MAX710ESE+-MAX710ESE+T Fast Delivery |IC PHOENIX CO.,LIMITED

MAX710ESE+T ,3.3V/5V or Adjustable, Step-Up Step-Down DC-DC Convertersapplications where the input varies above and below♦ Output:the regulated output voltage. They have ..
MAX711ESE ,3.3V/5V or Adjustable, Step-Up/Down DC-DC ConvertersELECTRICAL CHARACTERISTICS(V = 5.6V, STBY = PS, C = 0.1µF, C = 4.7µF, T = -40°C to +85°C, unless ot ..
MAX712 ,NiCd/NiMH Battery Fast-Charge ControllersApplicationsMAX712EPE -40°C to +85°C 16 Plastic DIPBattery-Powered EquipmentMAX712ESE -40°C to +85° ..
MAX7129CPL ,4-1/2 Digit Single-Chip A/D Converter with LCD DriverELECTRICAL CHARACTERISTICS (MAX7129) (V' to V" = 9V. VRE; :1.00V.TA = +25°C, tcus a 120kHz, unle ..
MAX7129CPL ,4-1/2 Digit Single-Chip A/D Converter with LCD Driverapplications involve the measurement ICL7129ACJL‘ (rc to +70%: 40 Lead CERDIP - and display of ana ..
MAX7129CPL ,4-1/2 Digit Single-Chip A/D Converter with LCD Driverfeatures high impe- dance differential inputs, excellent differential linearity, true ratiometric ..
MB47358 ,DUAL OPERATIONAL AMPLIFIERFUJITSU SEMICONDUCTORDS04-11104-3EDATA SHEETLINEAR ICDUAL OPERATIONAL AMPLIFIERMB47358DUAL OPERATIO ..
MB47393 ,DUAL COMPARATORFUJITSU SEMICONDUCTORDS04-12103-4EDATA SHEETASSPDUAL COMPARATORMB47393n DESCRIPTIONThe Fujitsu MB47 ..
MB47393P ,Dual comparatorFUJITSU SEMICONDUCTORDS04-12103-4EDATA SHEETASSPDUAL COMPARATORMB47393n DESCRIPTIONThe Fujitsu MB47 ..
MB47393P ,Dual comparatorFUJITSU SEMICONDUCTORDS04-12103-4EDATA SHEETASSPDUAL COMPARATORMB47393n DESCRIPTIONThe Fujitsu MB47 ..
MB47393PF ,Dual comparatorFUJITSU SEMICONDUCTORDS04-12103-4EDATA SHEETASSPDUAL COMPARATORMB47393n DESCRIPTIONThe Fujitsu MB47 ..
MB4752A ,SUBSCRIBER LINE INTERFACE IC" mm; gr T$544-A874 'j?itl,'l,lllill,ililill MB4752A April 1987 'llllllllllllllllllllllllill ..

MAX710ESE+-MAX710ESE+T
3.3V/5V or Adjustable, Step-Up Step-Down DC-DC Converters
AVAILABLE
EVALUATION KIT AVAILABLE
Functional Diagrams
Pin Configurations appear at end of data sheet.Functional Diagrams continued at end of data sheet.UCSP is a trademark of Maxim Integrated Products, Inc.
_______________General Description
The MAX710/MAX711 integrate a step-up DC-DC con-verter with a linear regulator to provide step-up/downvoltage conversion. They are optimized for batteryapplications where the input varies above and belowthe regulated output voltage. They have an input rangefrom +1.8V to +11V. Typical efficiency when boostingbattery inputs is 85%.The MAX710/MAX711 can be configured for minimumnoise or optimum efficiency. Shutdown control turns offthe part completely, disconnecting the input from theoutput (ISHDN= 0.2µA). Standby control turns off onlythe step-up converter and leaves the low-power linearregulator active (IQ= 7µA).The MAX710 has a preset 3.3V or 5V output voltage.The MAX711 has an adjustable output that can be setfrom +2.7V to +5.5V with two resistors. Both devicescome in 16-pin narrow SO packages.
