参数资料
型号: TPS65020RHAR
厂商: TEXAS INSTRUMENTS INC
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQCC40
封装: GREEN, PLASTIC, QFN-40
文件页数: 5/48页
文件大小: 1182K
代理商: TPS65020RHAR
www.ti.com
TYPICAL CHARACTERISTICS
I
-OutputCurrent-mA
O
Efficiency-%
T =25 C
V
=3.3V
A
O
o
PFM/PWMMode
V =3.8V
I
V =4.2V
I
V =5V
I
0.01
0.1
1
10
100
1k
10k
I
-OutputCurrent-mA
O
Efficiency-%
T =25 C
V
=3.3V
A
O
o
PWMMode
V =3.8V
I
V =4.2V
I
V =5V
I
0.01
0.1
1
10
100
1k
10k
SLVS607B – SEPTEMBER 2005 – REVISED JULY 2007
Graphs were taken using the EVM with the following inductor/output capacitor combinations:
CONVERTER
INDUCTOR
OUTPUT CAPACITOR
OUTPUT CAPACITOR VALUE
VDCDC1
VLCF4020-2R2
C2012X5R0J106M
2
10
μF
VDCDC2
VLCF4020-2R2
C2012X5R0J106M
2
10
μF
VDCDC3
VLF4012AT-2R2M1R5
C2012X5R0J106M
2
10
μF
Table 1. Table of Graphs
FIGURE
η
Efficiency
vs Output current
1, 2, 3, 4, 5, 6, 7
Line transient response
8, 9, 10
Load transient response
11, 12, 13
VDCDC2 PFM operation
14
VDCDC2 low ripple PFM operation
15
VDCDC2 PWM operation
16
Startup VDCDC1, VDCDC2 and VDCDC3
17
Startup LDO1 and LDO2
18
Line transient response
19, 20, 21
Load transient response
22, 23, 24
DCDC1: EFFICIENCY
vs
OUTPUT CURRENT
Figure 1.
Figure 2.
13
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