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TPS60140 데이터시트(PDF) 4 Page - Texas Instruments

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부품명 TPS60140
상세설명  Low Power DC-DC Converter Regulated
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

TPS60140 데이터시트(HTML) 4 Page - Texas Instruments

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1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
GND
GND
ENABLE
FB
OUT
C1+
IN
C1−
PGND
PGND
GND
GND
NC
PG
NC
C2+
IN
C2−
PGND
PGND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
GND
GND
ENABLE
FB
OUT
C1+
IN
C1−
PGND
PGND
GND
GND
LBI
LBO
NC
C2+
IN
C2−
PGND
PGND
TPS60140, TPS60141
SLVS273A – FEBRUARY 2000 – REVISED NOVEMBER 2015
www.ti.com
6 Device Comparison Table
PART NUMBER
PACKAGE
PACKAGE DESIGNATOR
DEVICE FEATURES
TPS60140
Low-battery detector
20-pin thermally enhanced HTSSOP
PWP
2-cell to 5 V, 100 mA
TPS60141
Power-good detector
7 Pin Configuration and Functions
PWP Package (TPS60140)
PWP Package (TPS60141)
20 Pin-HTSSOP
20 Pin-HTSSOP
Top View
Top View
Pin Functions
PIN
I/O
DESCRIPTION
NAME
NO.
C1+
6
Positive terminal of the flying capacitor C1
C1
8
Negative terminal of the flying capacitor C1
C2+
15
Positive terminal of the flying capacitor C2
C2
13
Negative terminal of the flying capacitor C2
ENABLE input. Connect ENABLE to IN for normal operation. When ENABLE is a logic low, the device turns off and the
ENABLE
3
I
supply current decreases to 0.05 µA. The output is disconnected from the input when the device is placed in shutdown.
Feedback input. Connect FB to OUT as close to the load as possible to achieve best regulation. A resistive divider is on the
FB
4
I
chip to match the output voltage to the internal reference voltage of 1.21 V.
1, 2, 19,
GND
Ground. Analog ground for internal reference and control circuitry. Connect to PGND through a short trace.
20
IN
7,14
I
Supply input. Bypass IN to PGND with capacitor CIN. Connect both IN terminals through a short trace.
Low battery detector output (TPS60140) or power good output (TPS60141). Open-drain output of the low-battery indicator or
LBO/PG
17
O
power-good comparator. It can sink 1 mA. TI recommends a 100-k
Ω to 1-MΩ pullup. Leave the terminal unconnected if the
low-battery or power-good detector function is not used.
Low battery detector input (TPS60140 only). The voltage applied to this terminal is compared to the internal 1.21-V reference
LBI/NC
18
I
voltage. Connect the terminal to ground if the low-battery comparator is not used. On the TPS60141, this terminal is not
connected to the chip and should remain unconnected.
NC
16
Not connected
OUT
5
O
Regulated 5-V power output. Bypass OUT to PGND with the output filter capacitor COUT.
PGND
9
−12
Power ground. The charge-pump current flows through this terminal. Connect all PGND terminals together.
4
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Product Folder Links: TPS60140 TPS60141


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