Datasheet 搜索 > DC/DC转换器 > Maxim Integrated（美信） > MAX5035BASA+T 数据手册 > MAX5035BASA+T 产品手册 1/17 页
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MAX5035BASA+T 产品手册 - Maxim Integrated（美信）
制造商:
Maxim Integrated（美信）
分类:
DC/DC转换器
封装:
SOIC-8
描述:
MAX5035BASA+T
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MAX5035BASA+T数据手册
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General Description
The MAX5035 easy-to-use, high-efficiency, high-volt-
age, step-down DC-DC converter operates from an
input voltage up to 76V and consumes only 270µA qui-
escent current at no load. This pulse-width modulated
(PWM) converter operates at a fixed 125kHz switching
frequency at heavy loads, and automatically switches
to pulse-skipping mode to provide low quiescent cur-
rent and high efficiency at light loads. The MAX5035
includes internal frequency compensation simplifying
circuit implementation. The device uses an internal low-
on-resistance, high-voltage, DMOS transistor to obtain
high efficiency and reduce overall system cost. This
device includes undervoltage lockout, cycle-by-cycle
current limit, hiccup mode output short-circuit protec-
tion, and thermal shutdown.
The MAX5035 delivers up to 1A output current. The out-
put current may be limited by the maximum power dis-
sipation capability of the package. External shutdown is
included, featuring 10µA (typ) shutdown current. The
MAX5035A/B/C versions have fixed output voltages of
3.3V, 5V, and 12V, respectively, while the MAX5035D
features an adjustable output voltage from 1.25V to
13.2V.
The MAX5035 is available in space-saving 8-pin SO
and 8-pin plastic DIP packages and operates over the
automotive (-40°C to +125°C) temperature range.
Applications
Automotive
Consumer Electronics
Industrial
Distributed Power
Features
♦ Wide 7.5V to 76V Input Voltage Range
♦ Fixed (3.3V, 5V, 12V) and Adjustable
(1.25V to 13.2V) Versions
♦ 1A Output Current
♦ Efficiency Up to 94%
♦ Internal 0.4Ω High-Side DMOS FET
♦ 270µA Quiescent Current at No Load, 10µA
Shutdown Current
♦ Internal Frequency Compensation
♦ Fixed 125kHz Switching Frequency
♦ Thermal Shutdown and Short-Circuit Current
Limit
♦ 8-Pin SO and PDIP Packages
MAX5035
1A, 76V, High-Efficiency MAXPower
Step-Down DC-DC Converter
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
19-2988; Rev 3; 5/09
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.
EVALUATION KIT
AVAILABLE
PART TEMP RANGE
PIN-
PACKAGE
OU TPU T
VO LTA GE
( V)
MAX5035AUSA 0°C to +85°C 8 SO
MAX5035AUPA 0°C to +85°C 8 PDIP
MAX5035AASA -40°C to +125°C 8 SO
M AX 5035AAS A/V + -40°C to +125°C 8 SO
3.3
MAX5035BUSA 0°C to +85°C 8 SO
MAX5035BUPA 0°C to +85°C 8 PDIP
MAX5035BASA -40°C to +125°C 8 SO
M AX 5035BAS A/V + -40°C to +125°C 8 SO
5.0
1
2
3
4
BST
VD
SGND
FB
8
7
6
5
LX
TOP VIEW
V
IN
GND
ON/OFF
MAX5035
SO/PDIP
Pin Configuration
MAX5035
GND
BST
LX
V
IN
SGND
FB
D1
50SQ100
VD
100μH
V
OUT
5V
V
IN
7.5V TO 76V
68μF
0.1μF
0.1μF
68μF
ON
OFF
R1
R2
ON/OFF
Typical Operating Circuit
+
Denotes lead(Pb)-free/RoHS-compliant package.
Ordering Information continued at end of data sheet.
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