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MAX15031ATE-T

Description
Switching Voltage Regulators 80V 300mW Boost Conv/Current Mtr
Categorysemiconductor    Power management   
File Size492KB,17 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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MAX15031ATE-T Overview

Switching Voltage Regulators 80V 300mW Boost Conv/Current Mtr

MAX15031ATE-T Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerMaxim
Product CategorySwitching Voltage Regulators
RoHSDetails
Mounting StyleSMD/SMT
Package / CaseTQFN-EP-16
TopologyBoost
Minimum Operating Temperature- 40 C
Maximum Operating Temperature+ 125 C
PackagingReel
TypeVoltage Converter
NumOfPackaging1
Factory Pack Quantity2500
19-4299; Rev 2; 6/09
KIT
ATION
EVALU
BLE
AVAILA
80V, 300mW Boost Converter and Current
Monitor for APD Bias Applications
General Description
The MAX15031 consists of a constant-frequency pulse-
width modulating (PWM) step-up DC-DC converter with
an internal switch and a high-side current monitor with
high-speed adjustable current limiting. This device can
generate output voltages up to 76V and provides current
monitoring up to 4mA (up to 300mW). The MAX15031
can be used for a wide variety of applications such as
avalanche photodiode biasing, PIN biasing, or varactor
biasing, and LCD displays. The MAX15031 operates
from 2.7V to 11V.
The constant-frequency (400kHz), current-mode PWM
architecture provides low-noise output voltage that is
easy to filter. A high-voltage, internal power switch
allows this device to boost output voltages up to 76V.
Internal soft-start circuitry limits the input current when
the boost converter starts. The MAX15031 features a
shutdown mode to save power.
The MAX15031 includes a current monitor with more
than three decades of dynamic range and monitors cur-
rent 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 limit-
ing of the boost converter switch, undervoltage lockout,
and thermal shutdown if the die temperature reaches
+160°C.
The MAX15031 is available in a thermally enhanced
4mm x 4mm, 16-pin TQFN package and operates over
the -40°C to +125°C automotive temperature range.
Features
Input Voltage Range
+2.7V to +5.5V (Using Internal Charge Pump) or
+5.5V to +11V
Wide Output-Voltage Range from (V
IN
+ 1V) to 76V
Internal 1Ω (typ) 80V Switch
300mW Boost Converter Output Power
Accurate ±10% (500nA to 1mA) and ±3.5% (1mA
to 4mA) 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, 4mm x 4mm, 16-Pin
TQFN Package
MAX15031
Ordering Information
PART
MAX15031ATE+
TEMP RANGE
-40°C to +125°C
PIN-PACKAGE
16 TQFN-EP*
+Denotes
a lead(Pb)-free/RoHS-compliant package.
*EP
= Exposed pad.
Applications
CLAMP
Pin Configuration
RLIM
9
APD
Avalanche Photodiode Biasing and Monitoring
PIN Diode Bias Supplies
Low-Noise Varactor Diode Bias Supplies
FBON Modules
GPON Modules
LCD Displays
TOP VIEW
12
11
MOUT
10
BIAS 13
SHDN 14
PGND 15
LX 16
8
7
ILIM
CNTRL
FB
SGND
MAX15031
6
*EP
+
1
PWR
2
CP
3
CN
5
Typical Operating Circuits appear at end of data sheet.
4
IN
*EXPOSED PAD
THIN QFN
(4mm
×
4mm)
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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