MAX8660ETL+T Maxim Integrated Products, MAX8660ETL+T Datasheet
MAX8660ETL+T
Specifications of MAX8660ETL+T
Related parts for MAX8660ETL+T
MAX8660ETL+T Summary of contents
Page 1
... THIN QFN 5mm x 5mm x 0.8mm ( ) ARE FOR THE MAX8661 ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. , PMICs with Dynamic Q ♦ Optimized for Marvell’s PXA300 and Armada 100 Family of Processors ♦ ...
Page 2
High-Efficiency, Low-I Voltage Management for Mobile Applications General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 3
High-Efficiency, Low-I Voltage Management for Mobile Applications Design Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 4
High-Efficiency, Low-I Voltage Management for Mobile Applications ABSOLUTE MAXIMUM RATINGS IN, IN5, IN6, IN67, EN2, EN34, EN5, LBO, RSO, MR, SET1, SET2, V1, V2, V3, V4, SCL, SDA, SRAD to AGND..................................................-0.3V to +7.5V LBF, LBR, EN1, RAMP to AGND .................-0.3V ...
Page 5
High-Efficiency, Low-I Voltage Management for Mobile Applications ELECTRICAL CHARACTERISTICS (continued 3.6V, Figure IN5 IN67 IN8 PARAMETER SYMBOL PWM Switching Frequency REG1—SYNCHRONOUS STEP-DOWN DC-DC CONVERTER (MAX8660, MAX8660A, MAX8660B only) V1 ...
Page 6
High-Efficiency, Low-I Voltage Management for Mobile Applications ELECTRICAL CHARACTERISTICS (continued 3.6V, Figure IN5 IN67 IN8 PARAMETER SYMBOL REG2—SYNCHRONOUS STEP-DOWN DC-DC CONVERTER V2 Voltage Accuracy (MAX8660/MAX8860B) V2 Voltage Accuracy (MAX8660A) ...
Page 7
High-Efficiency, Low-I Voltage Management for Mobile Applications ELECTRICAL CHARACTERISTICS (continued 3.6V, Figure IN5 IN67 IN8 PARAMETER SYMBOL p-Channel Current-Limit Threshold n- C hannel ossi ...
Page 8
High-Efficiency, Low-I Voltage Management for Mobile Applications ELECTRICAL CHARACTERISTICS (continued 3.6V, Figure IN5 IN67 IN8 PARAMETER SYMBOL EN34 to V4 Enable Time t PHLVTH4 Internal Off-Discharge Resistance Minimum Duty ...
Page 9
High-Efficiency, Low-I Voltage Management for Mobile Applications ELECTRICAL CHARACTERISTICS (continued 3.6V, Figure IN5 IN67 IN8 PARAMETER SYMBOL LBO, RSO Output-High Leakage Current LBO Output Low Level for LBO Assertion ...
Page 10
High-Efficiency, Low-I Voltage Management for Mobile Applications ELECTRICAL CHARACTERISTICS (continued 3.6V, Figure IN5 IN67 IN8 PARAMETER SYMBOL TIMING Clock Frequency Hold Time (Repeated) START t Condition ...
Page 11
High-Efficiency, Low-I Voltage Management for Mobile Applications (Circuit of Figure 3.6V +25°C, unless otherwise noted QUIESCENT CURRENT vs. INPUT VOLTAGE 100 2.5 3.0 ...
Page 12
High-Efficiency, Low-I Voltage Management for Mobile Applications (Circuit of Figure 3.6V +25°C, unless otherwise noted REG1 EFFICIENCY vs. LOAD CURRENT 100 FORCED-PWM NORMAL 4. ...
Page 13
High-Efficiency, Low-I Voltage Management for Mobile Applications (Circuit of Figure 3.6V +25°C, unless otherwise noted REG2 EFFICIENCY vs. LOAD CURRENT 95 FORCED-PWM 90 NORMAL 4. ...
