Rainbow Electronics MAX17036 - Manual

General Description
The MAX17030/MAX17036 are 3/2-phase interleaved
Quick-PWM™ step-down VID power-supply controllers
for IMVP-6.5 notebook CPUs. Two integrated drivers and
the option to drive a third phase using an external driver
such as the MAX8791 allow for a flexible 3/2-phase con-
figuration depending on the CPU being supported.
True out-of-phase operation reduces input ripple-current
requirements and output-voltage ripple while easing
component selection and layout difficulties. The Quick-
PWM control provides instantaneous response to fast
load-current steps. Active voltage positioning reduces
power dissipation and bulk output capacitance require-
ments and allows ideal positioning compensation for tan-
talum, polymer, or ceramic bulk output capacitors.
The MAX17030/MAX17036 are intended for bucking
down the battery directly to create the core voltage.
The single-stage conversion method allows this device
to directly step down high-voltage batteries for the
highest possible efficiency.
A slew-rate controller allows controlled transitions
between VID codes. A thermistor-based temperature
sensor provides programmable thermal protection. An
output current monitor provides an analog current out-
put proportional to the sum of the inductor currents,
which in steady state is the same as the current con-
sumed by the CPU.
Applications
IMVP-6.5 SV and XE Core Power Supplies
High-Current Voltage-Positioned Step-Down
Converters
3 to 4 Li+ Cells Battery to CPU Core Supply
Converters
Notebooks/Desktops/Servers
Features
♦ Triple/Dual-Phase Quick-PWM Controllers
♦ 2 Internal Drivers + 1 External Driver
♦ ±0.5% V
OUT Accuracy Over Line, Load, and
Temperature
♦ 7-Bit IMVP-6.5 DAC
♦ Dynamic Phase Selection Optimizes Active/Sleep
Efficiency
♦ Transient Phase Overlap Reduces Output
Capacitance
♦ Transient Suppression Feature (MAX17036 Only)
♦ Integrated Boost Switches
♦ Active Voltage Positioning with Adjustable Gain
♦ Accurate Lossless Current Balance and
Current Limit
♦ Remote Output and Ground Sense
♦ Adjustable Output Slew-Rate Control
♦ Power-Good (IMVPOK), Clock Enable (CLKEN),
and Thermal-Fault (
VRHOT) Outputs
♦ IMVP-6.5 Power Sequencing and Timing
Compliant
♦ Output Current Monitor (IMON)
♦ Drives Large Synchronous Rectifier FETs
♦ 7V to 26V Battery Input Range
♦ Adjustable Switching Frequency (600kHz max)
♦ Undervoltage, Overvoltage, and Thermal-Fault
Protection
MAX17030/MAX17036
1/2/3-Phase Quick-PWM
IMVP-6.5 VID Controllers
________________________________________________________________ Maxim Integrated Products 1
BST1 LX1 DL1 V
DD
DH2 LX2 BST2 VRHOT DL2 DH1
THRM IMON
ILIM TIME
V
CC FB
FBAC GNDS CSP3 CSN3
SHDN
TON
DRSKP
PWM3
DPRSLPVR
PSI
CSP2
CSN2
CSP1
D6
D5
D4
D3
D2
D1
D0
PGD_IN
CSN1
PWRGD
MAX17030
MAX17036
THIN QFN
5mm x 5mm
+
TOP VIEW
35
36
34
33
12
11
13
14
1 2 4 5 6 7
27 28 29 30 26 24 23 22
3
25
37
38
39
40
32
15
31
16
17
18
19
20
8 9 10
21
CLKEN
Pin Configuration
Ordering Information
19-4577; Rev 0; 4/09
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
MAX17030GTL+ -40°C to +105°C 40 TQFN-EP*
MAX17036GTL+ -40°C to +105°C 40 TQFN-EP*
+ Denotes a lead-free(Pb)/RoHS-compliant package.
* EP = Exposed pad.
Quick-PWM is a trademark of Maxim Integrated Products, Inc.