參數(shù)資料
型號(hào): TPIC74100QPWPRQ1
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 2.5 A SWITCHING REGULATOR, 440 kHz SWITCHING FREQ-MAX, PDSO20
封裝: GREEN, PLASTIC, HTSSOP-20
文件頁數(shù): 23/30頁
文件大?。?/td> 781K
代理商: TPIC74100QPWPRQ1
www.ti.com
BUCK/BOOST SWITCH-MODE REGULATOR
SLIS125 – DECEMBER 2006
Table 1. Terminal Functions
TERMINAL
DESCRIPTION
NAME
NO.
I/O
SCR1
1
I
Programmable slew-rate control
Cboot2
2
I
External bootstrap capacitor
Cboot1
3
I
External bootstrap capacitor
Vdriver
4
I
Input voltage source
L1
5
I
Inductor input (an external Schottky diode(1) to GND must be connected to L1)
PGND
6
I
Power ground
L2
7
I
Inductor output
VOUT
8
O
5-V regulated output
5Vg
9
O
Switched 5-V supply
AIN
10
I
Programmable alarm setting
CLP
11
I/O
Low-power operation mode (digital input)
RESET
12
O
Reset function (open drain)
AOUT
13
O
Alarm output (open drain)
REST
14
O
Programmable reset timer delay
Rmod
15
I
Main switching frequency modulation setting to minimize EMI
GND
16
I
Ground
Vlogic
17
O
Supply decoupling output (may be used as a 5-V supply for logic-level inputs)
ENABLE
18
I
Switch-mode regulator enable/disable
5Vg_ENABLE
19
I
Switched 5-V voltage regulator output enable/disable
SCR0
20
I
Programmable slew-rate control
Exposed thermal pad of the package should be connected to GND or left floating.
(1)
Maximum 0.4 V @ 1 A @ 125°C
3
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