›

MAX15059

76V, 300mW Boost Converter and Current Monitor for APD Bias Applications

High-Voltage Boost Converter and Current Monitor Reduce Cost and Board Space for Avalanche Photo-Diode Applications

Data Sheet

Please check latest availability status for a specific part variant.

Overview

Description

The MAX15059 constant-frequency pulse-width modulating (PWM) step-up DC-DC converter features an internal switch and a high-side current monitor with high-speed adjustable current limiting. This device is capable of generating output voltages up to 76V (300mW for the MAX15059A and 200mW for the MAX15059B) and provides current monitoring up to 4mA. The MAX15059 operates from 2.8V to 5.5V.

The constant-frequency (400kHz) current-mode PWM architecture provides low-noise-output voltage that is easy to filter. A high-voltage internal power MOSFET allows this device to boost output voltages up to 76V. Internal soft-start circuitry limits the input current when the boost converter starts. The MAX15059 features a shutdown mode to save power.

The MAX15059 includes a current monitor with more than three decades of dynamic range and monitors current ranging from 500nA to 4mA with high accuracy. Resistor-adjustable current limiting protects the APD from optical power transients. A clamp diode protects the monitor's output from overvoltage conditions. Other protection features include cycle-by-cycle current limiting of the boost converter switch, undervoltage lockout (UVLO), and thermal shutdown if the die temperature reaches +125°C.

The MAX15059 is available in a thermally enhanced, lead-free, 16-pin TQFN-EP package and operates over the -40°C to +125°C temperature range.

MAX15059: Typical Operating Circuit

Enlarge+

Key Features

Input Voltage Range: +2.8V to +5.5V
Wide Output-Voltage Range from (V_IN + 5V) to 76V
Internal 1Ω (typ) 80V MOSFET
Boost Converter Output Power: 300mW
200mW Version Available for Smaller Inductor
Accurate ±5% (1:1 and 5:1) High-Side Current Monitor
Resistor-Adjustable Ultra-Fast APD Current Limit (1µs Response Time)
Open-Drain Current-Limit Indicator Flag
400kHz Fixed-Switching Frequency
Constant PWM Frequency Provides Easy Filtering in Low-Noise Applications
Internal Soft-Start
2µA (max) Shutdown Current
-40°C to +125°C Temperature Range
Small, Thermally Enhanced, 3mm x 3mm, Lead-Free, 16-Pin TQFN-EP Package

Applications/Uses

Avalanche Photodiode Biasing and Monitoring
FBON Modules
GPON Modules
Low-Noise Varactor Diode Bias Supply
PIN Diode Bias Supply

Parametric Specs

Part Number

V_IN
(V)

V_OUT1
(V)

I_OUT1
(A)

Output Adjust. Method

Switch Type

I_CC
(mA)

Shutdown Mode Supply Current
(µA)

DC-DC Outputs

Oper. Freq.
(kHz)

Package/Pins

Budgetary
Price

min

max

min

max

typ

max

See Notes

MAX15059

2.8

5.5

0.005

Resistor

Voltage

Internal

0.6

0.003

400

TQFN/16

$1.88 @1k

See All Step-Up Switching Regulators (98)

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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Design Resources

MAX15059EVKIT: Evaluation Kit for the MAX15059A and MAX15059B

Quality And Environmental

Device	Fab Process	Technology	Sample size	Rejects	FIT at 25°C	FIT at 55°C

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

Order

Status:

Package:

Temperature:

Related Resources

New Products

MAX20343
Ultra-Low Quiescent Current, Low Noise 3.5W Buck-Boost Regulator

Extend System Run Time
Low, Continuous Noise Profile
Adaptable Load Transient Response

MAX20006E
36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Automotive Step-Down Converters

Multiple Functions for Small Size
High Precision
Robust for the Automotive Environment

MAX20008E
36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Automotive Step-Down Converters

Multiple Functions for Small Size
High Precision
Robust for the Automotive Environment

MAX20004E
36V, 220kHz to 2.2MHz, 4A/6A/8A Fully Integrated Automotive Step-Down Converters

Multiple Functions for Small Size
High Precision
Robust for the Automotive Environment

MAX17630
4.5V to 36V, 1A, High-Efficiency, Synchronous Step-Down DC-DC Converter

Reduces External Components and Total Cost
Reduces Number of DC-DC Regulators to Stock
Reduces Power Dissipation

