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| 型号： | TPS622312EVM-574 |
| 厂商： | Texas Instruments |
| 文件页数： | 4/35页 |
| 文件大小： | 0K |
| 描述： | EVAL MODULE FOR TPS622312-574 |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 3，非绝缘，（3电路） |
| 输出电压： | 1.3V，1.5V，2V |
| 电流 - 输出： | 500mA |
| 输入电压： | 2.05 V ~ 6 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 3MHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | TPS622312，TPS622313，TPS622314 |
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TPS62230, TPS62231, TPS62232, TPS62233, TPS62234, TPS62235, TPS62236
TPS62237, TPS62238, TPS62239, TPS622310, TPS622311, TPS622312
TPS622313, TPS622314, TPS622315, TPS622316, TPS622317, TPS622318
SLVS941E – APRIL 2009 – REVISED DECEMBER 2010
ELECTRICAL CHARACTERISTICS
V IN = 3.6V, V OUT = 1.8V, EN = V IN , MODE = GND, T A = –40°C to 85°C (1) typical values are at T A = 25°C (unless otherwise
noted), C IN = 2.2 μ F, L = 2.2 μ H, C OUT = 4.7 μ F, se e parameter measurement information
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY
V IN
Input voltage range
(2)
I OUT = 0mA. PFM mode enabled (Mode = 0)
device not switching
2.05
22
6
40
V
μ A
I Q
Operating quiescent current
I OUT = 0mA. PFM mode enabled (Mode = 0)
device switching, V IN = 3.6V, V OUT = 1.2V
25
μ A
I OUT = 0 mA. Switching with no load
(MODE/DATA = V IN ), PWM operation,
V OUT = 1.8V, L = 2.2 μ H
3
mA
I SD
UVLO
Shutdown current
Undervoltage lockout threshold
EN = GND (3)
Falling
Rising
0.1
1.8
1.9
1
1.9
2.05
μ A
V
V
ENABLE, MODE THRESHOLD
V IH TH
Threshold for detecting high EN, MODE 2.05 V ≤ V IN ≤ 6V , rising edge
0.8
1
V
V IL TH HYS
Threshold for detecting low EN, MODE
2.05 V ≤ V IN ≤ 6V , falling edge
0.4
0.6
V
I IN
Input bias Current, EN, MODE
EN, MODE = GND or V IN = 3.6V
0.01
0.5
μ A
POWER SWITCH
R DS(ON)
High side MOSFET on-resistance
Low Side MOSFET on-resistance
V IN = 3.6V, T Jmax = 85°C; R DS(ON) max value
600
350
850
480
m ?
I LIMF
T SD
Forward current limit MOSFET high-
side
Forward current limit MOSFET low side
Thermal shutdown
V IN = 3.6V, open loop
Increasing junction temperature
690
550
850
840
150
1050
1220
mA
mA
°C
Thermal shutdown hysteresis
Decreasing junction temperature
20
°C
CONTROLLER
t ONmin
t OFFmin
Minimum ON time
Minimum OFF time
V IN 3.6V, V OUT = 1.8V, Mode = high, I OUT = 0 mA
135
40
ns
ns
OUTPUT
V REF
Internal Reference Voltage
0.70
V
V OUT
Output voltage accuracy
(4)
V IN = 3.6V, Mode = GND, device operating in PFM
Mode, I OUT = 0mA
V IN = 3.6V, MODE = V IN , T A = 25°C
I OUT = 0 mA
T A = –40°C to 85°C
–2.0%
–2.5%
0%
2.0%
2.5%
DC output voltage load regulation
DC output voltage line regulation
PWM operation, Mode = V IN = 3.6V, V OUT = 1.8 V
I OUT = 0 mA, Mode = V IN , 2.05V ≤ V IN ≤ 6V
0.001
0
%/mA
%/V
t Start
Start-up Time
Time from active EN to V OUT = 1.8V, V IN = 3.6V,
10 ? load
100
μ s
I LK_SW
Leakage current into SW pin
V IN = V OUT = V SW = 3.6 V, EN = GND (5)
0.1
0.5
μ A
(1)
(2)
(3)
(4)
(5)
In applications where high power dissipation and/or poor package thermal resistance is present, the maximum ambient temperature may
have to be derated. Maximum ambient temperature (T A(max) ) is dependent on the maximum operating junction temperature (T J(max) ), the
maximum power dissipation of the device in the application (PD(max)), and the junction-to-ambient thermal resistance of the
part/package in the application ( θ JA ), as given by the following equation: T A(max) = T J(max) – ( θ JA × P D(max) ).
The minimum required supply voltage for startup is 2.05V. The part is functional down to the falling UVL (Under Voltage Lockout)
threshold
Shutdown current into VIN pin, includes internal leakage
V IN = V O + 1.0 V
The internal resistor divider network is disconnected from FB pin.
4
Copyright ? 2009–2010, Texas Instruments Incorporated
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| TPS622313DRYR | 功能描述:直流/直流开关转换器 3MHz,500mA Step- Down Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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| TPS622314DRYR | 功能描述:直流/直流开关转换器 3MHz,500mA Step- Down Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| TPS622314DRYT | 功能描述:直流/直流开关转换器 3MHz,500mA Step- Down Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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