MAX5098AATJ+T Maxim Integrated Products, MAX5098AATJ+T Datasheet - Page 4

• Manufacturer Part Number: MAX5098AATJ+T
• Description: IC CONV BUCK/BOOST DL 32TQFN-EP
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck), Step-Up (Boost)r

Specifications of MAX5098AATJ+T

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 2
• Voltage - Output: 0.8 ~ 0.85 V, 4.5 ~ 28 V
• Current - Output: 1A, 2A
• Frequency - Switching: 200kHz ~ 2.2MHz
• Voltage - Input: 4.5 ~ 19 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Power - Output: 2.76W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Dual, 2.2MHz, Automotive Buck or Boost
Converter with 80V Load-Dump Protection
ELECTRICAL CHARACTERISTICS (continued)
(VDRV = V
C
T
4
On-Resistance High-Side
MOSFET Converter 2
Minimum Converter 1 Output
Current
Minimum Converter 2 Output
Current
Converter 1/Converter 2
MOSFET DRAIN_ Leakage
Current
Internal Weak Low-Side Switch
On-Resistance
INTERNAL SWITCH CURRENT LIMIT
Internal Switch Current-Limit
Converter 1
Internal Switch Current-Limit
Converter 2
SWITCHING FREQUENCY
PWM Maximum Duty Cycle
Switching Frequency Range
Switching Frequency
Switching Frequency Accuracy
SYNC Frequency Range
SYNC High Threshold
SYNC Low Threshold
SYNC Input Leakage
SYNC Input Minimum Pulse
Width
Clock Output Phase Delay
SYNC to Source 1 Phase Delay
Clock Output High Level
Clock Output Low Level
J
BYPASS
= -40°C to +125°C, unless otherwise noted.) (Note 2)
_______________________________________________________________________________________
= 0.22µF (low ESR), C
PARAMETER
L
, V+ = V
L
= IN_HIGH = 5.2V or V+ = IN_HIGH = 5.2V to 19V, EN_ = V
VL
= 4.7µF (ceramic), C
SYNC
I
CKO
R
SYNC_LEAK
SYMBOL
V
V
t
ONLSSW_
V
SYNCIN
V
f
I
I
D
R
SYNCH
I
SYNCL
SYNC
OUT1
OUT2
I
I
CKOH
LK12
CKOL
f
f
CL1
CL2
ON2
MAX
SW
SW
PHASE
PHASE
I
V
I
V
V
V
V
V
I
V+ = V
V
V+ = V
V
SYNC = SGND, f
R
(FSEL_1 = V
5.6kΩ < R
10kΩ < R
SYNC input frequency is twice the
individual converter frequency,
FSEL_1 = V
Switching Frequency section)
R
2/SOURCE2 waveform
R
V
V
SWITCH
SWITCH
LSSW
SOURCE2
SOURCE2
OUT1
OUT2
EN1
SOURCE_
BST_/VDD_
BST_/VDD_
L
L
OSC
OSC
OSC
V+
= 5.2V, sourcing 5mA
= 5.2V, sinking 5mA
= V
= 1µF (low ESR), C
= 6.81kΩ, each converter
= 62.5kΩ, with respect to converter
= 62.5kΩ
= 30mA
IN_HIGH
IN_HIGH
= 5V, V+ = 12V (Note 4)
= 3.3V, V+ = 12V (Note 4)
= 100mA, BST2/VDD2 to
= 100mA, BST2/VDD2 to
EN2
OSC
OSC
= 0V
= 5.2V
= 4.5V
L
= 5.2V
= 5.2V
L
= 0V, V
(see the Setting the
)
< 62.5kΩ, 1%
CONDITIONS
< 10kΩ, 1%
= 5.2V, V
= 5.2V, V
SW
= 1.25MHz
DRAIN_
L
L
IN_HIGH
= VDRV =
= VDRV =
= 19V,
= 1µF (ceramic), R
L
, SYNC = GND, I
MIN
1.75
200
400
2.8
1.7
3.6
82
2
IN_HIGH
VL
TYP
3.45
280
300
100
= 0mA, PGND_ = SGND,
2.1
1.9
22
90
40
90
2
1
5
7
= 3.9kΩ, R
MAX
2200
4400
520
4.3
2.6
2.1
0.8
0.6
20
95
2
OSC
D eg r ees
D eg r ees
UNITS
= 10kΩ,
MHz
kHz
kHz
mΩ
µA
µA
ns
%
%
Ω
A
A
A
A
V
V
V
V