________________________ApplicationsSingle-Cell, Lithium-Powered Portable Devices
Digital Cameras2- to 4-Cell AA Alkaline Hand-Held Equipment3.3V and Other Low-Voltage Systems2-, 3-, and 4-Cell Battery-Powered Equipment
Battery-Powered Devices with AC Input Adapters
____________________________FeaturesStep-Up/Down Voltage Conversion+1.8V to +11V Input RangeOutput:5V/250mA at VIN= 1.8V5V/500mA at VIN= 3.6VNo External FETs RequiredLoad Disconnected from Input in ShutdownBattery Drain:200µA No-Load (VIN= 4V)7µA in Standby0.2µA when OffLow-Noise and High-Efficiency Modes
3.3V/5V or Adjustable, Step-Up/Down DC-DC Converters LX
PGND
GND
REF
LBI+
LBI-
OUT
TOP VIEW
MAX710
MAX711
PGND
ILIM
3/5 (FB)
SHDN
STBY
N/E
LBO
( ) IS FOR THE MAX711.
__________________Pin Configuration
MAX710
LBI+LBO
N/E
SHDNOFFON
STBY
3/5
LBI-
REFPGND
0.1μF
GNDILIM
OUTPUT
3.3V/5V
+1.8V TO +11V
INPUT
OUT3.3VSTBY
__________Typical Operating Circuit
PART
MAX710C/DMAX710ESE
MAX711C/D0°C to +70°C-40°C to +85°C0°C to +70°C
TEMP. RANGEPIN-PACKAGEDice16 Narrow SODice
______________Ordering Information
MAX711ESE-40°C to +85°C16 Narrow SO
MAX710/MAX711
3.3V/5V or Adjustable, Step-Up/Down DC-DC Converters
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VPS= 5.6V, STBY= PS, CREF= 0.1µF, COUT= 4.7µF, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functionaloperation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure toabsolute maximum rating conditions for extended periods may affect device reliability.
PS, LX, OUT to GND............................................-0.3V to +11.5VILIM, SHDN, STBY, FB, 3/5, N/E, LBO, LBI-, LBI+, REF to GND...........................-0.3V to (VPS+ 0.3V)PGND to GND.......................................................-0.3V to +0.3VREF Short Circuit to GND...........................................ContinuousIOUT...................................................................................700mA
Continuous Power Dissipation (TA= +70°C)SO (derate 8.70mW/°C above +70°C)..........................696mWOperating Temperature Range...........................-40°C to +85°CStorage Temperature Range.............................-65°C to +160°CJunction Temperature......................................................+150°CLead Temperature (soldering, 10sec).............................+300°C
ILIM = GNDILIM = PSVLX= 5.6VMAX711, VPS= 2.7VMAX710, VPS= 3.7V
VSTBY= 0V, linear regulator
VPS= 5.6VFB = 1.25V= -40°C to +85°C, IREF= 0= 0°C to +85°C, IREF= 0
MAX711
VSTBY= VSHDN= logic high, current measuredinto PS pin; ILOAD= 0
VSTBY= 0VVSHDN= 0V
MAX711, OUT = FB
CONDITIONS1.11.51.95LX Current Limit0.50.81.3µA0.11LX Leakage Current0.61.2LX On-Resistance0.30.9
0.20.6nA150FB Input Current1.181.251.31FB Voltage0.9Full Load Start-Up Voltage
1.201.251.29mA10Standby Output Current1.231.281.32Reference Voltage1.241.281.31FB5.5Output Voltage-Adjustment Range100140Quiescent Current716Standby Quiescent CurrentµA0.15Shutdown Quiescent Current
UNITSMINTYPMAXPARAMETER= 0°C to +85°CTA= -40°C to +85°C
0mA ≤ILOAD250mAMAX711, OUT = FB%0.11Load Regulation
3/5= low, IOUT= 0 to 250mAV
4.85.05.2TA= 0°C to +85°C
4.65.05.3TA= -40°C to +85°C
3/5= high, IOUT= 0 to250mA, VPS= 4.7V3.173.33.43TA= 0°C to +85°C3.053.33.55TA= -40°C to +85°C
Output Voltage (MAX710)
0 < IOUT< 250mA, STBY= PS%0.5Output Voltage Load Regulation
STBY= PS, 1.8V to 5V%/V0.3Output Voltage Line Regulation
N/E= GND (Note 2)N/E =PSV1.87.01.811.0Input Voltage
MAX710/MAX711
3.3V/5V or Adjustable, Step-Up/Down DC-DC Converters
ELECTRICAL CHARACTERISTICS (continued)(VPS= 5.6V, STBY= PS, CREF= 0.1µF, COUT= 4.7µF, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
Note 1:Specifications at -40°C are guaranteed by design, not production tested.Note 2:Guaranteed by design (see Table 1).Note 3:The LBO comparator provides the correct result as long as one input is within the specified input range.
