ADP1882 Analog Devices, ADP1882 Datasheet - Page 7

• Manufacturer Part Number: ADP1882
• Description: Synchronous Current-Mode Buck Controller with Constant On-time and 0.8 V Reference Voltage
• Manufacturer: Analog Devices

TYPICAL PERFORMANCE CHARACTERISTICS
100
100
100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
95
90
85
80
75
70
65
60
55
50
45
40
35
30
95
90
85
80
75
70
65
60
55
50
45
40
35
30
100
100
100
V
V
V
DD
IN
DD
V
= 13V
V
DD
= 5.5V,
= 5.5V, V
DD
V
DD
= 5.5V, V
Figure 4. Efficiency—300 kHz, V
Figure 5. Efficiency—300 kHz, V
= 5.5V, V
Figure 6. Efficiency—300 kHz, V
= 5.5V, V
IN
V
WURTH INDUCTOR: 7443252100, L = 1.0µH, DCR: 3.3mΩ
INFINEON MOSFETS: BSC042N03MS G (UPPER/LOWER)
R
T
= 16.5V (PSM)
DD
IN
A
ON
IN
= 5.5V
= 3.6V, V
= 25°C
IN
: 5.4mΩ
= 5.5V (PSM)
V
= 13V (PSM)
V
V
DD
WURTH IND: 744355147, L = 0.47 µH, DCR: 0.80MΩ
INFENION FETs: BSC042N03MS G (UPPER/LOWER)
TA = 25°C
V
V
1k
DD
V
1k
DD
1k
LOAD CURRENT (mA)
LOAD CURRENT (mA)
LOAD CURRENT (mA)
DD
DD
V
DD
= 3.6V, V
V
DD
= 3.6V, V
DD
= 5.5V, V
= 5.5V, V
= 3.6V, V
IN
= 3.6V, V
V
V
= 5.5V, V
DD
= 2.7V, V
= 5.5V
DD
V
V
= 5.5V, V
DD
= 5.5V, V
DD
IN
V
V
(PSM)
IN
IN
DD
IN
= 5.5V (PSM)
= 5.5V, V
IN
IN
IN
= 2.7V, V
= 13V
= 13V
IN
V
IN
V
= 16.5V
= 16.5V
= 13V
T
V
F
WURTH INDUCTOR:
744355200, L = 2µH, DCR: 2.5mΩ
INFINEON MOSFETS:
BSC042N03MS G (UPPER/LOWER)
= 16.5V (PSM)
= 5.5V,
DD
DD
A
SW
OUT
= 16.5V (PSM)
= 13V
IN
= 25°C
IN
= 5.5V, V
= 5.5V, V
= 16.5V (PSM)
= 300kHz
= 1.8V
= 5.5V (PSM)
IN
IN
= 13V (PSM)
= 16.5V (PSM)
10k
10k
10k
OUT
OUT
IN
OUT
IN
= 16.5V
= 5.5V
= 0.8 V
= 1.8 V
= 7 V
V
V
(PSM)
DD
IN
= 13V
= 3.6V,
100k
100k
100k
Rev. 0 | Page 7 of 40
100
100
100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
95
90
85
80
75
70
65
60
55
50
100
100
100
V
V
V
DD
IN
V
DD
DD
= 13V (PSM)
= 5.5V,
= 5.5V/V
= 5.5V, V
Figure 7. Efficiency—600 kHz, V
Figure 8. Efficiency—600 kHz, V
V
Figure 9. Efficiency—600 kHz, V
DD
V
V
DD
IN
= 3.6V, V
DD
IN
V
WURTH INDUCTOR: 744355072, L = 0.72µH, DCR: 1.65mΩ
INFINEON FETS: BSC042N03MS G (UPPER/LOWER)
R
T
= 13V (PSM)
= 5.5V, V
WURTH INDUCTOR: 744325072, L = 0.72µH, DCR: 1.65mΩ
INFINEON FETS: BSC042N03MS G (UPPER/LOWER)
R
T
DD
V
= 5.5V/V
A
ON
= 5.5V
A
ON
DD
V
= 25°C
= 25°C
DD
: 5.4mΩ
= 5.5V, V
: 5.4mΩ
= 5.5V, V
IN
= 5.5V, V
1k
1k
V
1k
LOAD CURRENT (mA)
V
LOAD CURRENT (mA)
LOAD CURRENT (mA)
= 5.5V
DD
IN
IN
DD
= 13V
= 13V
= 5.5V/V
= 5.5V, V
V
IN
IN
DD
V
= 16.5V
IN
DD
= 16.5V
= 5.5V, V
= 5.5V (PSM)
= 5.5V, V
IN
T
V
F
WURTH INDUCTOR:
7443552100, L = 1.0µH, DCR: 3.3mΩ
INFINEON MOSFETS:
BSC042N03MS G (UPPER/LOWER)
IN
ADP1882/ADP1883
= 16.5V
A
SW
OUT
= 13V (PSM)
= 25°C
V
= 600kHz
DD
IN
= 5V, V
V
IN
= 16.5V (PSM)
= 5.5V, V
DD
= 13V
10k
10k
10k
V
= 5.5V, V
IN
OUT
DD
OUT
V
OUT
DD
= 13V
= 3.6V, V
IN
V
= 0.8 V
= 1.8 V
= 5.5V, V
DD
= 5 V
= 16.5V (PSM)
IN
= 3.6V/V
= 5.5V (PSM)
IN
IN
= 5.5V
= 5.5V
IN
= 13V
100k
100k
100k