MAX15016AATX+ Maxim Integrated Products, MAX15016AATX+ Datasheet - Page 10

• Manufacturer Part Number: MAX15016AATX+
• Description: IC DC/DC CONV 1A 36-TQFN-EP
• Manufacturer: Maxim Integrated Products
• Type: Step-Down (Buck)r

Specifications of MAX15016AATX+

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 1.26 ~ 32 V
• Current - Output: 1A
• Frequency - Switching: 135kHz ~ 500kHz
• Voltage - Input: 4.5 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 36-TQFN Exposed Pad
• Power - Output: 2.1W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1A, 4.5V to 40V Input Buck Converters with
50mA Auxiliary LDO Regulators
(V
1µF, C
10
IN_SW
900
800
700
600
500
400
300
200
100
0
______________________________________________________________________________________
IN_SW
DROPOUT VOLTAGE vs. LOAD CURRENT
0
V
MAX15015A
= V
IN
= 5V, I
T
IN_LDO
A
= 0.1µF, C
10
= -40°C
LOAD
T
LOAD CURRENT (mA)
A
T
0V
= +25°C
0V
0V
0V
= 0 TO 50mA
A
= V
20
= +85°C
T
A
MAX15015B
R
= +135°C
LOAD
DRAIN
IN_LDO
TURN-ON/-OFF WAVEFORM
TURN-ON/-OFF WAVEFORM
30
= 660Ω
=14V, V
TOGGLING EN_SYS
TOGGLING EN_SYS
= 0.1µF, C
40
10ms/div
10ms/div
EN_SYS
50
LDO_OUT
R
= V
LOAD
MAX15014 toc29
MAX15014 toc31
EN_SW
Typical Operating Characteristics (continued)
= 1kΩ
= 10µF, C
-10
-20
-30
-40
-50
-60
-70
-80
10
0
0.1k
V
2V/div
EN_SYS
2V/div
EN_SYS
2V/div
V
1V/div
= 2.4V, V
POWER-SUPPLY REJECTION RATIO
OUT
LDO_OUT
I
DRAIN
LDO_OUT
1k
REG
FREQUENCY (Hz)
= 10mA
= 0.22µF, see Figures 6 and 7, T
10k
I
LDO_OUT
I
LDO_OUT
= V
100k
DVREG
= 1mA
= 50mA
, V
1M
0V
0V
0V
SYNC
0V
10M
I
LOAD
= V
TURN-ON/-OFF WAVEFORM
TURN-ON/-OFF WAVEFORM
= 50mA
SET_LDO
TOGGLING EN_SYS
INCREASING V
0V
0V
A
10ms/div
10ms/div
= +25°C, unless otherwise noted.)
= V
I
LOAD
SGND
= 50mA
TURN-ON/-OFF WAVEFORM
IN
MAX15015B
R
LOAD
TOGGLING EN_SYS
= V
MAX15014 toc30
MAX15014 toc32
= 66Ω
PGND
2ms/div
V
1V/div
EN_SYS
2V/div
V
5V/div
V
2V/div
= 0V, C
LDO_OUT
LDO_OUT
IN
MAX15014 toc28
REG
=
EN_SYS
2V/div
V
2V/div
OUT