MAX15061 Maxim Integrated Products, MAX15061 Datasheet
MAX15061
Manufacturer Part Number
MAX15061
Description
300mW Boost Converter and Current Monitor
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX15061.pdf
(16 pages)
www.DataSheet4U.com
The MAX15061 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 MAX15061
can be used for a wide variety of applications such as
avalanche photodiode biasing, PIN biasing, or varactor
biasing, and LCD displays. The MAX15061 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 MAX15061 features a
shutdown mode to save power.
The MAX15061 includes a current monitor with more
than three decades of dynamic range and monitors cur-
rent ranging from 500nA to 2mA 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 MAX15061 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.
19-5034; Rev 0; 10/09
Typical Operating Circuits appear at end of data sheet.
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.
Avalanche Photodiode Biasing and Monitoring
PIN Diode Bias Supplies
Low-Noise Varactor Diode Bias Supplies
FBON Modules
GPON Modules
LCD Displays
80V, 300mW Boost Converter and Current
________________________________________________________________ Maxim Integrated Products
General Description
Monitor for APD Bias Applications
Applications
o Input Voltage Range
o Wide Output-Voltage Range from (V
o Internal 1Ω (typ) 80V Switch
o 300mW Boost Converter Output Power
o Accurate ±10% (500nA to 1mA) and ±3.5% (1mA
o Resistor-Adjustable Ultra-Fast APD Current Limit
o Open-Drain Current-Limit Indicator Flag
o 400kHz Fixed Switching Frequency
o Constant PWM Frequency Provides Easy Filtering
o Internal Soft-Start
o 2µA (max) Shutdown Current
o -40°C to +125°C Temperature Range
o Small Thermally Enhanced, 4mm x 4mm, 16-Pin
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* EP = Exposed pad.
MAX15061ATE+
to 4mA) High-Side Current Monitor
(1µs Response Time)
in Low-Noise Applications
TQFN Package
TOP VIEW
*CONNECT EXPOSED PAD TO SGND.
+2.7V to +5.5V (Using Internal Charge Pump) or
+5.5V to +11V
PART
SHDN
PGND
BIAS
LX
13
14
15
16
+
12
1
(4mm
-40°C to +125°C
Ordering Information
TEMP RANGE
THIN QFN
MAX15061
11
2
×
Pin Configuration
4mm)
10
3
*EP
9
4
IN
PIN-PACKAGE
8
7
6
5
Features
16 TQFN-EP*
+ 1V) to 76V
ILIM
CNTRL
FB
SGND
1