MAX17017,MAX17017GTM+

Part No.:
MAX17017,MAX17017GTM+
Download:
Download
Description:
Quad-Output Controller for Low-Power Architecture
File Size:
782 K
Page:
31 Pages
Logo:
Maker:
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
PCB Prototype

July 19, 2018:

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PCB Datasheet:1PCB Datasheet:1PCB Datasheet:1
19-4121; Rev 2; 6/09
KIT
ATION
EVALU
BLE
AVAILA
Quad-Output Controller for
Low-Power Architecture
General Description
Features
o
Fixed-Frequency, Current-Mode Controllers
o
5.5V to 28V Input Range (Step-Down) or 3V to 5V
Input Range (Step-Up)
o
1x Step-Up or Step-Down Controller
o
1x Internal 5A
P-P
Step-Down Regulator
o
1x Internal 3A
P-P
Step-Down Regulator
o
1x 2A Source/Sink Linear Regulator with Dynamic
REFIN
o
Internal BST Diodes
o
Internal 5V, 50mA Linear Regulator
o
Fault Protection—Undervoltage, Overvoltage,
Thermal, Peak Current Limit
o
Independent Enable Inputs and Power-Good
Outputs
o
Voltage-Controlled Soft-Start
o
High-Impedance Shutdown
o
10µA (typ) Shutdown Current
MAX17017
The MAX17017 is a quad-output controller for ultra-
mobile portable computers (UMPCs) that rely on a low-
power architecture. The MAX17017 provides a compact,
low-cost controller capable of providing four indepen-
dent regulators—a main stage, a 3A
P-P
internal step-
down, a 5A
P-P
internal step-down, and a 2A source/sink
linear regulator.
The main regulator can be configured as either a step-
down converter (for 2 to 4 Li+ cell applications) or as a
step-up converter (for 1 Li+ cell applications). The inter-
nal switching regulators include 5V synchronous
MOSFETs that can be powered directly from a single Li+
cell or from the main 3.3V/5V power stages. Finally, the
linear regulator is capable of sourcing and sinking 2A to
support DDR termination requirements or to generate a
fixed output voltage.
The step-down converters use a peak current-mode,
fixed-frequency control scheme—an easy to implement
architecture that does not sacrifice fast-transient
response. This architecture also supports peak current-
limit protection and pulse-skipping operation to maintain
high efficiency under light-load conditions.
Separate enable inputs and independent open-drain
power-good outputs allow flexible power sequencing. A
soft-start function gradually ramps up the output volt-
age to reduce the inrush current. Disabled regulators
enter high-impedance states to avoid negative output
voltage created by rapidly discharging the output
through the low-side MOSFET. The MAX17017 also
includes output undervoltage, output overvoltage, and
thermal-fault protection.
The MAX17017 is available in a 48-pin, 6mm x 6mm
thin QFN package.
Ordering Information
PART
MAX17017GTM+
TEMP RANGE
-40°C to +105°C
PIN-PACKAGE
48 TQFN-EP*
+Denotes
a lead(Pb)-free/RoHS-compliant package.
*EP
= Exposed pad.
Pin Configuration
TOP VIEW
POKB
POKA
26
BSTB
BSTA
DHA
DLA
FBB
LXB
LXB
LXB
LXA
FBA
25
24 CSPA
23 CSNA
22 AGND
21 REF
20 FREQ
19 UP/DN
18 INA
17 V
CC
16 BYP
15 LDO5
14 INLDO
EXPOSED PAD = GND
1
POKC
2
BSTC
3
LXC
4
LXC
5
LXC
6
LXC
7
OUTD
8
OUTD
9
IND
10
FBD
11
VTTR
12
REFIND
13 SHDN
36
ONB 37
SYNC 38
ONA 39
INBC 40
INBC 41
INBC 42
INBC 43
V
DD
44
POKD 45
OND 46
ONC 47
FBC 48
35
34
33
32
31
30
29
28
27
Applications
1-to-4 Li+ Cell Battery-Powered Devices
Low-Power Architecture
Ultra-Mobile PC (UMPC)
Portable Gaming
Notebook and Subnotebook Computers
PDAs and Mobile Communicators
MAX17017
+
THIN QFN
________________________________________________________________
Maxim Integrated Products
1
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.