Page 14
High-Efficiency, Low-I Voltage Management for Mobile Applications (Circuit of Figure 3.6V +25°C, unless otherwise noted REG3 EFFICIENCY vs. LOAD CURRENT 90 FORCED-PWM NORMAL 4. ...
Page 15
High-Efficiency, Low-I Voltage Management for Mobile Applications (Circuit of Figure 3.6V +25°C, unless otherwise noted REG4 EFFICIENCY vs. LOAD CURRENT 95 FORCED-PWM 90 NORMAL 4. ...
Page 16
High-Efficiency, Low-I Voltage Management for Mobile Applications (Circuit of Figure 3.6V +25°C, unless otherwise noted REG5 OUTPUT VOLTAGE vs. INPUT VOLTAGE 1.83 100mA LOAD 1.82 1.81 1.80 1.79 1.78 1.77 2.5 3.0 3.5 ...
Page 17
High-Efficiency, Low-I Voltage Management for Mobile Applications (Circuit of Figure 3.6V +25°C, unless otherwise noted REG6/REG7 OUTPUT VOLTAGE vs. INPUT VOLTAGE 1.83 100mA LOAD 1.82 1.81 1.80 1.79 1.78 1.77 2.5 3.0 3.5 ...
Page 18
High-Efficiency, Low-I Voltage Management for Mobile Applications (Circuit of Figure 3.6V +25°C, unless otherwise noted REG8 OUTPUT VOLTAGE vs. INPUT VOLTAGE 5mA LOAD 3.4 3.2 3.0 2.8 2.6 2.4 2.2 2.0 2.5 3.0 ...
Page 19
High-Efficiency, Low-I Voltage Management for Mobile Applications PIN NAME MAX8660 MAX8861 REG5 Power Input. Connect IN5 ensure V5 rises first to meet the Marvell PXA3xx processor’s sequencing requirements. If adherence to this sequencing specification is not 1 ...
Page 20
High-Efficiency, Low-I Voltage Management for Mobile Applications PIN NAME MAX8660 MAX8661 ound . C onnect and tog ...
Page 21
High-Efficiency, Low-I Voltage Management for Mobile Applications PIN NAME MAX8660 MAX8661 REG2 Enable Input. Drive EN2 high to turn on REG2. EN2 has hysteresis so that an RC can EN2 used to implement manual sequencing with respect ...
Page 22
High-Efficiency, Low-I Voltage Management for Mobile Applications V1 MAX8660 EN1 EN2 EN5 EN34 RSO LBO Figure 1. Example MAX8660 Connection to Marvell’s PXA3xx Processor. This is one example only. Other ...
Page 23
High-Efficiency, Low-I Voltage Management for Mobile Applications BATT IN BATTERY LBF (1.20V) LBR (1.25V) OPEN-DRAIN LOW BATT OUT LBO TO nBATT_FAULT AGND EN1 FROM CPU EN2 SYS_EN IN8 TO IN V8, V8 VCC_BBATT (3.3V 30mA, ALWAYS ON) MR HARDWARE RESET ...
Page 24
High-Efficiency, Low-I Voltage Management for Mobile Applications 2.6V TO 6.0V IN INPUT R1 1.82MΩ R2 80.6kΩ 1MΩ R5 300kΩ LBO EN1 EN2 EN34 EN5 SET1 SET2 C21 0.1µ C10 0.1µF R6 300kΩ ...
Page 25
High-Efficiency, Low-I Voltage Management for Mobile Applications Detailed Description The MAX8660/MAX8661 PMICs are optimized for devices using the applications processors, including smart cellular phones, PDAs, Internet appliances, and other portable devices requiring substantial computing and multimedia capability and low power ...
Page 26
High-Efficiency, Low-I Voltage Management for Mobile Applications Table 2. Maxim and Marvell PXA3xx Digital Signal Terminology MAXIM MARVELL EN34 PWR_EN EN1, EN2, EN5 SYS_EN RSO nRESET LBO nBATT_FAULT GPIO33 SDA PWR_SDA GPIO32 SCL PWR_SCL Step-Down DC-DC Converters REG1 (VCC_IO) Step-Down ...
