ADP2119-EVALZ Analog Devices Inc, ADP2119-EVALZ Datasheet - Page 12

• Manufacturer Part Number: ADP2119-EVALZ
• Description: Step-Down Regulator Eval. Board
• Manufacturer: Analog Devices Inc

Specifications of ADP2119-EVALZ

• Silicon Manufacturer: Analog Devices
• Application Sub Type: Step Down DC/DC Converter
• Kit Application Type: Power Management - Voltage Regulator
• Silicon Core Number: ADP2119
• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 0.6V ~ Vin
• Current - Output: 2A
• Voltage - Input: 2.3 ~ 5.5 V
• Regulator Topology: Buck
• Frequency - Switching: 1.2MHz
• Board Type: Fully Populated
• Utilized Ic / Part: ADP2119
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADP2119/ADP2120
1
2
4
1
2
4
1
2
4
CH1 20.0mV CH2 5.00V
CH1 5.0mV CH2 5.00V
CH1 5.0mV CH2 5.00V
Figure 35. Discontinuous Conduction Mode (DCM)
Figure 36. Continuous Conduction Mode (CCM)
V
V
V
OUT
OUT
OUT
SW
SW
SW
I
I
I
L
L
L
CH4 500mA Ω
CH4 500mA Ω
CH4 1.0A Ω
(AC)
(AC)
(AC)
Figure 34. PFM Mode
T
M4.0µs
T
M1.0µs
T
M1.0µs
T
T
T
–40.0ns
–40.0ns
–40.0ns
A CH4
A CH2
A CH2
820mA
4.3V
4.3V
Rev. 0 | Page 12 of 24
–16
–32
–48
–64
–80
–16
–32
–48
–64
–80
–16
–32
–48
–64
–80
80
64
48
32
16
80
64
48
32
16
80
64
48
32
16
0
0
0
1k
Figure 37. ADP2119 Bode Plot at V
1k
Figure 38. ADP2119 Bode Plot at V
1k
Figure 39. ADP2119 Bode Plot at V
CROSS FREQUENCY: 124kHz
PHASE MARGIN: 46°
CROSS FREQUENCY: 105kHz
PHASE MARGIN: 47°
CROSS FREQUENCY: 112kHz
PHASE MARGIN: 48°
10k
10k
10k
L = 1.5 μH, C
L = 1.5 μH, C
L = 1 μH, C
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
OUT
OUT
OUT
100k
100k
100k
= 22 μF +10 μF
= 2 × 22 μF
= 2 × 22 μF
IN
IN
IN
= 5 V, V
= 5 V, V
= 5 V, V
OUT
OUT
OUT
= 1.0 V, I
= 1.2 V, I
= 1.5 V, I
1M
1M
1M
O
O
O
= 2 A,
= 2 A,
= 2 A,
200
160
120
80
40
0
–40
–80
–120
–160
–200
200
160
120
80
40
0
–40
–80
–120
–160
–200
200
160
120
80
40
0
–40
–80
–120
–160
–200