Is the MAX16948AGTE/V+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX16948AGTE/V+ have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14, Farnell and Avnet Silica have stock available or on a lead time for MAX16948AGTE/V+ .

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