MAX8655ETN+ Maxim Integrated Products, MAX8655ETN+ Datasheet - Page 4

• Manufacturer Part Number: MAX8655ETN+
• Description: IC STEP-DN REG 25A 56-TQFN-EP
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX8655ETN+

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 0.7 ~ 5.5 V
• Current - Output: 25A
• Frequency - Switching: 200kHz ~ 1MHz
• Voltage - Input: 4.5 ~ 25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 56-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Highly Integrated, 25A, Wide-Input,
Internal MOSFET, Step-Down Regulator
ELECTRICAL CHARACTERISTICS (continued)
(V
Note 2: Specifications are 100% production tested at T
4
OSCILLATOR
Switching Frequency
Minimum Off-Time
Minimum On-Time
FSYNC Synchronization Range
FSYNC Input High Pulse Width
FSYNC Input Low Pulse Width
FSYNC Rise/Fall Time
SYNCO Phase Shift
SYNCO Output Low Level
SYNCO Output High Level
FSYNC Input Low
FSYNC Input High
THERMAL PROTECTION
Thermal Shutdown
Thermal-Shutdown Hysteresis
POK
POK Threshold
POK Output Voltage, Low
POK Leakage Current, High
OVP
OVP Threshold Voltage
OVP, Leakage Current, High
MODE CONTROL
MODE Logic-Level Low
MODE Logic-Level High
MODE Input Current
SHUTDOWN CONTROL
EN Logic-Level Low
EN Logic-Level High
EN Input Current
IN
_______________________________________________________________________________________
= 12V, V
design.
PARAMETER
BST
- V
LX
= 6.5V, T
A
= -40°C to +85°C, circuit of Figure 4, typical values are at T
R
R
Measured at LX
Measured at LX
I
I
Rising temperature
REFIN = AVL, V
V
V
V
REFIN = AVL
V
V
4.5V ≤ V
4.5V ≤ V
V
4.5V ≤ V
4.5V ≤ V
V
V
SYNCO
SYNCO
R E F IN
FB
POK
REFIN
OVP
MODE
EN
EN
FSYNC
FSYNC
= 0.6V, I
= 0V
= 28V
= 0.8V
= 5.5V
= 0.75V to 1.5V , V
= 0.7V to 1.5V
= 0 to V
= 5mA
= -5mA
= 21.0kΩ
= 143kΩ
AVL
AVL
AVL
AVL
≤ 5.5V
≤ 5.5V
≤ 5.5V
≤ 5.5V
POK
AVL
FB
= 2mA
rising, typical hysteresis is 3%
A
= +85°C. Limits over the operating temperature range are guaranteed by
CONDITIONS
F B
r i si ng , typ i cal hyster esi s i s 3%
A
= +25°C, unless otherwise noted.) (Note 2)
V
AV L
88.7
MIN
800
160
160
100
100
629
770
110
2.5
1.8
-1
-1
2
- 1V
+160
1000
TYP
91.7
200
235
180
650
800
115
1.5
75
15
25
MAX
1200
1200
94.7
0.45
240
100
100
671
200
840
120
500
0.4
0.4
0.4
6.0
+1
+1
1
D eg r ees
UNITS
kHz
kHz
mV
mV
mV
µA
nA
µA
µA
ns
ns
ns
ns
ns
°C
°C
%
%
V
V
V
V
V
V
V
V