參數(shù)資料
型號: S-1701F5043-M5T1U
元件分類: 固定正電壓單路輸出LDO穩(wěn)壓器
英文描述: 5 V FIXED POSITIVE LDO REGULATOR, 0.21 V DROPOUT, PDSO5
封裝: HALOGEN FREE AND LEAD FREE, SOT-23, 5 PIN
文件頁數(shù): 38/71頁
文件大?。?/td> 582K
代理商: S-1701F5043-M5T1U
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.3.0_00
S-1701 Series
Seiko Instruments Inc.
43
A
B
VDD
tD
VSS
Minimum operating voltage
Output from VDOUT pin
VIN (VSENSE)
VSS
(1)
(2)
(3)
(5)
(4)
Hysteresis width (VHYS)
Release voltage (
+VDET)
Detection voltage (
VDET)
Remark The above figure shows the case when the SENSE pin is connected to VIN.
Figure 37 Operation
2. Delay circuit
The delay circuit delays the output signal from the time when the SENSE voltage (VSENSE) exceeds the release voltage
(
+VDET) when VSENSE is turned on (refer to point B in Figure 37). The output signal is not delayed when VSENSE goes
below the detection voltage (
VDET) (refer to point A in Figure 37).
The delay time (tD) is a fixed value that is determined by a counter and a built-in clock generator which consists of
constant current and a capacitor.
3. Delay circuit output voltage detection type (S-1701 Series D/E/F/K/L/M/U/V/W types)
If the input voltage or load current changes transiently, an undershoot or overshoot occurs in the output voltage of the
regulator. In the product types in which the output voltage of the regulator is detected by the detector, if the output
voltage is the detection voltage or lower due to the undershoot, the detector operates and a reset signal may be
output. To prevent this, set the value of the input-and-output capacitor of a regulator so that the undershoot is the
minimum value or set a voltage range that allows the difference between the output voltage and detection voltage to be
equal to or greater than the undershoot.
相關(guān)PDF資料
PDF描述
S-1701G2524-M5T1U 2.5 V FIXED POSITIVE LDO REGULATOR, 0.25 V DROPOUT, PDSO5
S-1701N1827-M5T1U 1.8 V FIXED POSITIVE LDO REGULATOR, 0.38 V DROPOUT, PDSO5
S-1701N3315-M5T1U 3.3 V FIXED POSITIVE LDO REGULATOR, 0.21 V DROPOUT, PDSO5
S-1701N3315-U5T1U 3.3 V FIXED POSITIVE LDO REGULATOR, 0.21 V DROPOUT, PDSO5
S-1701Q3227-U5T1U 3.2 V FIXED POSITIVE LDO REGULATOR, 0.21 V DROPOUT, PDSO5
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