参数资料
型号: ADP2107-EVALZ
厂商: Analog Devices Inc
文件页数: 23/36页
文件大小: 0K
描述: BOARD EVALUATION FOR ADP2107
产品培训模块: Powering 90nm/65nm FPGAs and Processors
标准包装: 1
主要目的: DC/DC,步降
输出及类型: 1,非隔离
输出电压: 2.5V
电流 - 输出: 2A
输入电压: 2.7 ~ 5.5 V
稳压器拓扑结构: 降压
频率 - 开关: 1.2MHz
板类型: 完全填充
已供物品:
已用 IC / 零件: ADP2107
相关产品: ADP2107ACPZ-R7DKR-ND - IC REG BUCK SYNC ADJ 2A 16LFCSP
ADP2107ACPZ-3.3-R7DKR-ND - IC REG BUCK SYNC 3.3V 2A 16LFCSP
ADP2107ACPZ-1.8-R7DKR-ND - IC REG BUCK SYNC 1.8V 2A 16LFCSP
ADP2107ACPZ-1.5-R7DKR-ND - IC REG BUCK SYNC 1.5V 2A 16LFCSP
ADP2107ACPZ-1.2-R7DKR-ND - IC REG BUCK SYNC 1.2V 2A 16LFCSP
ADP2107ACPZ-R7CT-ND - IC REG BUCK SYNC ADJ 2A 16LFCSP
ADP2107ACPZ-3.3-R7CT-ND - IC REG BUCK SYNC 3.3V 2A 16LFCSP
ADP2107ACPZ-1.8-R7CT-ND - IC REG BUCK SYNC 1.8V 2A 16LFCSP
ADP2107ACPZ-1.5-R7CT-ND - IC REG BUCK SYNC 1.5V 2A 16LFCSP
ADP2107ACPZ-1.2-R7CT-ND - IC REG BUCK SYNC 1.2V 2A 16LFCSP
更多...
Data Sheet
For example, in an application where the ADP2107(1.8 V) is
used with an input voltage of 3.6 V, a load current of 2 A, and a
maximum ambient temperature of 85°C, at a load current of 2 A,
the most significant contributor of power dissipation in the dc-to-
dc converter package is the conduction loss of the power switches.
Using the graph of switch on resistance vs. temperature (see
Figure 30), as well as the equation of power loss given in the
Power Switch Conduction Losses section, the power dissipation
in the package can be calculated by the following:
P SW ? COND = [ R DS(ON) ? P × D + R DS(ON) ? N × (1 ? D )] × I OUT2 =
ADP2105/ADP2106/ADP2107
The θ JA for the LFCSP_VQ package is 40°C/W, as shown in
Table 3. Therefore, the rise in temperature of the package due to
power dissipation is
T R = θ JA × P D = 40°C/W × 0.40 W = 16°C
The junction temperature of the converter is
T J = T A + T R = 85°C + 16°C = 101°C
Because the junction temperature of the converter is below the
maximum junction temperature of 125°C, this application operates
reliably from a thermal point of view.
[109 mΩ × 0.5 + 90 mΩ × 0.5] × (2 A) 2 ≈ 400 mW
Rev. D | Page 23 of 36
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