MAX711ESE Maxim Integrated Products, MAX711ESE Datasheet

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MAX711ESE

Manufacturer Part Number
MAX711ESE
Description
DC/DC Switching Converters 3.3/5V or Adjustable Step-Up Step-Down
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX710ESE.pdf (12 pages)

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Meier Automation Equipment Co., Limited Meier Automation Equipment Co., Limited
Part Number:
MAX711ESE
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Quantity:
20 000
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Part Number:
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The MAX710/MAX711 integrate a step-up DC-DC con-
verter with a linear regulator to provide step-up/down
voltage conversion. They are optimized for battery
applications where the input varies above and below
the regulated output voltage. They have an input range
from +1.8V to +11V. Typical efficiency when boosting
battery inputs is 85%.
The MAX710/MAX711 can be configured for minimum
noise or optimum efficiency. Shutdown control turns off
the part completely, disconnecting the input from the
output (I
the step-up converter and leaves the low-power linear
regulator active (I
The MAX710 has a preset 3.3V or 5V output voltage.
The MAX711 has an adjustable output that can be set
from +2.7V to +5.5V with two resistors. Both devices
come in 16-pin narrow SO packages.
________________________Applications
19-1254; Rev 0; 7/97
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
__________Typical Operating Circuit
+1.8V TO +11V
_______________General Description
Single-Cell, Lithium-Powered Portable Devices
Digital Cameras
2- to 4-Cell AA Alkaline Hand-Held Equipment
3.3V and Other Low-Voltage Systems
2-, 3-, and 4-Cell Battery-Powered Equipment
Battery-Powered Devices with AC Input Adapters
STBY
INPUT
3.3V
ON
SHDN
C1
5V
OFF
ON
= 0.2µA). Standby control turns off only
0.1 F
Q
C3
________________________________________________________________ Maxim Integrated Products
= 7µA).
LBI+
SHDN
STBY
3/5
LBI-
REF
PGND
MAX710
GND ILIM
N/E
LBO
OUT
PS
LX
Step-Up/Down DC-DC Converters
L1
C4
OUTPUT
3.3V/5V
C2
____________________________Features
______________Ordering Information
MAX710C/D
MAX710ESE
MAX711C/D
MAX711ESE
__________________Pin Configuration
3.3V/5V or Adjustable,
Step-Up/Down Voltage Conversion
+1.8V to +11V Input Range
Output:
No External FETs Required
Load Disconnected from Input in Shutdown
Battery Drain:
Low-Noise and High-Efficiency Modes
PART
TOP VIEW
5V/250mA at V
5V/500mA at V
200µA No-Load (V
7µA in Standby
0.2µA when Off
( ) IS FOR THE MAX711.
3/5 (FB)
PGND
SHDN
STBY
ILIM
LBO
N/E
LX
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
0°C to +70°C
0°C to +70°C
1
2
3
4
5
6
7
8
IN
IN
= 1.8V
= 3.6V
IN
MAX710
MAX711
= 4V)
SO
Dice
16 Narrow SO
Dice
16 Narrow SO
16
15
14
13
12
11
10
PIN-PACKAGE
9
LX
PGND
GND
REF
PS
LBI+
LBI-
OUT
1

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MAX711ESE Summary of contents

Page 1

... No External FETs Required Load Disconnected from Input in Shutdown Battery Drain: 200µA No-Load (V 7µA in Standby 0.2µA when Off Low-Noise and High-Efficiency Modes ______________Ordering Information PART MAX710C/D MAX710ESE MAX711C/D MAX711ESE __________________Pin Configuration TOP VIEW L1 LBO OUTPUT OUT 3.3V/ FOR THE MAX711. ...

Page 2

Adjustable, Step-Up/Down DC-DC Converters ABSOLUTE MAXIMUM RATINGS PS, LX, OUT to GND............................................-0.3V to +11.5V ILIM, SHDN, STBY, FB, 3/5, N/E, LBO, LBI-, LBI+, REF to GND ...........................-0. PGND to GND .......................................................-0.3V to +0.3V REF Short Circuit ...

Page 3

ELECTRICAL CHARACTERISTICS (continued) = 5.6V, STBY = PS 0.1µ REF T = +25°C.) (Note 1) A PARAMETER Output PFET Resistance Output PFET Leakage Thermal Shutdown Thermal Shutdown Hysteresis LOGIC Input Low Voltage Input High Voltage ...

Page 4

Adjustable, Step-Up/Down DC-DC Converters __________________________________________Typical Operating Characteristics (T = +25°C, unless otherwise noted.) A EFFICIENCY vs. OUTPUT CURRENT— HIGH-EFFICIENCY MODE (V = 5V) OUT 5. 3. 2.5V IN ...

Page 5

Operating Characteristics (continued +25°C, unless otherwise noted.) A LINE-TRANSIENT RESPONSE 2ms/div 3.3V (100mV/div, AC COUPLED), N/E = GND OUT 4V 100mA IN OUT OUTPUT RIPPLE (HIGH-EFFICIENCY MODE) ...

Page 6

Adjustable, Step-Up/Down DC-DC Converters ______________________________________________________________Pin Description PIN NAME MAX710 MAX711 Drain Connection for internal N-channel power MOSFET 2 2 PGND Power Ground 3 3 ILIM Inductor Current-Limit-Select Input. Connect to GND for 1.5A limit and ...

Page 7

N/E V OUT REF1 V FV MAX710 SHDN REFA REF REFB STBY LBI+ LBI- LBO ( ) IS FOR MAX711. Figure 1. Functional Diagram _______________________________________________________________________________________ 3.3V/5V or Adjustable, Step-Up/Down DC-DC Converters ERROR PS AMP2 t ON FIXED t DRV OFF ...

Page 8

Adjustable, Step-Up/Down DC-DC Converters In high-efficiency mode (N/E = low), the maximum input voltage is limited to 7V. This voltage limitation is easily overcome, however, by configuring the LBO out- put to change modes based on input voltage, ...

Page 9

Configuration 3: High Efficiency, 11V this configuration, N/E is driven high by LBO when V > 6.5V (Figure 2b). When V IN boosts, and the linear regulator operates as a switch, with minimum forward drop. When V regulation ...

Page 10

Adjustable, Step-Up/Down DC-DC Converters Table 2. Component Selection INDUCTORS (L1) Sumida CD75-220 (1.5A), CDRH-74-220 (1.23A), or CD54-220 Coilcraft DO33-08P-223 where V is the desired threshold of the low-battery LBT detector and V is the voltage applied to the ...

Page 11

Information ______________________________________________________________________________________ 3.3V/5V or Adjustable, Step-Up/Down DC-DC Converters 11 ...

Page 12

Adjustable, Step-Up/Down DC-DC Converters 12 ______________________________________________________________________________________ NOTES ...

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