MAX1717 Maxim, MAX1717 Datasheet - Page 2

• Manufacturer Part Number: MAX1717
• Description: Dynamically Adjustable / Synchronous Step-Down Controller for Notebook CPUs
• Manufacturer: Maxim

ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +30V
V
D0–D4, A/B, VGATE, to GND ..................................-0.3V to +6V
SKP/SDN to GND ...................................................-0.3V to +16V
ILIM, FB, FBS, CC, REF, GNDS,
DL to GND ..................................................-0.3V to (V
BST to GND ............................................................-0.3V to +36V
DH to LX .....................................................-0.3V to (BST + 0.3V)
Dynamically Adjustable, Synchronous
Step-Down Controller for Notebook CPUs
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.
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V+ = +15V, V
2
CC
PWM CONTROLLER
BIAS AND REFERENCE
Input Voltage Range
DC Output Voltage Accuracy
(Note 1)
Remote Sense Voltage Error
Line Regulation Error
FB Input Resistance
FBS Input Bias Current
GNDS Input Bias Current
TIME Frequency Accuracy
On-Time (Note 2)
Minimum Off-Time (Note 2)
Minimum Off-Time (Note 2)
Quiescent Supply Current (V
Quiescent Supply Current (V
Quiescent Battery Supply
Current (V+)
Shutdown Supply Current (V
Shutdown Supply Current (V
Shutdown Battery Supply
Current (V+)
Reference Voltage
TON, TIME to GND .................................-0.3V to (V
, V
_______________________________________________________________________________________
DD
to GND .....................................................-0.3V to +6V
PARAMETER
CC
DD
CC
DD
)
)
)
)
CC
Battery voltage, V+
V
V+ = 4.5V to 28V,
includes load
regulation error
FB to FBS or GNDS to GND = 0 to 25mV
V
150kHz nominal, R
380kHz nominal, R
38kHz nominal, R
V+ = 5V, FB = 2V, TON = GND (1000kHz)
V+ = 24V, FB = 2V
TON = V
TON = GND (1000kHz)
Measured at V
Measured at V
SKP/SDN = 0
SKP/SDN = 0
SKP/SDN = 0, V
V
= V
CC
CC
CC
DD
, V
= 4.5V to 5.5V, V
= 4.5V to 5.5V, no REF load
DD
= SKP/SDN = +5V, V
CC
, open, or REF (200kHz, 300kHz, or 550kHz)
CC
DD
CC
CC
DD
, FB forced above the regulation point
, FB forced above the regulation point
TIME
TIME
TIME
= V
+ 0.3V)
+ 0.3V)
BATT
CONDITIONS
DAC codes from 1.3V to 2V
DAC codes from 0.925V to 1.275V
= 470kΩ
DD
= 120kΩ
= 47kΩ
= 0 or 5V
= 4.5V to 28V
OUT
TON = REF (550kHz)
TON = open (300kHz)
TON = V
= 1.6V, T
LX to BST..................................................................-6V to +0.3V
REF Short Circuit to GND ...........................................Continuous
Continuous Power Dissipation
Operating Temperature Range ..........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature.........................................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
24-Pin QSOP (derate 9.5mW/°C above +70°C)...........762mW
CC
A
(200kHz)
= 0°C to +85°C, unless otherwise noted.)
1.98
MIN
-1.2
-0.2
115
375
135
260
375
-12
-12
4.5
-1
-1
-8
2
TYP
180
425
155
289
418
400
300
700
<1
<1
<1
25
3
5
2
2
MAX
1200
2.02
265
+12
+12
475
173
318
461
500
375
5.5
1.2
0.2
28
+8
40
1
1
5
5
5
5
UNITS
mV
mV
kΩ
µA
µA
µA
µA
µA
µA
µA
µA
ns
ns
ns
%
%
%
V
V