MAX20011
Automotive Single 8A/12A Step-Down Converter with High Efficiency

High-Efficiency DC-DC Converter
Up to 12A peak output current:
Differential Remote Voltage Sensing

MAX15158Z
High-Voltage Multiphase Boost Controller

Wide Operating Range
Integration Reduces Design Footprint
Robust Fault Protection Improves Quality and Reliability

MAX20079
Automotive 36V 3.5A Buck Converter with 3.5μA I_Q

Synchronous DC-DC Converter with Integrated FETs
Small Solution Size Saves Space
PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

MAX20026, MAX20026S
Automotive Quad, Low-Voltage Step-Down DC-DC Converters with Low-Noise LDO

High-Integration Shrinks Solution Size
Performance Designed for Automotive Point-of-Load Regulation
Low-Noise Features Improve EMI Performance

MAX20026S
Automotive Quad, Low-Voltage Step-Down DC-DC Converters with Low-Noise LDO

High-Integration Shrinks Solution Size
Performance Designed for Automotive Point-of-Load Regulation
Low-Noise Features Improve EMI Performance

MAX20801
MPP Tracking DC-DC Converter

Performs MPPT on 20-24 Series Connected PV Cells
Fast MPPT Reacts Quickly to Changing Conditions
Integrated Voltage-Limiting Clamps Output Voltage

MAX20800
MPP Tracking DC-DC Converter

Performs MPPT on 20-24 Series Connected PV Cells
Fast MPPT Reacts Quickly to Changing Conditions
Integrated Voltage-Limiting Clamps Output Voltage

MAX20059
72V, 1A, Automotive Synchronous Step-Down DC-DC Converter

Synchronous DC-DC Converters with Integrated FETs
Flexibility
Active-Low RESET Output and EN Input (26V max) Simplify Power Sequencing

MAX20058
60V, 1A, Automotive Synchronous Step-Down DC-DC Converter

Synchronous DC-DC Converters with Integrated FETs
Flexibility
Active-Low RESET Output and EN Input (26V max) Simplify Power Sequencing

MAXM15066
4.5V to 60V, 300mA Step-Down uSLIC Power Module

Easy to Use
High Efficiency
Flexible Design

MAXM15067
4.5V to 60V, 300mA Step-Down uSLIC Power Module

Easy to Use
High Efficiency
Flexible Design

MAXM15065
4.5V to 60V, 300mA Step-Down uSLIC Power Module

Easy to Use
High Efficiency
Flexible Design

MAXM17904
4.5V to 24V, 300mA Himalaya uSLIC Step-Down Power Module

Easy to Use
High Efficiency
Flexible Design

MAXM17905
4.5V to 24V, 300mA Himalaya uSLIC Step-Down Power Module

Easy to Use
High Efficiency
Flexible Design

MAXM17906
4.5V to 24V, 300mA Himalaya uSLIC Step-Down Power Module

Easy to Use
High Efficiency
Flexible Design

MAX20048
Automotive 40V, 55µA I_Q, 2.2MHz, H-Bridge Buck-Boost Controller

Meets Stringent Automotive Quality and Reliability Requirements
Efficient Solution in a Small Solutions Size
Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements

MAX20010C
Automotive Single 6A Step-Down Converters

Fully Integrated, Synchronous 6A DC-DC Converter Enables Small Solution Size
High-Precision Voltage Regulator for Applications Processors
Low-Noise Feature Reduces EMI

MAX20010D
Automotive Single 6A Step-Down Converters

Fully Integrated, Synchronous 6A DC-DC Converter Enables Small Solution Size
High-Precision Voltage Regulator for Applications Processors
Low-Noise Feature Reduces EMI

MAX20039
Automotive, 2V to 36V, 2.2MHz, 0.6A/1.2A Buck-Boost Converters with Integrated H-Bridge Architecture

Meets Stringent Automotive Quality and Reliability Requirements
Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements (B and D version only)
High Switching Frequency Allows Use of Small External Components

MAX20040
Automotive, 2V to 36V, 2.2MHz, 0.6A/1.2A Buck-Boost Converters with Integrated H-Bridge Architecture

Meets Stringent Automotive Quality and Reliability Requirements
Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements (B and D version only)
High Switching Frequency Allows Use of Small External Components

MAX20029B
Automotive Quad/Triple/Quad Low-Voltage Step-Down DC-DC Converters