Datasheet MAX5035 (Maxim)
| Manufacturer | Maxim |
| Description | 1A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converter |
| Pages / Page | 17 / 1 — 1A, 76V, High-Efficiency MAXPower. Step-Down DC-DC Converter. General … |
| File Format / Size | PDF / 553 Kb |
| Document Language | English |
1A, 76V, High-Efficiency MAXPower. Step-Down DC-DC Converter. General Description. Features
Model Line for this Datasheet
- MAX5035AASA+ MAX5035AASA+T MAX5035AUPA+ MAX5035AUSA+ MAX5035AUSA+T MAX5035BASA+ MAX5035BASA+T MAX5035BASA/V+ MAX5035BASA/V+T MAX5035BUPA+ MAX5035BUSA+ MAX5035BUSA+T MAX5035CASA+ MAX5035CASA+T MAX5035CUPA+ MAX5035CUSA+ MAX5035CUSA+T MAX5035DASA+ MAX5035DASA+T MAX5035DASA/V+ MAX5035DASA/V+T MAX5035DUPA+ MAX5035DUSA+ MAX5035DUSA+T MAX5035EASA+ MAX5035EASA+T MAX5035EUSA+ MAX5035EUSA+T
Text Version of Document
EVALUATION KIT AVAILABLE AVAILABLE MAX5035
1A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converter General Description Features
The MAX5035 easy-to-use, high-efficiency, high-volt- o
Wide 7.5V to 76V Input Voltage Range
age, step-down DC-DC converter operates from an o
Fixed (3.3V, 5V, 12V) and Adjustable
input voltage up to 76V and consumes only 270µA qui- escent current at no load. This pulse-width modulated
(1.25V to 13.2V) Versions
(PWM) converter operates at a fixed 125kHz switching o
1A Output Current
frequency at heavy loads, and automatically switches o
Efficiency Up to 94%
to pulse-skipping mode to provide low quiescent cur- rent and high efficiency at light loads. The MAX5035 o
Internal 0.4Ω High-Side DMOS FET
includes internal frequency compensation simplifying o
270µA Quiescent Current at No Load, 10µA
circuit implementation. The device uses an internal low-
Shutdown Current
on-resistance, high-voltage, DMOS transistor to obtain high efficiency and reduce overall system cost. This o
Internal Frequency Compensation
device includes undervoltage lockout, cycle-by-cycle o
Fixed 125kHz Switching Frequency
current limit, hiccup mode output short-circuit protec- o
Thermal Shutdown and Short-Circuit Current
tion, and thermal shutdown.
Limit
The MAX5035 delivers up to 1A output current. The out- put current may be limited by the maximum power dis- o
8-Pin SO and PDIP Packages
sipation capability of the package. External shutdown is included, featuring 10µA (typ) shutdown current. The
Ordering Infor Or mation dering Information
MAX5035A/B/C versions have fixed output voltages of 3.3V, 5V, and 12V, respectively, while the MAX5035D/E
OU TPU T PIN-
versions have an adjustable output voltage from 1.25V
PART TEMP RANGE VO LTA GE PACKAGE
to 13.2V.
( V)
The MAX5035 is available in space-saving 8-pin SO MAX5035AUSA 0°C to +85°C 8 SO and 8-pin plastic DIP packages and operates over the MAX5035AUPA 0°C to +85°C 8 PDIP automotive (-40°C to +125°C) temperature range. 3.3 MAX5035AASA -40°C to +125°C 8 SO M AX 5035AAS A/V + -40°C to +125°C 8 SO
Applications
MAX5035BUSA 0°C to +85°C 8 SO
Functional Diagrams
Automotive MAX5035BUPA 0°C to +85°C 8 PDIP 5.0 Consumer Electronics MAX5035BASA -40°C to +125°C 8 SO M AX 5035BAS A/V + -40°C to +125°C 8 SO Industrial /V denotes an automotive qualified part. Distributed Power +Denotes a lead(Pb)-free/RoHS-compliant package.
