MAXIM MAX17019 High-Input-Voltage Quad-Output Controller Specifications Data Sheet
Summary
The MAX17019 is a high-input-voltage quad-output controller designed for advanced power management in embedded and automotive systems. This highly efficient component features up to 38V input and provides four independent, fixed-frequency step-down regulators—including internal 5A, 3A, and 2A outputs—perfect for battery-powered devices. The manual details complex architecture specifics, flexible power sequencing controls, built-in fault protection (like UVLO/OVLO), and critical PCB layout guidelines to ensure reliable system integration.
Page 1 Text Content
19-4225; Rev 0; 8/08
EVALUATION KIT AVAILABLE
High-Input-Voltage Quad-Output Controller General Description Features
The MAX17019 is a high-input-voltage quad-output con- Fixed-Frequency, Current-Mode Controllers
troller (up to 38V). The MAX17019 provides a compact,
5.5V to 38V Input Range (Step-Down)
low-cost controller capable of providing four indepen-
1x Step-Down Controller
dent regulators—a main stage, a 3AP-P internal step-
1x Internal 5AP-P Step-Down Regulator
down, a 5AP-P internal step-down, and a 2A source/sink linear regulator. The input voltage is up to 38V. This 1x Internal 3AP-P Step-Down Regulator makes it an excellent choice for automotive applications.
1x 2A Source/Sink Linear Regulator with Dynamic The internal switching regulators include 5V synchronous REFIN
MOSFETs that can be powered directly from a single Li+
Internal BST Diodes
cell or from the main 3.3V/5V power stages. Finally, the
Internal 5V 50m A Linear Regulator
linear regulator is capable of sourcing and sinking 2A to
Fault Protection—Undervoltage, Overvoltage,
support DDR termination requirements or to generate a
Thermal, Peak Current Limit
fixed output voltage.
Independent Enable Inputs and Power-Good
The step-down converters use a peak current-mode,
Outputs
fixed-frequency control scheme—an easy to implement
architecture that does not sacrifice fast-transient Voltage-Controlled Soft-Start
response. This architecture also supports peak current- High-Impedance Shutdown limit protection and pulse-skipping operation to maintain
10µA (typ) Shutdown Current
high efficiency under light-load conditions.
PO KC FB
Separate enable inputs and independent open-drain Ordering Information
BS TC PO KB
power-good outputs allow flexible power sequencing. A
LX BS TB
soft-start function gradually ramps up the output volt- PART TEMP RANGE PIN-PACKAGE
age to reduce the inrush current. Disabled regulators LX LX
MAX17019ATM+ -40°C to +125°C 48 TQFN-EP*
enter high-impedance states to avoid negative output LX LX
+Denotes a lead-free/Ro HS-compliant package.
voltage created by rapidly discharging the output
LX LX *EP = Exposed pad.
through the low-side MOSFET. The MAX17019 also
OU TD DL
includes output undervoltage, output overvoltage, and Pin Configuration
OU TD BS TA
thermal-fault protection.
IN LX TOP VIEW
The MAX17019 is available in a 48-pin, 6mm x 6mm
FB DH
thin QFN package.
VT TR PO KA
Applications
RE FI ND FB
ONB CSPA
Automotive Battery-Powered Devices
SYNC CSNA
Embedded Control Systems
ONA AGND
Set-Top Boxes
INBC REF
INBC FREQ
MAX17019
INBC UP/DN
INBC INA
VDD VCC
POKD BYP
OND LDO5
ONC INLDO
FBC EXPOSED PAD = PGND SHDN
THIN QFN
Maxim Integrated Products
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.
Page Summary Contents For MAXIM MAX17019 High-Input-Voltage Quad-Output Controller Specifications Data Sheet
Manual Details
| Brand | QUAD |
|---|---|
| Pages | 25 |
| File Size | 691.44 KB |
| Published | May 31, 2026 |
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Frequently Asked Questions
What is the input voltage range for the MAX17019?
It supports an input voltage range from 5.5V to 38V.
Can the chip regulate power in multiple ways?
Yes, it includes four independent regulators: main stage (step-down), internal 5A step-down, internal 3A step-down, and a 2A source/sink linear regulator.
What specific fault protections does the MAX17019 offer?
It provides undervoltage, overvoltage, thermal, peak current limit, and fault protection features.
Does the device support advanced power sequencing?
Yes, it has separate enable inputs and independent open-drain power-good outputs to allow flexible power sequencing.