參數(shù)資料
型號: TPS65021RHARG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 3-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC40
封裝: 6 X 6 MM, GREEN, PLASTIC, MO-220/VJJD-2, QFN-40
文件頁數(shù): 5/47頁
文件大?。?/td> 1180K
代理商: TPS65021RHARG4
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
SLVS613B – OCTOBER 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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