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参数资料
| 型号： | MAX8952EWE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 29/31页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 2.5A 16WLP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.77 V ~ 1.4 V |
| 输入电压： | 2.5 V ~ 5.5 V |
| 频率 - 开关： | 3.25MHz |
| 电流 - 输出： | 2.5A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-UFBGA，WLCSP |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 16-WLP（2x2） |
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MAX8952
2.5A Step-Down Regulator
with Remote Sense in 2mm x 2mm WLP
4 × V IN × D × ( 1- D )
I OUT ( MAX ) × f OSC
D = OUT
Applications Information
Inductor Selection
Calculate the inductor value (L IDEAL ) using the follow-
ing formula:
L IDEAL =
This sets the peak-to-peak inductor current ripple to 1/4
the maximum output current. The oscillator frequency,
f OSC , is 3.25MHz, and the duty cycle, D, is:
V
V IN
Table 12. Recommended Inductors
Given L IDEAL , the peak-to-peak inductor ripple current
is 0.25 x I OUT(MAX) . The peak inductor current is 1.125
x I OUT(MAX) . Make sure that the saturation current of
the inductor exceeds the peak inductor current, and
the rated maximum DC inductor current exceeds the
maximum output current (I OUT(MAX) ). Inductance val-
ues smaller than L IDEAL can be used to reduce induc-
tor size; however, if much smaller values are used,
peak inductor current rises and a larger output capaci-
tance may be required to suppress output ripple.
Larger inductance values than L IDEAL can be used to
obtain higher output current, but typically require a
physically larger inductor size. See Table 12 for rec-
ommended inductors.
MANUFACTURER
Toko
TDK
Coilcraft
Wurth
SERIES
DE2815C
DB3015C
VLS252010ET
VLS4012ET
LPS5015
LPS5010
LPS4414
744042001
INDUCTANCE
(μH)
0.47
1.0
1.0
0.47
1.0
1.0
0.47
0.7
1.0
DC RESISTANCE
( ? typ)
0.025
0.033
0.036
0.038
0.050
0.050
0.038
0.055
0.030
CURRENT RATING
(mA)
3800
2700
2700
2800
2800
3900
3400
3800
2600
DIMENSIONS
L x W x H (mm)
3.2 x 3.0 x 1.5
3.2 x 3.2 x 1.5
2.5 x 2.0 x 1.0
4.0 x 4.0 x 1.2
5.0 x 5.0 x 1.5
5.0 x 5.0 x 1.0
4.4 x 4.4 x 1.4
4.8 x 4.8 x 1.8
Maxim Integrated
29
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