max5083atet Maxim Integrated Products, Inc., max5083atet Datasheet - Page 3

• Manufacturer Part Number: max5083atet
• Description: 1.5a, 40v, Maxpower Step-down Dc-dc Converters
• Manufacturer: Maxim Integrated Products, Inc.

ELECTRICAL CHARACTERISTICS (continued)
(V
are at T
Note 1: 100% production tested at T
OSCILLATOR
Frequency
Maximum Duty Cycle
SYNC High-Level Voltage
SYNC Low-Level Voltage
SYNC Frequency Range
PWM Modulator Gain
Ramp Level Shift (Valley)
POWER SWITCH
Switch On-Resistance
Switch Gate Charge
Switch Leakage Current
BST Leakage Current
CHARGE PUMP
C- Output Voltage Low
C- Output Voltage High
DVREG to C+ On-Resistance
LX to PGND On-Resistance
CURRENT-LIMIT COMPARATOR
Pulse-Skip Threshold
Cycle-by-Cycle Current Limit
Number of Consecutive ILIM
Events to Hiccup
Hiccup Timeout
INTERNAL VOLTAGE REGULATOR
Output Voltage
Line Regulation
Load Regulation
Dropout Voltage
THERMAL SHUTDOWN
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
IN
= V
A
ON/OFF
= + 25°C.) (Note 1)
PARAMETER
= 12V, V
_______________________________________________________________________________________
REG
= V
DVREG
A
SYMBOL
= +25°C and T
, V
D
f
V
SYNC
I
I
f
PFM
ILIM
SW
MAX
REG
1.5A, 40V, MAXPower Step-Down
SYNC
= PGND = SGND, T
V
V
V
V
f
V
V
V
V
MAX5082 only, sinking 10mA
MAX5082 only, relative to DVREG,
sourcing 10mA
MAX5082 only, sourcing 10mA
Sinking 10mA
MAX5082
MAX5083
V
V
I
V
V
Temperature rising
SYNC
REG
SYNC
SYNC
SYNC
SYNC
BST
BST
IN
BST
IN
IN
IN
IN
= 40V, V
= 5.5V to 40V, MAX5082
= 9.0V to 40V, MAX5083
= 4.5V, I
= 7.5V, I
A
= 0 to 20mA
- V
- V
= V
= +125°C. Limits at -40°C are guaranteed by design.
= 150kHz to 350kHz
= 0V
= 0V, V
= 0V, V
= 0V, V
LX
LX
LX
= 6V
= 6V
= V
REG
REG
LX
IN
IN
IN
CONDITIONS
= V
IN
= 4.5V, MAX5082
= 20mA, MAX5082
= 20mA, MAX5083
= 7.5V, MAX5083
≤ 40V
= 40V
A
BST
= T
= 0V
J
= -40°C to +125°C, unless otherwise noted. Typical values
DC-DC Converters
MIN
4.75
225
150
100
2.2
1.9
7.6
87
87
87
+160
TYP
250
200
512
0.3
0.3
2.7
10
20
6
4
5
8
MAX
5.25
0.25
275
350
300
0.8
0.6
0.1
0.1
3.5
8.4
0.5
0.5
10
10
10
12
1
1
periods
UNITS
Clock
mV/V
kHz
kHz
V/V
mA
nC
µA
µA
°C
°C
%
Ω
Ω
Ω
V
V
V
V
V
A
V
V
V
3