參數(shù)資料
型號： LTC1709-9
廠商： Linear Technology Corporation
英文描述： CHOKE COIL 33UH 260MA SMD
中文描述： 2相，5位VID，電流模式，高效率同步降壓型開關(guān)穩(wěn)壓器
文件頁數(shù)： 4/28頁
文件大?。?/td> 319K
代理商： LTC1709-9
4
LTC1709-7
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C. V
IN
= 15V, V
BIAS
= 5V, V
RUN/SS
= 5V unless otherwise noted.
The
G
denotes the specifications which apply over the full operating
Note 5:
Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency. See Applications Information.
Note 6:
Rise and fall times are measured using 10% and 90% levels. Delay
times are measured using 50% levels.
Note 7:
The minimum on-time condition corresponds to the on inductor
peak-to-peak ripple current
≥
40% I
MAX
(see Minimum On-Time
Considerations in the Applications Information section).
Note 8:
Each built-in pull-up resistor attached to the VID inputs also has a
series diode to allow input voltages higher than the VIDV
CC
supply without
damage or clamping (see the Applications Information section).
Note 1:
Absolute Maximum Ratings are those values beyond which the
life of a device may be impaired.
Note 2:
The LTC1709EG-7 is guaranteed to meet performance
specifications from 0
°
C to 70
°
C. Specifications over the –40
°
C to 85
°
C
operating temperature range are assured by design, characterization and
correlation with statistical process controls.
Note 3:
T
J
is calculated from the ambient temperature T
A
and power
dissipation P
D
according to the following formula:
LTC1709EG-7: T
J
= T
A
+ (P
D
85
°
C/W)
Note 4:
The LTC1709-7 is tested in a feedback loop that servos V
ITH
to a
specified voltage and measures the resultant V
EAIN
.
TYPICAL PERFOR U
Efficiency vs Load Current
(3 Operating Modes) (Figure 12)
LOAD CURRENT (A)
0
0.01
E
10
30
40
50
100
70
0.1
1
17097 G01
20
80
90
60
100
10
FORCED
CONTINUOUS
MODE
Burst Mode
OPERATION
V
IN
= 5V
V
= 1.6V
FREQ = 200kHz
CONSTANT
FREQUENCY
(BURST DISABLE)
Efficiency vs Output Current
(Figure 12)
OUTPUT CURRENT (A)
0.1
E
100
80
60
40
20
0
17097 G02
1
10
100
V
OUT
= 2V
V
= 0V
FREQ = 200kHz
V
FCB
= 0V
V
IN
= 5V
V
IN
= 8V
V
IN
= 12V
V
IN
= 20V
INPUT VOLTAGE (V)
5
E
70
80
17097 G03
60
50
10
V
OUT
= 1.6V
15
20
100
90
V
OUT
= 2V
I
OUT
= 20A
Efficiency vs Input Voltage
(Figure 12)
SYMBOL
PGOOD Output
V
PGL
I
PGOOD
V
PG
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
PGOOD Voltage Low
PGOOD Leakage Current
PGOOD Trip Level, Either Controller
I
PGOOD
= 2mA
V
PGOOD
= 5V
V
EAIN
with Respect to Set Output Voltage
V
EAIN
Ramping Negative
V
EAIN
Ramping Positive
0.1
0.3
±
1
V
μ
A
–6
6
–7.5
7.5
–9.5
9.5
%
%
Differential Amplifier/Op Amp Gain Block
A
DA
Gain
CMRR
DA
Common Mode Rejection Ratio
R
IN
Input Resistance
0.995
46
1
1.005
V/V
dB
k
0V < V
CM
< 5V
Measured at V
OS
+ Input
55
80
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC1709EG 功能描述:IC REG CTRLR BUCK PWM CM 36-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX
LTC1709EG#PBF 功能描述:IC REG CTRLR BUCK PWM CM 36-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR)
LTC1709EG#TR 功能描述:IC REG CTRLR BUCK PWM CM 36-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX
LTC1709EG#TRPBF 功能描述:IC REG CTRLR BUCK PWM CM 36-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR)
LTC1709EG7 制造商:Linear Technology 功能描述:
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