MAX1706EEE-T Maxim Integrated Products, MAX1706EEE-T Datasheet - Page 8

• Manufacturer Part Number: MAX1706EEE-T
• Description: DC/DC Switching Controllers 1-3 Cell Step-Up w/Linear Regulator
• Manufacturer: Maxim Integrated Products

1- to 3-Cell, High-Current, Low-Noise,
Step-Up DC-DC Converters with Linear Regulator
C
D
8
A
B
A
B
____________________________Typical Operating Characteristics (continued)
(Circuit of Figure 2, T
I
A = V
B = V
V
A = INDUCTOR CURRENT, 500mA/div
B = LX VOLTAGE, 5V/div
C = V
D = V
C5 = 0.33µF
OUT
_______________________________________________________________________________________
IN
= 1.2V, V
= 0mA, V
IN
OUT,
PWM SWITCHING WAVEFORMS
OUT
LDO
, 1.5V TO 2.0V, 200mV/div
LINE-TRANSIENT RESPONSE
RIPPLE, 50m/div AC-COUPLED
RIPPLE, 5m/div AC-COUPLED
10mV/div, 3.3V DC OFFSET
OUT
OUT
= 4.5V, V
= 3.3V
MAX1705
MAX1705
200µs/div
1µs/div
LDO
A
= 3.3V, I
= +25°C, unless otherwise noted.)
LDO
= 200mA
1A
0V
V
V
OUT
LDO
C
D
A
B
A
B
V
A = INDUCTOR CURRENT, 500mA/div
B = LX VOLTAGE, 5V/div
C = V
D = V
C5 = 0.33µF
V
A = V
B = I
IN
IN
= 1.2V, V
= 1.2V, V
OUT
OUT
OUT
LDO
PFM SWITCHING WAVEFORMS
LOAD-TRANSIENT RESPONSE
, 0mA TO 200mA, 200mA/div
, 50mV/div, 3.3V DC OFFSET
RIPPLE, 50mV/div AC-COUPLED
RIPPLE, 5mV/div AC-COUPLED
OUT
OUT
= 3.3V
= 4.5V, V
MAX1705
MAX1705
200µs/div
2µs/div
LDO
= 3.3V, I
LDO
= 40mA
0mA
0V
V
V
OUT
LDO
V
C
D
A
B
LDO
V
A = ONA, 2V/div
B = V
C = V
D = INDUCTOR CURRENT, 500mA/div
V
I
C5 = 0.33µF
IN
LDO
LDO
= 1.2V, LOAD = 1kΩ, ONB TIED TO OUT
DC TO 500kHz
LDO
OUT
= 200mA
IS AC-COUPLED, 1mv/div
, 2V/div
, 2V/div
LINEAR-REGULATOR
POWER-ON DELAY
(PWM MODE)
OUTPUT NOISE
MAX1705
MAX1705
1ms/div
2ms
3V
2.5V
3.3V
0mA