MAX17085BETL+T Maxim Integrated Products, MAX17085BETL+T Datasheet - Page 14

• Manufacturer Part Number: MAX17085BETL+T
• Description: Battery Management Dual Main Step-Down Controller
• Manufacturer: Maxim Integrated Products

Specifications of MAX17085BETL+T

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Integrated Charger, Dual Main Step-Down
Controllers, and Dual LDO Regulators
(Circuit of Figure 1, V
14
3.40
3.35
3.30
3.25
3.20
3.15
3.10
0V
0A
0V
0V
0V
0V
_____________________________________________________________________________________
0
ON3 = ON5 = GND
V
CHARGER OFF
SMPS5 AND SMPS3 OFF
ADAPTER
10
LDO3 LOAD REGULATION
LDO AND REF POWER-UP
LDO3 LOAD TRANSIENT
(0mA
= 19V
LOAD CURRENT (mA)
20
2ms/div
50mA
4µs/div
ADP
30
= V
40
0mA)
SYS
MAX17085B toc25
MAX17085B toc22
50
= 20V, V
60
LDO3 (AC)
100mV/div
I
50mA/div
DCIN
10V/div
LDO3
2V/div
LDO5
2V/div
REF
1V/div
LDO3
BATT
= 16.8V, LDO5 = V
4.989
4.988
4.987
4.986
4.985
4.984
4.983
4.982
4.981
4.980
4.979
3.3V
2.1V
19V
Typical Operating Characteristics (continued)
100
5V
95
90
85
80
75
70
65
60
55
50
0.01
0
SMPS5 EFFICIENCY vs. LOAD CURRENT
DCIN, LDO AND REF POWER REMOVAL
LDO5 vs. AMBIENT TEMPERATURE
(CHARGER AND SMPS3 ARE OFF)
7V
10
AMBIENT TEMPERATURE (°C)
20
LOAD CURRENT (A)
0.1
30
CC
2ms/div
40
= 5V, LDO3 = 3.3V, T
12V
50
1
60
PWM MODE
SKIP MODE
MAX17085B toc23
20V
70
80
10
DCIN
10V/div
LDO3
2V/div
LDO5
2V/div
REF
1V/div
3.301
3.300
3.299
3.298
3.297
3.296
3.295
3.294
3.293
3.292
A
100
0V
0A
95
90
85
80
75
70
65
60
55
50
= +25°C, unless otherwise noted.)
0.01
0
SMPS5 EFFICIENCY vs. LOAD CURRENT
ON3 = ON5 = GND
SKIP MODE
LDO3 vs. AMBIENT TEMPERATURE
(CHARGER AND SMPS3 ARE OFF)
10
(0mA
AMBIENT TEMPERATURE (°C)
LDO5 LOAD TRANSIENT
20
LOAD CURRENT (A)
0.1
30
100mA
4µs/div
40
ULTRASONIC MODE
50
1
0mA)
PWM MODE
60
MAX17085B toc24
12V INPUT
70
80
10
LDO5 (AC)
100mV/div
I
100mA/div
LDO5