参数资料
型号: LTC3736EUF-1
厂商: Linear Technology
文件页数: 3/28页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 24-QFN
标准包装: 91
系列: PolyPhase®
PWM 型: 电流模式
输出数: 2
频率 - 最大: 825kHz
占空比: 100%
电源电压: 2.75 V ~ 9.8 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 24-WFQFN 裸露焊盘
包装: 管件
LTC3736-1
ELECTRICAL CHARACTERISTICS
The ● denotes specifications that apply over the full operating temperature
range, otherwise specifications are at T A = 25 ° C. V IN = 4.2V unless otherwise specified.
PARAMETER
Output Voltage Load Regulation
V FB1,2 Input Current
TRACK Input Current
Overvoltage Protect Threshold
CONDITIONS
I TH = 0.9V (Note 5)
I TH = 1.7V
(Note 5)
TRACK = 0.6V
Measured at V FB
MIN
0.66
TYP
0.12
–0.12
10
10
0.68
MAX
0.5
–0.5
50
50
0.7
UNITS
%
%
nA
nA
V
Overvoltage Protect Hysteresis
20
mV
Top Gate (TG) Drive 1, 2 Rise Time
Top Gate (TG) Drive 1, 2 Fall Time
Bottom Gate (BG) Drive 1, 2 Rise Time
Bottom Gate (BG) Drive 1, 2 Fall Time
C L = 3000pF
C L = 3000pF
C L = 3000pF
C L = 3000pF
40
40
50
40
ns
ns
ns
ns
Maximum Current Sense Voltage
(SENSE + – SW)( ? V SENSE(MAX) )
Soft-Start Time
IPRG = Floating (Note 6)
IPRG = 0V
IPRG = V IN
Time for V FB1 to Ramp from 0.05V to 0.55V
110
70
185
0.667
125
85
204
0.833
140
100
223
1
mV
mV
mV
ms
Spread Spectrum Oscillator
Oscillator Frequency
Spread Spectrum Disabled (SSDIS = V IN )
V FREQ = Floating
V FREQ = 0V
V FREQ = V IN
480
260
650
550
300
750
600
340
825
kHz
kHz
kHz
Spread Spectrum Frequency Range
SSDIS = GND
PGOOD Output
Minimum Switching Frequency
Maximum Switching Frequency
450
580
kHz
kHz
PGOOD Voltage Low
PGOOD Trip Level
I PGOOD Sinking 1mA
V FB with Respect to Set Output Voltage
125
mV
V FB < 0.6V, Ramping Positive
V FB < 0.6V, Ramping Negative
V FB > 0.6V, Ramping Negative
V FB > 0.6V, Ramping Positive
–13
–16
7
10
–10.0
–13.3
10.0
13.3
–7
–10
13
16
%
%
%
%
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC3736E-1 is guaranteed to meet specified performance
from 0 ° C to 70 ° C. Specifications over the –40 ° C to 85 ° C operating range
are assured by design, characterization and correlation with statistical
process controls.
Note 4: Dynamic supply current is higher due to gate charge being
delivered at the switching frequency.
Note 5: The LTC3736-1 is tested in a feedback loop that servos I TH to a
specified voltage and measures the resultant V FB voltage.
Note 6: Peak current sense voltage is reduced dependent on duty cycle to
a percentage of value as shown in Figure 2.
Note 3: T J is calculated from the ambient temperature T A and power
dissipation P D according to the following formula:
T J = T A + (P D ? θ JA ° C/W)
37361f
3
相关PDF资料
PDF描述
LTC3728EG#TR IC REG CTRLR BUCK PWM CM 28-SSOP
LTC3835IUFD#TRPBF IC REG CTRLR BUCK PWM CM 20-QFN
LTC3835IFE#TRPBF IC REG CTRLR BUCK PWM CM 20TSSOP
CAT810TSDI-T3 IC SUPERVISOR MPU PP 3.08V SC70-
LTC3731IUH#PBF IC REG CTRLR BUCK PWM CM 32-QFN
相关代理商/技术参数
参数描述
MC10EL05DTR2G 功能描述:逻辑门 5V ECL 2-Input Diff AND/NAND RoHS:否 制造商:Texas Instruments 产品:OR 逻辑系列:LVC 栅极数量:2 线路数量(输入/输出):2 / 1 高电平输出电流:- 16 mA 低电平输出电流:16 mA 传播延迟时间:3.8 ns 电源电压-最大:5.5 V 电源电压-最小:1.65 V 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:DCU-8 封装:Reel
MC10EL07D 功能描述:逻辑门 5V ECL 2-Input RoHS:否 制造商:Texas Instruments 产品:OR 逻辑系列:LVC 栅极数量:2 线路数量(输入/输出):2 / 1 高电平输出电流:- 16 mA 低电平输出电流:16 mA 传播延迟时间:3.8 ns 电源电压-最大:5.5 V 电源电压-最小:1.65 V 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:DCU-8 封装:Reel
MC10EL07DG 功能描述:逻辑门 5V ECL 2-Input XOR/XNOR RoHS:否 制造商:Texas Instruments 产品:OR 逻辑系列:LVC 栅极数量:2 线路数量(输入/输出):2 / 1 高电平输出电流:- 16 mA 低电平输出电流:16 mA 传播延迟时间:3.8 ns 电源电压-最大:5.5 V 电源电压-最小:1.65 V 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:DCU-8 封装:Reel
MC10EL07DR2 功能描述:逻辑门 5V ECL 2-Input RoHS:否 制造商:Texas Instruments 产品:OR 逻辑系列:LVC 栅极数量:2 线路数量(输入/输出):2 / 1 高电平输出电流:- 16 mA 低电平输出电流:16 mA 传播延迟时间:3.8 ns 电源电压-最大:5.5 V 电源电压-最小:1.65 V 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:DCU-8 封装:Reel
MC10EL07DR2G 功能描述:逻辑门 5V ECL 2-Input XOR/XNOR RoHS:否 制造商:Texas Instruments 产品:OR 逻辑系列:LVC 栅极数量:2 线路数量(输入/输出):2 / 1 高电平输出电流:- 16 mA 低电平输出电流:16 mA 传播延迟时间:3.8 ns 电源电压-最大:5.5 V 电源电压-最小:1.65 V 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:DCU-8 封装:Reel