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參數(shù)資料
| 型號： | TPS5110PW |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.5 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封裝： | GREEN, PLASTIC, TSSOP-24 |
| 文件頁數(shù)： | 40/43頁 |
| 文件大小： | 813K |
| 代理商： | TPS5110PW |
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TPS5110
SLVS025B APRIL 2002 REVISED JULY 2004
6
www.ti.com
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME
NO.
I/O
DESCRIPTION
NAME
NO.
I/O
DESCRIPTION
CT
5
I/O
External capacitor from CT to GND adjusts frequency of the triangle oscillator.
FB
2
O
Feedback output of error amplifier
FLT
10
I/O
Fault latch timer pin. An external capacitor is connected between FLT and GND to set the FLT enable time
up.
GND
6
Signal GND
INV
1
I
Inverting input of the SBRC error amplifier, skip comparator, OVP/UVP comparators and POWERGOOD
comparator
INV_LDO
12
I
Inverting input of the LDO regulator, OVP/UVP comparators and POWERGOOD comparator
LDO_CUR
15
I
Current sense input of the LDO regulator.
LDO_GATE
14
O
Gate control output of an external MOSFET for LDO
LDO_OUT
13
I/O
LDO regulator’s output connection. If output voltage causes an over shoot at output current changes high
to low quickly, it pulls out electrical charge from this pin.
LDO_IN
16
I
Input of LDO regulator and current sense input of LDO regulator
LH
24
I/O
Bootstrap capacitor connection for high-side gate driver
LL
22
I/O
High side gate driving return. Connect this pin to the junction of the high side and low side MOSFET(s) for
floating drive configuration. This pin also is an input terminal for current comparator.
OUT_d
21
O
Gate drive output for low-side MOSFET(s)
OUT_u
23
O
Gate drive output for high-side MOSFET(s).
OUTGND
20
Ground for FET drivers. It is connected to the current limiting comparator’s negative input.
POWERGOOD
11
O
Power good open-drain output. PG comparators monitor both SBRC’s and LDO’s over voltage and under
voltage. The threshold is
±7%. When either output is beyond this condition, POWERGOOD output goes
low. When STBY or STBY_LDO goes high, the POWERGOOD pin’s output starts with high. POWER-
GOOD also monitors REG5V_IN’s UVLO output.
PWM_SEL
4
I
PWM or auto PWM/SKIP modes select.
H: auto PWM/SKIP
L: PWM fixed
REF
7
O
0.85-V reference voltage output. This 0.85-V reference voltage is used for setting the output voltage and
the voltage protections. This reference voltage is regulated from REG5V_IN power supply.
REG5V_IN
17
I
External 5-V input. This input is a supply voltage for internal circuits.
SOFTSTART
3
I/O
External capacitor between SOFTSTART and GND sets SBRC softstart time.
STBY
8
I
Standby control input for SBRC. SBRC can be switched into standby mode by grounding the STBY pin.
STBY_LDO
9
I
Standby control input for LDO regulator. LDO regulator can be switched into standby mode by grounding
the STBY_LDO pin.
TRIP
19
I
External resistor connection for SBRC’s output current protection control.
VIN_SENSE
18
I
SBRC supply voltage monitor. Input range is 4.5 V to 28 V. This pin is for reference of current limit.
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| TPS5110PWG4 | 功能描述:DC/DC 開關(guān)控制器 Sync Buck w/NMOS LDO Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS5110PWR | 功能描述:DC/DC 開關(guān)控制器 Sync Buck w/NMOS LDO Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS5110PWRG4 | 功能描述:DC/DC 開關(guān)控制器 Sync Buck w/NMOS LDO Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS51113 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:SYNCHRONOUS BUCK CONTROLLER WITH HIGH-CURRENT GATE DRIVER |
| TPS51113DRCR | 功能描述:DC/DC 開關(guān)控制器 4.5-13.2V Synch Buck Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
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