參數(shù)資料
型號(hào): TPS5103DB
廠商: Texas Instruments, Inc.
英文描述: MULTIPLE MODE SYNCHRONOUS DC/DC CONTROLLER
中文描述: 多模同步DC / DC控制器
文件頁(yè)數(shù): 3/37頁(yè)
文件大?。?/td> 1052K
代理商: TPS5103DB
TPS5103
MULTIPLE MODE SYNCHRONOUS DC/DC CONTROLLER
SLVS240 – SEPTEMBER 1999
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Terminal Functions
TERMINAL
NAME
I/O
DESCRIPTION
NO.
COMP
8
I
Comparator input for voltage monitor
CT
4
I/O
External capacitor from CT to GND for adjusting the triangle oscillator and decreasing the current limiting
voltage
FB
3
O
Feedback output of error amp
GND
6
Control GND
INV
2
I
Inverting input of both error amp and hysteretic comparator
Bootstrap. Connect 1
μ
F low-ESR capacitor from LH to LL.
Bootstrap low. High side gate driving return and output current protection. Connect to the junction of the high
side and low side FETs for floating drive configuration.
LH
20
I/O
LL
18
I/O
OUT_d
17
I/O
Gate-drive output for low-side power switching FETs
OUTGND
16
Ground for FET drivers
OUT_u
19
O
Gate-drive output for high-side power switching FETs
PWMSKIP
9
I
PWM/SKIP mode select
L:PWM mode
H:SKIP mode
REF
7
O
1.185-V reference voltage output
RT
SOFTSTART
5
I/O
External resistor connection for adjusting the triangle oscillator.
1
I
External capacitor from SOFTSTART to GND for soft start control
STBY
10
I
Standby control
TRIP
15
I
External resistor connection for output current control
VCC
VCC_SENSE
13
I
Supply voltage input
14
I
Supply voltage sense for current protection
VREF5
12
O
5-V-internal regulator output
VREG5V_IN
11
I
External 5-V input (input voltage range = 4.5 V to 25 V)
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