MAX17020ETJ+T Maxim Integrated Products, MAX17020ETJ+T Datasheet - Page 5

• Manufacturer Part Number: MAX17020ETJ+T
• Description: IC CTLR PWM DUAL STEP DN 32-TQFN
• Manufacturer: Maxim Integrated Products
• Series: Quick-PWM™r

Specifications of MAX17020ETJ+T

• Applications: Power Supplies
• Current - Supply: 1mA
• Voltage - Supply: 6 V ~ 24 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, no load on LDO, RTC, OUT1, OUT2, and REF, V
LDOREFIN = GND, ONLDO = IN, ON1 = ON2 = V
(Note 3)
OUT2 FAULT DETECTION
OUT2 Overvoltage Trip
Threshold
OUT2 Overvoltage
Fault-Propagation Delay
OUT2 Undervoltage-Protection
Trip Threshold
OUT2 Overvoltage
Fault-Propagation Delay
OUT2 Output Undervoltage
Fault-Propagation Delay
Dynamic REFIN2 Transition
PGOOD Blanking Threshold
PGOOD2 Lower Trip Threshold
PGOOD2 Propagation Delay
PGOOD2 Output-Low Voltage
PGOOD2 Leakage Current
CURRENT LIMIT
ILIM_ Adjustment Range
ILIM_ Current
Valley Current-Limit Threshold
(Adjustable)
Current-Limit Threshold
(Negative)
Ultrasonic Current-Limit Threshold
Current-Limit Threshold
(Zero Crossing)
PARAMETER
_______________________________________________________________________________________
Dual Quick-PWM Step-Down Controller
with Low-Power LDO, RTC Regulator
V
V
SYMBOL
V
t
I
OVP(OUT2)
UVP(OUT2)
V
PGOOD2
PGOOD2
NEG(US)
VALLEY
V
V
t
t
t
I
V
OVP
OVP
UVP
ILIM
NEG
ILIM
ZX
OUT2 forced 50mV above trip threshold
Preset mode: with respect to
error-comparator threshold
Tracking mode: with respect to REFIN2 voltage
OUT2 forced 50mV above trip threshold
OUT2 forced 50mV below trip threshold
Preset mode (REFIN2 = RTC or V
respect to error-comparator threshold
Dynamic transition,
Tracking mode: with respect to REFIN2 voltage
Minimum overvoltage threshold
Blanking initiated; REFIN2 deviation from the
internal target voltage (error-comparator
threshold); hysteresis = 5mV
Preset mode: with respect to error-comparator
threshold, falling edge, hysteresis = 1%
Tracking mode: with respect to REFIN2
voltage, falling edge, hysteresis = 12mV
OUT2 forced 50mV beyond PGOOD1 trip
threshold, falling edge
V
impedance), I
OUT2 = REFIN2 (PGOOD2 high impedance),
PGOOD2 forced to 5.5V, T
V
With respect to valley current-limit threshold,
V
V
AGND
OUT1
AGND
OUT2
CC
, T
= REF or V
= V
= V
= V
A
- V
- V
CC
= 0°C to +85°C, unless otherwise noted. Typical values are at T
OUT2
LX
LX
REFIN2
_
_,
SINK
= V
CONDITIONS
CC
- 150mV (PGOOD2 low
FB1
= 4mA
and OUT2 > REFIN2
= GND or OPEN/REF
= 0.77V, V
IN
R
R
R
ILIM
ILIM
ILIM
= 12V, V
A
_ = 100k
_ = 200k
_ = 400k
= +25°C
REFIN2
CC
DD
): with
= V
= 0.70V
CC
= V
SECFB
-250
-175
MIN
170
180
-19
0.2
13
65
44
90
= 5V, V
V
TYP
REF
0.20
-300
-150
-120
±25
200
100
200
0.7
-16
16
10
70
10
10
10
50
25
5
3
REFIN2
+
MAX
-350
-125
230
110
220
-13
0.3
2.0
19
75
56
= 1.0V, BYP =
1
A
= +25°C.)
UNITS
mV
mV
mV
mV
mV
mV
mV
µA
µA
µs
µs
µs
µs
%
%
%
%
V
V
V
V
5