MAX1533ETJ+ Maxim Integrated Products, MAX1533ETJ+ Datasheet - Page 8

• Manufacturer Part Number: MAX1533ETJ+
• Description: IC POWER SUPPLY CONTROLER 32TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX1533ETJ+

• Applications: Power Supply Controller
• Voltage - Input: 4.5 ~ 26 V
• Current - Supply: 15µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Product: Power Monitors
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Accuracy: 1 %
• Sense Voltage (max): 5.5 V
• Supply Current (max): 35 uA
• Supply Voltage (max): 26 V
• Supply Voltage (min): 6 V
• Case: QFN
• Dc: 05+
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

High-Efficiency, 5x Output, Main Power-Supply
Controllers for Notebook Computers
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
I
Note 1: The MAX1533/MAX1537 cannot operate over all combinations of frequency, input voltage (V
Note 2: When the inductor is in continuous conduction, the output voltage has a DC regulation level lower than the error-comparator
Note 3: Specifications are guaranteed by design, not production tested.
Note 4: Specifications to -40°C are guaranteed by design, not production tested.
8
LDO5
FAULT DETECTION
Output Overvoltage Trip
Threshold
Output Undervoltage-Protection
Trip Threshold
PGOOD Lower Trip Threshold
PGOOD Output Low Voltage
PGDLY Pulldown Resistance
PGDLY Trip Threshold
GATE DRIVERS
DH_ Gate-Driver On-Resistance
DL_ Gate-Driver On-Resistance
INPUTS AND OUTPUTS
Logic Input Voltage
Fault Enable Logic Input Voltage
SHDN Input Trip Level
ON_ Input Voltage
FSEL Three-Level Input Logic
_______________________________________________________________________________________
= I
large input-to-output differentials and high-switching frequency settings, the required on-time may be too short to maintain
the regulation specifications. Under these conditions, a lower operating frequency must be selected. The minimum on-time
must be greater than 150ns, regardless of the selected switching frequency. On-time and off-time specifications are mea-
sured from 50% point to 50% point at the DH_ pin with LX_ = GND, V
to LX_. Actual in-circuit times may differ due to MOSFET switching speeds.
threshold by 50% of the ripple. In discontinuous conduction (SKIP = GND, light load), the output voltage has a DC regula-
tion level higher than the trip level by approximately 1% due to slope compensation.
LDO3
PARAMETER
= I
LDOA
IN
= no load, T
= 12V, both SMPS enabled, V
A
= -40°C to +85°C, unless otherwise noted.) (Note 4)
SYMBOL
R
R
DH
DL
OVP = GND, with respect to error-
comparator threshold
With respect to error-comparator threshold
With respect to error-comparator threshold,
hysteresis = 1%
I
BST_ - LX_ forced to 5V
DL_, high state
DL_, low state
SKIP, hysteresis = 600mV
OVP, UVP, ONA
Rising trip level
Falling trip level
Clear fault level
SMPS off level
Delay start level (REF)
SMPS on level
High
REF
GND
SINK
CC
= 4mA
= 5V, FSEL = REF, SKIP = GND, V
CONDITIONS
BST_
High
Low
High
Low
= 5V, and a 250pF capacitor connected from DH_
ILIM_
V
= V
-14.0
REF-
0.7 x
CC
0.95
MIN
+65
V
0.2
2.4
1.1
1.9
2.4
+8
1.7
CC
- 0.2
LDO5
IN
), and output voltage. For
, V
INA
= 15V, V
REF+
MAX
1.05
+15
+75
-7.0
0.4
0.2
0.8
0.4
2.2
0.8
1.6
2.1
2.3
0.4
25
5
5
3
LDOA
UNITS
= 12V,
%
%
%
Ω
Ω
Ω
V
V
V
V
V
V
V