MAX8649 Maxim Integrated Products, MAX8649 Datasheet - Page 8

• Manufacturer Part Number: MAX8649
• Description: 1.8A Step-Down Regulator
• Manufacturer: Maxim Integrated Products

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1.8A Step-Down Regulator with Differential
Remote Sense in 2mm x 2mm WLP
( Typical Operating Circuit , V
8
_______________________________________________________________________________________
V
V
V
OUT
V
OUT
V
OUT
V
I
EN
EN
IN
I
I
IN
I
L
L
L
LINE TRANSIENT RESPONSE (4.2V TO
10I LOAD
300mA LOAD
LIGHT LOAD STARTUP WAVEFORMS
PREBIAS STARTUP WAVEFORMS
3.2V TO 4.2V) 26MHz SYNC
IN1
(FORCED PWM)
= V
OUTPUT PREBIASED TO 1.3V
STARTUP TO 1.1V
200μs/div
200μs/div
20μs/div
IN2
= 3.6V, V
MAX8649 toc17
MAX8649 toc19
MAX8649 toc21
AGND
Typical Operating Characteristics (continued)
= V
1V/div
100mA/div
500mA/div
5V/div
500mV/div
1A/div
5V/div
1V/div
20mV/div
200mA/div
PGND
= 0V, V
OUT
V
V
V
I
OUT
V
OUT
OUT
OUT
V
I
EN
= 1.1V, V
IN
I
IN
I
I
L
L
L
LINE TRANSIENT RESPONSE (4.2V TO
HEAVY LOAD STARTUP WAVEFORMS
300mA LOAD
1I LOAD
LOAD TRANSIENT RESPONSE
3.2V TO 4.2V) SYNC OFF
DD
= 1.8V, T
(1mA TO 1A)
200μs/div
20μs/div
40μs/div
A
= +25°C, unless otherwise noted.)
MAX8649 toc18
MAX8649 toc20
MAX8649 toc22
1V/div
200mA/div
500mA/div
5V/div
1V/div
20mV/div
200mA/div
50mV/div
500mA/div
1A/div