Ordering Information continued at end of data sheet. Typical Operating Circuit Pin Configuration
VIN 7.5V TO 76V V 68 IN TOP VIEW µF BST 0.1µF MAX5035 100µH VOUT BST 1 8 LX R1 LX D1 5V 50SQ100 VD 2 7 VIN MAX5035 ON/OFF 68µF SGND 3 6 GND ON FB R2 VD FB 4 5 ON/OFF OFF SGND GND 0.1µF
Pin Configurations appear at end of data sheet. Functional Diagrams continued at end of data sheet. SO/PDIP
UCSP is a trademark of Maxim Integrated Products, Inc. For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com. 19-2988; Rev 5; 5/11
1A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converter General Description Features
The MAX5035 easy-to-use, high-efficiency, high-volt- o
Wide 7.5V to 76V Input Voltage Range
age, step-down DC-DC converter operates from an o
Fixed (3.3V, 5V, 12V) and Adjustable
input voltage up to 76V and consumes only 270µA qui- escent current at no load. This pulse-width modulated
(1.25V to 13.2V) Versions
(PWM) converter operates at a fixed 125kHz switching o
1A Output Current
frequency at heavy loads, and automatically switches o
Efficiency Up to 94%
to pulse-skipping mode to provide low quiescent cur- rent and high efficiency at light loads. The MAX5035 o
Internal 0.4Ω High-Side DMOS FET
includes internal frequency compensation simplifying o
270µA Quiescent Current at No Load, 10µA
circuit implementation. The device uses an internal low-
Shutdown Current
on-resistance, high-voltage, DMOS transistor to obtain high efficiency and reduce overall system cost. This o
Internal Frequency Compensation
device includes undervoltage lockout, cycle-by-cycle o
Fixed 125kHz Switching Frequency
current limit, hiccup mode output short-circuit protec- o
Thermal Shutdown and Short-Circuit Current
tion, and thermal shutdown.
Limit
The MAX5035 delivers up to 1A output current. The out- put current may be limited by the maximum power dis- o
8-Pin SO and PDIP Packages
sipation capability of the package. External shutdown is included, featuring 10µA (typ) shutdown current. The
Ordering Infor Or mation dering Information
MAX5035A/B/C versions have fixed output voltages of 3.3V, 5V, and 12V, respectively, while the MAX5035D/E
OU TPU T PIN-
versions have an adjustable output voltage from 1.25V
PART TEMP RANGE VO LTA GE PACKAGE
to 13.2V.
( V)
The MAX5035 is available in space-saving 8-pin SO MAX5035AUSA 0°C to +85°C 8 SO and 8-pin plastic DIP packages and operates over the MAX5035AUPA 0°C to +85°C 8 PDIP automotive (-40°C to +125°C) temperature range. 3.3 MAX5035AASA -40°C to +125°C 8 SO M AX 5035AAS A/V + -40°C to +125°C 8 SO
Applications
MAX5035BUSA 0°C to +85°C 8 SO
Functional Diagrams
Automotive MAX5035BUPA 0°C to +85°C 8 PDIP 5.0 Consumer Electronics MAX5035BASA -40°C to +125°C 8 SO M AX 5035BAS A/V + -40°C to +125°C 8 SO Industrial /V denotes an automotive qualified part. Distributed Power +Denotes a lead(Pb)-free/RoHS-compliant package.
Ordering Information continued at end of data sheet. Typical Operating Circuit Pin Configuration
VIN 7.5V TO 76V V 68 IN TOP VIEW µF BST 0.1µF MAX5035 100µH VOUT BST 1 8 LX R1 LX D1 5V 50SQ100 VD 2 7 VIN MAX5035 ON/OFF 68µF SGND 3 6 GND ON FB R2 VD FB 4 5 ON/OFF OFF SGND GND 0.1µF
Pin Configurations appear at end of data sheet. Functional Diagrams continued at end of data sheet. SO/PDIP
UCSP is a trademark of Maxim Integrated Products, Inc. For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com. 19-2988; Rev 5; 5/11
