參數(shù)資料
型號(hào)： TC1303B-EF1EMF
廠(chǎng)商： Microchip Technology Inc.
英文描述： 500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output
中文描述： 500毫安同步降壓穩(wěn)壓器，300 mA的LDO具有電源就緒輸出
文件頁(yè)數(shù)： 29/30頁(yè)
文件大?。?/td> 441K
代理商： TC1303B-EF1EMF
TC1303B
DS21949A-page 8
2005 Microchip Technology Inc.
2.0
TYPICAL PERFORMANCE CURVES
Note: Unless otherwise indicated, VIN1 = VIN2 = SHDN1,2 =3.6V, COUT1 =CIN =4.7 F, COUT2 =1 F, L =4.7 H,
VOUT1 (ADJ) = 1.8V, TA = +25°C. Boldface specifications apply over the TA range of -40°C to +85°C. TA = +25°C. Adjustable or fixed
output voltage options can be used to generate the Typical Performance Characteristics.
FIGURE 2-1:
IQ Switcher and LDO
Current vs. Ambient Temperature.
FIGURE 2-2:
IQ Switcher Current vs.
Ambient Temperature.
FIGURE 2-3:
IQ LDO Current vs. Ambient
Temperature.
FIGURE 2-4:
VOUT1 Output Efficiency vs.
Input Voltage (VOUT1 = 1.2V).
FIGURE 2-5:
VOUT1 Output Efficiency vs.
IOUT1 (VOUT1 = 1.2V).
FIGURE 2-6:
VOUT1 Output Efficiency vs.
Input Voltage (VOUT1 = 1.8V).
Note:
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
60
64
68
72
76
80
-40 -25 -10
5
20
35
50
65
80
95 110 125
Ambient Temperature (°C)
I Q
Sw
itc
h
er
and
LD
O
(
A
)
VIN = 3.6V
VIN = 4.2V
VIN = 5.5V
IOUT1 = IOUT2 = 0 mA
SHDN1 = VIN2
SHDN2 = VIN2
30
35
40
45
50
55
-40 -25 -10
5
20
35
50
65
80
95 110 125
Ambient Temperature (°C)
I Q
Sw
itc
h
er
(
A)
VIN = 3.6V
VIN = 4.2V
VIN = 5.5V
IOUT1 = 0 mA
SHDN1 = VIN2
SHDN2 = AGND
30
35
40
45
50
55
-40 -25 -10
5
20
35
50
65
80
95 110 125
Ambient Temperature (°C)
I Q
LD
O
(
A
)
VIN = 3.6V
VIN = 4.2V
VIN = 5.5V
IOUT2 = 0 mA
SHDN1 = AGND
SHDN2 = VIN2
50
55
60
65
70
75
80
85
90
95
100
2.7
3.05
3.4
3.75
4.1
4.45
4.8
5.15
5.5
Input Voltage (V)
V
OU
T
1
E
fficiency
(%)
IOUT1 = 100 mA
IOUT1 = 250 mA
IOUT1 = 500 mA
SHDN1 = VIN2
SHDN2 = AGND
70
75
80
85
90
95
100
0.005
0.104
0.203
0.302
0.401
0.5
I
OUT1 (A)
V
OU
T
1
E
ffici
ency
(%
)
VIN1 = 3.0V
VIN1 = 4.2V
VIN1 = 3.6V
SHDN1 = VIN2
SHDN2 = AGND
60
65
70
75
80
85
90
95
100
2.7
3.05
3.4
3.75
4.1
4.45
4.8
5.15
5.5
Input Voltage (V)
V
OUT
1
E
ff
icie
n
cy(
%
)
IOUT1 = 100 mA
IOUT1 = 250 mA
IOUT1 = 500 mA
SHDN1 = VIN2
SHDN2 = AGND
相關(guān)PDF資料
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TC1303B-EF1EUNTR 500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TC1303B-IA0EMF 功能描述:低壓差穩(wěn)壓器 - LDO PWM/LDO combo w/PG RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
TC1303B-IA0EMFTR 功能描述:低壓差穩(wěn)壓器 - LDO PWM/LDO combo w/PG RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
TC1303B-IA0EUN 功能描述:低壓差穩(wěn)壓器 - LDO PWM/LDO combo w/PG RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
TC1303B-IA0EUNTR 功能描述:低壓差穩(wěn)壓器 - LDO PWM/LDO combo w/PG RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
TC1303B-PA0EMF 功能描述:低壓差穩(wěn)壓器 - LDO PWM/LDO combo w/PG RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
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