MAX1917EEE Maxim Integrated Products, MAX1917EEE Datasheet - Page 3

• Manufacturer Part Number: MAX1917EEE
• Description: Other Power Management
• Manufacturer: Maxim Integrated Products

Specifications of MAX1917EEE

• Case: ssop
• Dc: 03+
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(V+ = 12V, V
BST = VL. Specifications are for T
Thermal Shutdown
SOFT-START
ILIM Ramp Period
OSCILLATOR
Oscillator Frequency
On Time (Note 1)
Minimum Off Time (Note 1)
CURRENT LIMIT
Current-Limit Threshold
(Positive Direction)
Current-Limit Threshold
(Negative Direction)
ILIM Input Current
V
Output Voltage
Line Regulation
RMS Output Current
Bypass Capacitor
DRIVER
DH Gate-Driver On-Resistance
DL Gate-Driver On-Resistance
(Source)
DL Gate-Driver On-Resistance
(Sink)
Dead Time
FSEL LOGIC
Logic Input Current
Logic GND Level
Logic REF Level
Logic Float Level
Controller for DDR Memory and Termination Supplies
L
REGULATOR
Tracking, Sinking and Sourcing, Synchronous Buck
PARAMETER
EN/HSD
= V
_______________________________________________________________________________________
DDR
= 2.5V, C
A
= 0°C to +85°C. Typical values are at T
Rising temperature, typical hysteresis = 15°C
Ramps the ILIM trip threshold from 20% to 100%
in 20% increments
FSEL = VL
FSEL = unconnected
FSEL = REF
FSEL = GND
FSEL = VL
FSEL not connected
FSEL = REF
FSEL = GND
LX to PGND, ILIM = VL
LX to PGND, R
LX to PGND, R
LX to PGND, ILIM = VL, with percentage of positive
current-limit threshold
5.5V < V+ < 14V
1mA < I
5.5V < V+ < 14V, I
ESR < 100mΩ
V
DL high state
DL low state
DL rising
DL falling
FSEL = VREF
FSEL floating
BST
VL
- V
= 4.7µF, C
VL
LX
< 35mA
= 5V
ILIM
ILIM
VTTR
VL
= 100kΩ
= 400kΩ
= 10mA
CONDITIONS
= 1µF, C
REF
= 0.22µF, V
A
= +25°C, unless otherwise specified.)
FSEL
= 0, ILIM = VL, PGND = LX = POK = GND,
2.18
1.45
1.09
0.82
1.65
3.15
MIN
170
-90
4.8
2.2
90
40
-3
+160
TYP
1.67
1.25
0.91
-110
0.75
200
300
400
550
350
100
200
1.7
2.5
5.0
0.2
1.4
1.6
50
32
30
5
MAX
2.83
1.89
1.41
1.00
-130
1.25
2.35
3.85
400
110
230
5.2
2.5
0.5
60
35
3
3
UNITS
kHz
mV
mA
ms
µA
µA
°C
µs
ns
µF
ns
%
%
Ω
Ω
Ω
V
V
V
V
3