STBY, SHDN, N/E, 3/5, ILIM
STBY= PS
CONDITIONS0.4Input Low Voltage150Thermal Shutdown
UNITSMINTYPMAXPARAMETER
STBY, SHDN, N/E, 3/5, ILIM
STBY, SHDN, N/E, 3/5, ILIM
(Note 3)VLBI-, VLBI+= 1.25VmV640100Hysteresis1.6Input High VoltagenA150Input Bias Current1.210Input Range LBI-, LBI+nA150Input Bias Current LBI-, LBI+
VLBI-= 1.25V
ILBO= 2mA, VLBI-= 1.25V, VLBI+= 1VILBO= -300µA, VLBI-= 1.25V, VLBI+= 2V-25+25LBI/LBO Offset Voltage
0.4VVPS- 0.2VLBO Output Voltage
VOUT= 5.0V0.71.3Output PFET Resistance
VPS = 3V, VOUT= 0VµA0.43Output PFET LeakageMAX711, VOUT= 2.7V1.63.0
MAX710, VOUT= 3.0V1.32.4
STBY= PS°C20Thermal Shutdown Hysteresis
LOGIC
LBI/LBO COMPARATOR
MAX710/MAX711
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
3.3V/5V or Adjustable, Step-Up/Down DC-DC Converters
EFFICIENCY vs. LOAD CURRENT—
HIGH-EFFICIENCY AND LOW-NOISE MODES
(VOUT = 5V)
MAX710/711 TOC04
LOAD CURRENT (mA)
EFFICIENCY (%)
VOUT = 5V
VIN = 2.5V
N/E = GND
N/E = PS
ILIM = 0.8AILIM = 1.5A
LINEAR-REGULATOR POWER-SUPPLY REJECTION RATIO vs. FREQUENCY
MAX710/711 TOC08
FREQUENCY (kHz)
PSRR (dB)30
EFFICIENCY vs. LOAD CURRENT—HIGH-EFFICIENCY AND LOW-NOISE MODES
(VOUT = 3.3V)
MAX710/711 TOC05
LOAD CURRENT (mA)
EFFICIENCY (%)
VOUT = 3.3V
VIN = 2.5V
ILIM = 0.8A
ILIM = 0.8A
ILIM = 1.5A
LOW-NOISE MODE
HIGH-EFFICIENCY MODE
ILIM = 1.5A
NO-LOAD BATTERY CURRENT
vs. INPUT VOLTAGE
MAX710/711 TOC06
INPUT VOLTAGE (V)
SUPPLY CURRENT (µA)
N/E = GND
ILIM = GND (1.5A)
ILIM = PS (0.8A)
SHUTDOWN CURRENTvs. INPUT VOLTAGE
MAX710/711 TOC09
INPUT VOLTAGE (V)
SHUTDOWN CURRENT (µA)
MAXIMUM OUTPUT CURRENTvs. INPUT VOLTAGE
MAX710/711 TOC07
INPUT VOLTAGE (V)
MAXIMUM OUTPUT CURRENT (mA)
ILIM = GND
ILIM = PS
N/E = GND
N/E = PS0.11010001100
EFFICIENCY vs. OUTPUT CURRENT—
HIGH-EFFICIENCY MODE (VOUT = 5V)
MAX710/711 TOC01
OUTPUT CURRENT (mA)
EFFICIENCY (%)
VIN = 1V
VOUT = 5VN/E = GND
VIN = 3.6V
VIN = 2.5V
VIN = 5.6V
VIN = 1.8V
EFFICIENCY vs. OUTPUT CURRENT—
HIGH-EFFICIENCY MODE (VOUT = 3.3V)
MAX710/711 TOC02
OUTPUT CURRENT (mA)
EFFICIENCY (%)
VOUT = 3.3V
N/E = GND
VIN = 2.5V
VIN = 1V
VIN = 1.8V
MINIMUM START-UP INPUT VOLTAGEvs. LOAD CURRENT
LOAD CURRENT (mA)
INPUT VOLTAGE (V)
VOUT = 5V
N/E = PS
MAX710/MAX711
3.3V/5V or Adjustable, Step-Up/Down DC-DC Converters
LINE-TRANSIENT RESPONSE
MAX710/711 TOC10
A: VOUT = 3.3V (100mV/div, AC COUPLED), N/E = GND
B: VIN = 2V TO 4V, IOUT = 100mA
2ms/div
A: VOUT = 3.3V (50mV/div, AC COUPLED), N/E = PS
B: IOUT = 10mA TO 100mA
LOAD-TRANSIENT RESPONSE
MAX710/711 TOC11
1ms/div
VIN = 2.5V, IOUT = 20mA, N/E = GND
VOUT = 5V (20mV/div, AC COUPLED), IOUT = 20mA
200μs/div
OUTPUT RIPPLE (HIGH-EFFICIENCY MODE)
MAX710/711 TOC12
VIN = 2.5V, IOUT = 20mA, N/E = PS
VOUT = 5V (20mV/div, AC COUPLED), IOUT = 20mA
OUTPUT RIPPLE (LOW-NOISE MODE)
MAX710/711 TOC13
200μs/div
A: VOUT (2V/div), IOUT = 100mA
B: VSHDN (2V/div)
START-UP DELAY
MAX710/711 TOC14
20μs/div
A: VOUT (2V/div), IOUT = 100mA
B: VSHDN (2V/div)
