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| 型号： | MAX8805WEWEAA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 16/24页 |
| 文件大小： | 0K |
| 描述： | IC PWM STEP-DN CONV 650MA 16-WLP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 转换器，WCDMA PA 电源 |
| 输入电压： | 2.7 V ~ 5.5 V |
| 输出数： | 1 |
| 输出电压： | 0.4 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-UFBGA，WLCSP |
| 供应商设备封装： | 16-WLP（2x2） |
| 包装： | 带卷 (TR) |
600mA/650mA PWM Step-Down Converters in
2mm x 2mm WLP for WCDMA PA Power
Table 2. Suggested Inductors
MANUFACTURER
SERIES
INDUCTANCE
(μH)
ESR
( ? )
CURRENT RATING
(mA)
DIMENSIONS
(mm)
1.0
0.07
1600
Coilcraft
LPO3310
1.5
0.10
1400
3.3 x 3.3 x 1.0 = 11mm 3
2.2
1.0
0.13
0.05
1100
1500
MIPF2520
1.5
2.2
0.07
0.08
1500
1300
2.5 x 2.0 x 1.0 = 5mm 3
FDK
Hitachi
Murata
MIPS2520
MIPF2016
KSLI-252010
LQH32C_53
1.3
2.0
1.0
2.2
1.5
2.2
1.0
2.2
0.09
0.11
0.11
0.115
0.080
0.06
0.10
1500
1200
1100
—
1000
790
2.5 x 2.0 x 1.0 = 5mm 3
2.0 x 1.6 x 1.0 = 3.2mm 3
2.5 x 2.0 x 1.0 = 5mm 3
3.2 x 2.5 x 1.7 = 14mm 3
1.2
0.08
590
Sumida
CDRH2D09
1.5
0.09
520
3.0 x 3.0 x 1.0 = 9mm 3
2.2
1.5
0.12
0.05
440
680
Taiyo Yuden
CDRH2D11
CB2518T
D3010FB
D2812C
2.2
3.3
2.2
4.7
1.0
1.2
2.2
0.08
0.10
0.09
0.13
0.20
0.09
0.15
580
450
510
340
1170
860
640
3.2 x 3.2 x 1.2 = 12mm 3
2.5 x 1.8 x 2.0 = 9mm 3
3.0 x 3.0 x 1.0 = 9mm 3
3.0 x 3.0 x 1.2 = 11mm 3
TOKO
D310F
D312C
1.5
2.2
1.5
2.2
0.13
0.17
0.10
0.12
1230
1080
1290
1140
3.6 x 3.6 x 1.0 = 13mm 3
3.6 x 3.6 x 1.2 = 16mm 3
due to their small size, low ESR, and small temperature
coefficients. Due to the unique feedback network, the
output capacitance can be very low. A 2.2μF capacitor
is recommended for most applications. For optimum
load-transient performance and very low output ripple,
the output capacitor value can be increased.
For LDO1 and LDO2, the minimum output capacitance
required is dependent on the load currents. For loads
less than 10mA, it is sufficient to use a 0.1μF capacitor
for stable operation over the full temperature range.
With rated maximum load currents, a minimum of 1μF is
recommended. Reduce output noise and improve load-
transient response, stability, and power-supply rejec-
tion by using larger output capacitors.
Note that some ceramic dielectrics exhibit large capaci-
tance and ESR variation with temperature. With dielectrics
such as Z5U and Y5V, it is necessary to use 2.2μF or larg-
er to ensure stability at temperatures below -10°C. With
X7R or X5R dielectrics, 1μF is sufficient at all operating
temperatures. These regulators are optimized for ceramic
capacitors. Tantalum capacitors are not recommended.
Input Capacitor Selection
The input capacitor (C IN1 ) of the PA converter reduces
the current peaks drawn from the battery or input
power source and reduces switching noise in the
16
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