MAX8598ETE+ Maxim Integrated Products, MAX8598ETE+ Datasheet - Page 2

• Manufacturer Part Number: MAX8598ETE+
• Description: IC CNTRLR STP DWN LDO 16-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8598ETE+

• Pwm Type: Controller
• Number Of Outputs: 1
• Frequency - Max: 1.4MHz
• Duty Cycle: 99.5%
• Voltage - Supply: 4.5 V ~ 28 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-TQFN Exposed Pad
• Frequency-max: 1.4MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ABSOLUTE MAXIMUM RATINGS
V+, ILIM to GND .....................................................-0.3V to +30V
AVL, VL to GND........................................................-0.3V to +6V
PGND to GND .......................................................-0.3V to +0.3V
FB, EN, POK, AIN-, AIN+, REFIN to GND ................-0.3V to +6V
AOUT, REFOUT, FREQ, SS, COMP to
BST to GND ............................................................-0.3V to +36V
DH to LX ....................................................-0.3V to (V
LX to GND ........................-2V (-2.5V for less than 50ns) to +30V
LX to BST..................................................................-6V to +0.3V
Low-Dropout, Wide-Input-Voltage,
Step-Down Controllers
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
V
unless otherwise noted.)
2
GENERAL
V+ Operating Range
V+/VL Operating Range
V+ Operating Supply Current
V+ Standby Supply Current
VL REGULATOR
Output Voltage
VL Undervoltage-Lockout
Trip Level
Thermal Shutdown
REFERENCE (MAX8597 only)
REFOUT Output Voltage
REFOUT Load Regulation
REFOUT Internal Discharge
Switch On-Resistance
CURRENT-LIMIT COMPARATOR (all current limits are tested at V
ILIM Sink Current
Comparator Input Offset
Voltage Error
SOFT-START
Soft-Start Source Current
Soft-Start Sink Current
FREQUENCY
Frequency
LX
V+
GND .....................................................-0.3V to (V
_______________________________________________________________________________________
- 0.2V, V
= V
VL
PARAMETER
= V
FB
AVL
= 0.65V, GND = PGND = 0V, C
= V
EN
= V
REFIN
V+ = VL
V
V
5.5V < V
Rising edge, typical hysteresis = 460mV
Rising temperature, typical hysteresis = 10°C
I
I
During VL UVLO
1.8V < V
V
V
V
R
R
R
= 5V, V
REFOUT
REFOUT
V+
V+
LX
SS
SS
FREQ
FREQ
FREQ
= 28V, V
= 100mV
= (0.6V or V
= 12V, VL unloaded, no MOSFETs connected, V
= 12V, VL unloaded, V
= 100kΩ
= 20.0kΩ
= 14.3kΩ
BST
V+
LX
= 150µA, V
= 10µA to 1mA
< 28V, V
< 28V, 1mA < I
= 6V, V
SS
BST
AVL
BST
= 0.01µF, R
REFIN
= V
LX
+ 0.3V)
+ 0.3V)
V+
BST
LX
)
= 1V, C
= V
+ 5V
CONDITIONS
= V
VL
LOAD
FB
LX
FREQ
= 4.5V or 5.5V
= 0V
VL
+ 5V
< 35mA
= 4.7µF, C
DL to PGND.................................................-0.3V to (V
Continuous Power Dissipation
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
V+
= 20kΩ, T
16- or 20-Pin Thin QFN
Up to +70°C (derate 16.9mW/°C above +70°C)........1349mW
= V
VL
= 4.5V and 5.5V)
REFOUT
A
= 0°C to +85°C, typical values are at T
= 1µF, V
FB
= 0V
AIN-
1100
MIN
4.05
2.49
180
150
800
-10
5.5
4.5
4.7
= V
3
3
AOUT
+160
1000
1400
TYP
2.50
200
200
3.4
2.0
5.0
4.2
15
, V
5
5
AIN+
MAX
1200
1700
28.0
4.35
2.51
+10
220
240
5.5
5.0
5.3
= 2.5V, V
10
7
7
A
VL
= +25°C,
UNITS
+ 0.3V)
kHz
mA
mA
mV
mV
µA
µA
µA
ILIM
°C
Ω
V
V
V
V
V
=