TURN-OFF DELAY
MAX710/711 TOC15
200μs/div
____________________________Typical Operating Characteristics (continued)(TA = +25°C, unless otherwise noted.)
MAX710/MAX711
_______________Detailed DescriptionThe MAX710/MAX711 integrate a step-up DC-DC con-verter with a linear regulator to provide step-up/downvoltage conversion. The step-up switch-mode regulatorcontains an N-channel power MOSFET switch. It alsoshares a precision voltage reference with a linear regu-lator that contains a P-channel MOSFET pass element(Figure 1).
Step-Up OperationA pulse-frequency-modulation (PFM) control schemewith a constant 1µs off-time and variable on-time con-trols the N-channel MOSFET switch. The N-channelswitch turns off when the part reaches the peak currentlimit or the 4µs maximum on-time. The ripple frequencyis a function of load current and input voltage.
Step-Down OperationThe low-dropout linear regulator consists of a refer-ence, an error amplifier, and a P-channel MOSFET. Thereference is connected to the error amplifier’s inverting
input. The error amplifier compares this reference withthe selected feedback voltage and amplifies the differ-ence. The difference is conditioned and applied to theP-channel pass transistor’s gate.
Operating ConfigurationsThe MAX710/MAX711 have several operating configu-rations to minimize noise and optimize efficiency for dif-ferent input voltage ranges. These configurations areaccomplished via the N/Einput, which controls opera-tion of the on-chip linear regulator.
With N/Elow, the linear regulator behaves as a 0.7Ω(at5V output) PFET switch when the IC is boosting, and asa conventional linear regulator when VIN> VOUT. Thisprovides optimum boost efficiency, but the PFET doeslittle to reject boost-converter output ripple. With N/Ehigh, boost ripple rejection is optimized by maintainingheadroom (VFV, typically 0.5V at 5V output) across thelinear regulator. Boost mode efficiency is then about10% lower than with N/Ehigh.
3.3V/5V or Adjustable, Step-Up/Down DC-DC Converters
______________________________________________________________Pin Description
Drain Connection for internal N-channel power MOSFETLX1
Power GroundPGND2
Shutdown Input. When low, the entire circuit is off and OUT is actively pulled to GND.SHDN4
Inductor Current-Limit-Select Input. Connect to GND for 1.5A limit and to PS for 0.8A limit.ILIM3
Standby Input. Connect to GND to disable boost circuit. Connect to PS for normal operation.STBY5
Selects low-noise or high-efficiency mode. Connect to GND for high efficiency and to PS forlowest noise. See Operating Configurations section.N/E7
Selects the output voltage. Connect to GND for 5V output and to OUT for 3.3V output.3/56
Low-Battery Comparator OutputLBO88
Negative Input to Low-Battery ComparatorLBI-10
Source of internal PFET regulator. The IC is powered from PS.PS12
Positive Input to Low-Battery ComparatorLBI+11
1.28V Reference Voltage Output. Bypass with a 0.1µF capacitor to GND.REF13
Power GroundPGND15
Analog Ground. Must be low impedance. Solder directly to ground plane.GND14
Drain Connection for internal N-channel power MOSFETLX1616
Linear-Regulator Output. Bypass with a 4.7µF capacitor to GND.OUT9
MAX711MAX710FUNCTIONNAMEPIN
Feedback InputFB—6
MAX710/MAX711

Partno	Mfg	Dc	Qty	Available	Descript
MAX710ESE+ \|MAX710ESE	MAXIM	N/a	700	avai	3.3V/5V or Adjustable, Step-Up Step-Down DC-DC Converters
MAX710ESE+T	N/A	N/a	2500	avai	3.3V/5V or Adjustable, Step-Up Step-Down DC-DC Converters