MAX15032ATA+T Maxim Integrated Products, MAX15032ATA+T Datasheet

IC DC-DC CONV STEP-UP 8-TDFN

MAX15032ATA+T

Manufacturer Part Number
MAX15032ATA+T
Description
IC DC-DC CONV STEP-UP 8-TDFN
Manufacturer
Maxim Integrated Products
Type
Step-Up (Boost)r
Datasheet

Specifications of MAX15032ATA+T

Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
6.6 ~ 36 V
Current - Output
1A
Frequency - Switching
500kHz
Voltage - Input
2.7 ~ 11 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-TDFN Exposed Pad
Power - Output
1.95W
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX15032 constant-frequency, pulse-width-modu-
lating (PWM), low-noise boost converter is intended for
low-voltage systems that need a locally generated high
voltage. This device is capable of generating low-noise,
high output voltages, with an output power capability
up to 600mW with a 2.9V input voltage. This device can
be used for a wide variety of applications, such as PIN
or varactor diode biasing and LCD displays. The
MAX15032 operates from +2.7V to +11V.
The constant-frequency (500kHz), current-mode PWM
architecture provides low-noise output voltage that is
easy to filter. A high-voltage internal lateral DMOS
power switch allows this device to boost output volt-
ages up to 36V. The MAX15032 features a shutdown
mode to save power.
The MAX15032 is available in a small thermally
enhanced 3mm x 3mm 8-pin TDFN package and is
specified for operation over the -40°C to +125°C auto-
motive temperature range.
19-4232; Rev 0; 8/08
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.
TOP VIEW
Avalanche Photodiode Biasing
PIN Diode Bias Supplies
Low-Noise Varactor Diode Bias Supplies
STB Audio IC Supplies
LCD Displays
________________________________________________________________ Maxim Integrated Products
PGND
+
General Description
LX
1
8
MAX15032
Pin Configuration
GND
CP
7
2
TDFN
CN
FB
6
3
500kHz, 36V Output, 600mW PWM
Applications
SHDN
IN
4
5
Step-Up DC-DC Converter
♦ Input Voltage Range
♦ Wide Adjustable Output Voltage Range: (V
♦ Output Power: ≥ 600mW for V
♦ Internal 0.5Ω (typ), 40V Switch
♦ Constant PWM Frequency Provides Easy Filtering
♦ 500kHz (typ) Switching Frequency
♦ 0.5µA (max) Shutdown Current
♦ Internal Soft-Start
♦ Small Thermally Enhanced 3mm x 3mm 8-Pin
+ Denotes a lead-free/RoHS-compliant package.
T = Tape and reel.
* EP = Exposed pad.
MAX15032ATA+T
V
IN
to 36V
in Low-Noise Applications
TDFN Package
= 2.7V TO 5.5V
+2.7V to +5.5V (Using Internal Charge Pump)
+5.5V to +11V
PART
C
IN
Typical Operating Circuit
-40°C to +125°C
TEMP RANGE
IN
SHDN
PGND
Ordering Information
MAX15032
GND
L1
CN
CP
LX
FB
IN
PIN-
PACKAGE
8 TDFN-EP*
≥ 2.9V
C
D1
CP
Features
R1
R2
IN
MARK
+BKP
C
TOP
+ 1V)
V
36V
OUT
OUT
1

Related parts for MAX15032ATA+T

MAX15032ATA+T Summary of contents

Page 1

... Constant PWM Frequency Provides Easy Filtering in Low-Noise Applications ♦ 500kHz (typ) Switching Frequency ♦ 0.5µA (max) Shutdown Current ♦ Internal Soft-Start ♦ Small Thermally Enhanced 3mm x 3mm 8-Pin TDFN Package Applications PART MAX15032ATA+T + Denotes a lead-free/RoHS-compliant package Tape and reel Exposed pad 2.7V TO 5.5V IN ...

Page 2

Output, 600mW PWM Step-Up DC-DC Converter ABSOLUTE MAXIMUM RATINGS IN to GND ...............................................................-0.3V to +12V LX to PGND ............................................................-0.3V to +40V FB to GND ..............................................................-0.3V to +12V SHDN to GND ..............................................-0. GND .............................................................-0.3V to ...

Page 3

Output, 600mW PWM ELECTRICAL CHARACTERISTICS (continued +3.3V +3.3V 10µF, PGND = GND = 0V, T SHDN IN IN are +25°C. See the Typical Operating Circuit .) (Note 2) A ...

Page 4

Output, 600mW PWM Step-Up DC-DC Converter (V = 3.3V 4.7µ 143kΩ 6.2kΩ +25°C, unless otherwise noted.) A EFFICIENCY vs. LOAD CURRENT 12V ...

Page 5

L1 = 4.7µ 143kΩ 6.2kΩ +25°C, unless otherwise noted.) A LOAD-TRANSIENT RESPONSE MAX15032 toc13 RISE TIME = 10ns V (AC-COUPLED) 200mV/div I OUT 5mA/div 100ms/div SWITCH ON-RESISTANCE vs. TEMPERATURE ...

Page 6

Output, 600mW PWM Step-Up DC-DC Converter PIN NAME Drain of Internal 40V n-Channel DMOS. Connect inductor/diode to LX. Minimize trace area reduce switching noise emission. Signal Ground. Connect directly to the local ground ...

Page 7

Output, 600mW PWM Detailed Description The MAX15032 constant-frequency, current-mode, pulse-width-modulating (PWM) boost converter is intended for low-voltage systems that often need a locally generated high voltage. This device is capable of generating low-noise, high-output voltage required for PIN ...

Page 8

Output, 600mW PWM Step-Up DC-DC Converter Determining Peak Inductor Current If the boost converter remains in the discontinuous mode of operation, then the approximate peak inductor current, I (A), is represented by the formula LPEAK below: × × ...

Page 9

Output, 600mW PWM discharge equals 50% (proportions could vary), calcu- late the output capacitance and ESR required for a spec- ified ripple using the following equations: ⎡ OUT LPEAK μ = ⎢ ...

Page 10

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2008 Maxim Integrated Products ...

Related keywords