ADP1607-001-EVALZ Analog Devices, ADP1607-001-EVALZ Datasheet - Page 12

• Manufacturer Part Number: ADP1607-001-EVALZ
• Description: Power Management IC Development Tools Eval Board PWM Mode Only
• Manufacturer: Analog Devices
• Type: DC/DC Converters, Regulators & Controllersr
• Series: ADP1607r

Specifications of ADP1607-001-EVALZ

• Rohs: yes
• Tool Is For Evaluation Of: ADP1607
• Input Voltage: 0.8 V to 3.3 V
• Factory Pack Quantity: 1

ADP1607
APPLICATIONS INFORMATION
SETTING THE OUTPUT VOLTAGE
The
1.8 V and 3.3 V. The output voltage is set by a resistor voltage
divider, R1, from the output voltage (V
feedback input at FB and R2 from FB to GND (see Figure 24).
Resistances between 100 kΩ and 1 MΩ are recommended.
For larger R1 and R2 values, the voltage drop due to the FB pin
current (I
needs to be factored in.
To account for the effect of I
use the following equation to determine R1 and R2 for the
desired V
where:
V
I
INDUCTOR SELECTION
The
enabling the use of small chip inductors ideal for use in
applications with limited solution size constraints. The
ADP1607
inductors, which have favorable saturation currents and lower
series resistances for their given physical size.
Table 5. Suggested Inductors
Manufacturer
TDK
Murata
Wurth
Taiyo Yuden
Toko
Coilcraft
FB
FB
= 0.1 µA, typical
= 1.259 V, typical
ADP1607
ADP1607
V
OUT
FB
OUT
is designed for optimal performance with 2.2 µH
=
) on R1 becomes proportionally significant and
:



1
can be configured for output voltages between
is designed with a 2 MHz operating frequency
+
Part Number
MLP2016S2R2M
MLP2520S2R2S
VLF252012MT-2R2M
VLF302510MT-2R2M
VLF302515MT-2R2M
LQM2HPN2R2MG0
LQH32PN2R2NNC
74479787222
7440430022
BRC2012T2R2MD
MDT2520-CR2R2M
DEM2810C (1224AS-H-2R2M)
DEM2815C (1226AS-H-2R2M)
XFL3012-222
XFL4020-222
R1
R2



V
FB
+
FB
I
FB
for all values of R1 and R2,
(
R1
)
OUT
) to the 1.259 V
Inductance
(µH)
2.2 ± 20%
2.2 ± 20%
2.2 ± 20%
2.2 ± 20%
2.2 ± 20%
2.2 ± 20%
2.2 ± 30%
2.2 ± 20%
2.2 ± 30%
2.2 ± 20%
2.2 ± 20%
2.2 ± 20%
2.2 ± 20%
2.2 ± 20%
2.2 ± 10%
110
57
70
42
80
80
23
110
85
43
81
21
DCR (mΩ)
Typ
110
64
90
Rev. A | Page 12 of 16
(1)
To ensure stable and efficient performance with the ADP1607,
care should be taken to select a compatible inductor with a
sufficient current rating, saturation current, and low dc
resistance (DCR.)
The maximum rated rms current of the inductor must be
greater than the maximum input current to the regulator.
Likewise, the saturation current of the chosen inductor must be
able to support the peak inductor current (the maximum input
current plus half the inductor ripple current) of the application.
The inductor ripple current (∆I
mode can be calculated as
where:
D is the duty cycle of the application.
L is the inductor value.
f
The switch duty cycle (D) is determined by the input (V
output (V
Inductors with a low DCR minimize power loss and improve
efficiency. DCR values below 100 mΩ are recommended.
Current
Rating (A)
1.20
1.20
1.67
1.23
2.71
1.30
1.85
1.50
2.50
1.00
1.35
1.10
1.40
1.9
8.0
SW
is the switching frequency of the ADP1607.
∆
D
I
=
L
=
V
OUT
OUT
V
L
) voltages with the following equation:
V
IN
×
OUT
−
×
f
SW
Saturation
Current (A)
1.20
1.04
1.37
1.57
0.70
2.35
1.10
1.40
2.20
1.6
3.1
V
D
IN
L
) in steady state continuous
Size (L × W × H) (mm)
2.00 × 1.60 × 1.00
2.50 × 2.00 × 1.00
2.50 × 2.00 × 1.00
3.00 × 2.50 × 1.00
3.00 × 2.50 × 1.40
2.50 × 2.00 × 0.90
3.20 × 2.50 × 1.55
2.50 × 2.00 × 1.00
4.80 × 48.0 × 2.80
2.00 × 1.25 × 1.40
2.50 × 2.00 × 1.00
3.20 × 3.00 × 1.00
3.20 × 3.00 × 1.50
3.00 × 3.00 × 1.20
4.00 × 4.00 × 2.10
Data Sheet
IN
Package
0806
1008
1008
1008
1210
1008
0805
1008
1212
1515
) and
(2)
(3)