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TPS60312

更新时间： 2024-09-14 22:52:55
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德州仪器 - TI 输出元件功效泵
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20页 336K
描述
SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

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TPS60312 数据手册

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TPS60310, TPS60311, TPS60312, TPS60313  
SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,  
HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE  
SLVS362A – MAY 2001 – REVISED AUGUST 2001  
features  
applications  
D
D
D
D
D
D
Regulated 3-V or 3.3-V Output Voltage With  
up to 20-mA Output Current From a  
0.9-V to 1.8-V Input Voltage Range  
D
D
D
D
D
D
D
Pagers  
Battery-Powered Toys  
Portable Measurement Instruments  
Home Automation Products  
High Power Conversion Efficiency (up to  
90%) Over Wide Output Current Range,  
Optimized for 1.2-V Battery Voltage  
Medical Instruments (Like Hearing  
Instruments)  
Snooze Mode for Improved Efficiency at  
Low-Output Current  
Metering Applications Using MSP430  
Microcontroller  
Additional Output With 2 Times V (OUT1)  
I
Device Quiescent Current Less Than 2 µA  
Portable Smart Card Readers  
Supervisor Included; Open Drain or  
Push-Pull Power Good Output  
DGS PACKAGES  
(TOP VIEW)  
D
No Inductors Required/Low EMI  
PG  
SNOOZE  
C1–  
1
2
3
4
5
10  
9
D
Only Five Small, 1-µF Ceramic Capacitors  
Required  
GND  
C2–  
C2+  
OUT2  
V
8
IN  
C1+  
7
D
Microsmall 10-Pin MSOP Package  
6
OUT1  
description  
The TPS6031X step-up, regulated charge pumps  
ACTUAL SIZE  
3,05 mm x 4,98 mm  
generate a 3-V ±4% or 3.3-V ±4% output voltage  
from a 0.9-V to 1.8-V input voltage (one alkaline,  
NiCd, or NiMH battery).  
Only five small 1-µF ceramic capacitors are required to build a complete high-efficiency dc/dc charge pump  
converter. To achieve the high efficiency over a wide input voltage range, the charge pump automaticallyselects  
between a 3x or 4x conversion mode.  
typical application circuit  
EFFICIENCY  
vs  
OUTPUT CURRENT (OUT2)  
C1F  
1 µF  
C2F  
1 µF  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
Snooze Mode  
2
4
8
7
C1– C1+ C2– C2+  
INPUT  
0.9 V to 1.8 V  
2× IN  
Max 40 mA  
5
3
+
OUT1  
V
IN  
+
C
1 µF  
(OUT1)  
C
1 µF  
IN  
TPS60310  
OUT2  
3.3 V ±4%  
Max 20 mA  
(OUT2)  
1 µF  
6
Normal Mode  
+
C
R
1
SNOOZE  
10  
PG  
ON/OFF  
GND  
9
V = 1.3 V  
I
0.001 0.01  
0.1  
1
10  
100  
I
O
– Output Current (OUT2) – mA  
Snooze mode improves efficiency at an output current  
in the range of 1 µA to 100 µA.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
Copyright 2001, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...20

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