MAX8720ETX+ Maxim Integrated Products, MAX8720ETX+ Datasheet - Page 2

• Manufacturer Part Number: MAX8720ETX+
• Description: IC CNTRL VID STP DWN 36-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8720ETX+

• Applications: Controller, CPU GPU
• Voltage - Input: 2 ~ 28 V
• Number Of Outputs: 1
• Voltage - Output: 0.28 ~ 1.85 V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 36-TQFN Exposed Pad
• Output Voltage: 0.275 V to 1.85 V
• Input Voltage: 2 V to 28 V
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ABSOLUTE MAXIMUM RATINGS
V
V
AGND to PGND .....................................................-0.3V to +0.3V
V+ to PGND............................................................-0.3V to +30V
SHDN to AGND ......................................................-0.3V to +16V
D0–D5, PGOOD, SUS, SKIP to AGND .....................-0.3V to +6V
FB, FBS, GNDS to AGND ...........................-0.3V to (V
CC, ILIM, REF, TIME to AGND ...................-0.3V to (V
S0, S1, TON to AGND ................................-0.3V to (V
BST to PGND..........................................................-0.3V to +36V
LX to BST..................................................................-6V to +0.3V
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V+ = 15V, SHDN = SKIP = V
values are at T
Dynamically Adjustable 6-Bit VID
Step-Down Controller
Note 1: For the MAX8720EEI, AGND and PGND refer to a single pin designated GND.
2
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
PWM CONTROLLER
Input Voltage Range
DC Output Voltage Accuracy
Line Regulation Error
Remote-Sense Voltage Error
FBS Input Bias Current
GNDS Input Bias Current
FB Input Resistance
TIME Frequency Accuracy
On-Time (Note 2)
CC
DD
_______________________________________________________________________________________
to AGND............................................................-0.3V to +6V
to PGND............................................................-0.3V to +6V
PARAMETER
A
= +25°C.)
SYMBOL
t
ON
DD
Battery voltage, V+
V
V+ = 4.5V to 28V,
includes load
regulation error
V
FB to FBS or AGND to GNDS = 0 to 25mV
FB, FBS
GNDS
150kHz, R
818kHz, R
38kHz, R
V+ = 5V, FB = 1.25V, TON = GND
(1000kHz)
V+ = 12V,
FB = 1.25V
(Note 1)
CC
CC
= V
CC
CC
CC
, V
= 4.5V to 5.5V, V+ = 4.5V to 28V
CC
+ 0.3V)
+ 0.3V)
+ 0.3V)
DD
= +5V, V
TIME
TIME
TIME
= 470kΩ
CONDITIONS
= 120kΩ
= 22kΩ
OUT
DH to LX .....................................................-0.3V to (BST + 0.3V)
DL to PGND................................................-0.3V to (V
REF Short Circuit to AGND.........................................Continuous
Continuous Power Dissipation (T
Operating Temperature
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +165°C
Lead Temperature (soldering, 10s) .................................+300°C
DAC codes from
0.9V to 1.85V
DAC codes from
0.45V to 0.875V
DAC codes from
0.275V to 0.425V
= 1.25V, T
28-Pin QSOP (derate 10.8mW/°C above +70°C)........860mW
36-Pin TQFN (derate 26.3mW/°C above +70°C) .....2105mW
Extended Temperature Range .......................-40°C to +85°C
TON = REF
(550kHz)
TON = open
(300kHz)
TON = V
(200kHz)
CC
A
= 0°C to +85°C, unless otherwise noted. Typical
MIN
-0.2
115
230
165
320
465
4.5
-10
-18
-12
-12
-1
-1
-8
2
A
= +70°C)
TYP
180
260
190
355
515
5
3
MAX
+0.2
+10
+18
+12
+12
265
290
215
390
565
5.5
+1
+1
+8
28
DD
UNITS
+ 0.3V)
mV
mV
mV
µA
µA
kΩ
ns
%
%
V