MAX5099ATJ+ Maxim Integrated Products, MAX5099ATJ+ Datasheet - Page 3

• Manufacturer Part Number: MAX5099ATJ+
• Description: IC CONV BUCK SYNC DL 32TQFN-EP
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX5099ATJ+

• Internal Switch(s): Both
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.8 ~ 17.1 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
• Output Voltage: 5.2 V
• Output Current: 2 A
• Input Voltage: 5.2 V to 19 V
• Supply Current: 4.2 mA
• Switching Frequency: 1.9 MHz
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(VDRV = V
C
T
J
IN_HIGH Startup Voltage
GATE Charge Current
GATE Output Voltage
GATE Turn-Off Pulldown
Current
STARTUP/V
V
Level
V
Hysteresis
V
V
V
BYPASS OUTPUT
BYPASS Voltage
BYPASS Load Regulation
SOFT-START/SOFT-STOP
Digital Ramp Period Soft-
Start/Soft-Stop
Soft-Start/Soft-Stop Steps
VOLTAGE-ERROR AMPLIFIER
FB_ Input Bias Current
FB_ Input-Voltage Set Point
FB_ to COMP_
Transconductance
INTERNAL MOSFETS
On-Resistance High-Side
MOSFET Converter 1
BYPASS
L
L
L
L
L
= -40°C to +125°C, unless otherwise noted.) (Note 2)
Undervoltage-Lockout Trip
Undervoltage-Lockout
Output Voltage
LDO Short-Circuit Current
LDO Dropout Voltage
Dual, 2.2MHz, Automotive Synchronous Buck
= 0.22μF (low ESR), C
PARAMETER
L
, V+ = V
L
Converter with 80V Load-Dump Protection
REGULATOR
L
_______________________________________________________________________________________
= IN_HIGH = 5.2V or V+ = IN_HIGH = 5.2V to 19V, EN_ = V
VL
= 4.7μF (ceramic), C
I
ΔV
SYMBOL
I
V
I
VL_SHORT
IN_HIGH
V
GATE_CH
V
GATE_PD
IN_HIGH
UVLO
UVLO
BYPASS
V
R
GATE
V
BYPASS
I
g
FB_
V
LDO
ON1
FB_
M
L
-
Rising, ON/OFF = IN_HIGH, GATE rising
Falling, ON/OFF = IN_HIGH, GATE falling
V
V
V+ = V
I
V+ = V
I
V
V
V
I
V+ = V
I
I
0 < I
Internal 6-bit DAC
-40°C ≤ T
-40°C ≤ T
I
V
I
V
GATE
GATE
SOURCE_
SOURCE_
BYPASS
SWITCH
SWITCH
IN_HIGH
GATE
IN_HIGH
GATE
L
SOURCE1
SOURCE1
V+
falling
BYPASS
= 1μF (low ESR), C
= 1μA
= 1μA
= V+ = 0V
IN_HIGH
IN_HIGH
= 5V
IN_HIGH
= 0μA
= 100mA, BST1/VDD1 to
= 100mA, BST1/VDD1 to
A
A
= V
= 14V, V
= 0 to 40mA, 5.5V ≤ V+ ≤ 19V
= 40mA, V+ = V
= 5.2V
= 4.5V
≤ +85°C
≤ +125°C
< 100μA (sourcing)
ON/OFF
CONDITIONS
= V
= V
= 5.2V
ON/OFF
ON/OFF
ON/OFF
= 14V,
IN_HIGH
= 0V, V+ = 0V,
IN_HIGH
= 4.5V,
= 14V,
= 1μF (ceramic), R
= 4.5V
L
, SYNC = GND, I
0.783
0.785
MIN
1.98
4.0
3.9
5.0
1.4
20
IN_HIGH
VL
2048
TYP
3.45
2.00
180
130
300
195
208
3.6
5.3
3.6
4.1
5.2
0.8
2.4
45
64
= 0mA, PGND = SGND,
9
2
= 3.9kΩ, R
0.809
0.814
MAX
2.02
550
250
355
4.1
7.5
4.3
5.5
3.4
80
5
OSC
UNITS
Cycles
= 10kΩ,
Clock
Steps
f
mΩ
mA
mV
mA
mV
mV
mS
μA
nA
SW
V
V
V
V
V
V
3