Page 27
High-Efficiency, Low-I Voltage Management for Mobile Applications EN2 is a dedicated enable input for REG2. Drive EN2 high to enable REG2 or drive EN2 low to disable REG2. EN2 has hysteresis so that an RC may be used to implement ...
Page 28
High-Efficiency, Low-I Voltage Management for Mobile Applications converters to maintain regulation until the input voltage falls below the desired output voltage plus the dropout voltage specification of the converter. During 100% duty-cycle operation, the high-side p-channel MOSFET turns on constantly, ...
Page 29
High-Efficiency, Low-I Voltage Management for Mobile Applications between R and the output-voltage ramp rates. A RAMP 56kΩ R satisfies the typical requirements of RAMP Marvell PXA3xx processors; 200µs after being enabled, REG3 and REG4 linearly ramp from 0V to the ...
Page 30
High-Efficiency, Low-I Voltage Management for Mobile Applications REG3/REG4 Enable (EN34, EN3, EN4) REG3 and REG4 have independent I (EN3, EN4) and a shared hardware-enable input (EN34). As shown in Figure 5, the EN34 hardware- enable input is logically ORed with ...
Page 31
High-Efficiency, Low-I Voltage Management for Mobile Applications Table 7. Power Modes and Corresponding Quiescent Operating Currents POWER POWER DOMAIN MODE STATE V1, V2, V3, V4, V5, V6, V7, ALL ON and V8 are on V1, V2, V3, V4, V5, RUN, ...
Page 32
High-Efficiency, Low-I Voltage Management for Mobile Applications Voltage Monitors, Reset, and Undervoltage-Lockout Functions Undervoltage and Overvoltage Lockout When the V is below V (typically 2.35V), the IN UVLO MAX8660/MAX8661 enter its undervoltage-lockout mode (UVLO). UVLO forces the device to a ...
Page 33
High-Efficiency, Low-I Voltage Management for Mobile Applications where V is the rising voltage at the top of R1 (typi- LBOR ) when LBO goes high, and V cally V IN voltage at the top of R1 when LBO goes low. ...
Page 34
High-Efficiency, Low-I Voltage Management for Mobile Applications 34 ______________________________________________________________________________________ , PMICs with Dynamic Q ...
Page 35
High-Efficiency, Low-I Voltage Management for Mobile Applications S Sr SDA t SU;STA SCL t HD;STA Figure 8. START and STOP Conditions START and STOP Conditions When the serial interface is inactive, SDA and SCL idle high. A master device initiates ...
Page 36
High-Efficiency, Low-I Voltage Management for Mobile Applications Table 10. DVM Voltage-Change Register (VCC1, 0x20) REGISTER REGISTER ADDRESS NAME 0x20 VCC1 The MAX8660/MAX8661 are write-only devices and recognize the “write byte” protocol as defined in the SMBus specification and shown in ...
Page 37
High-Efficiency, Low-I Voltage Management for Mobile Applications Table 11. Serial Codes for V3 ( VCC_APPS) and V4 ( VCC_SRAM ) Output Voltages REGISTER REGISTER DATA ADDRESS NAME BYTE 0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B ...
Page 38
High-Efficiency, Low-I Voltage Management for Mobile Applications LEGEND MASTER TO SLAVE SLAVE TO MASTER A. WRITING TO A SINGLE REGISTER WITH THE “WRITE BYTE” PROTOCOL SLAVE ADDRESS 0 R/W B. WRITING TO MULTIPLE REGISTERS WITH THE ...
Page 39
High-Efficiency, Low-I Voltage Management for Mobile Applications inductance values than L can be used to obtain IDEAL higher output current, but typically require physically larger inductor size. Refer to the MAX8660 EV kit data sheet for specific inductor recommendations. Input ...
Page 40
High-Efficiency, Low-I Voltage Management for Mobile Applications Conservative designers can choose to use the mini- mums for and L, however statistically rare LIM for all three of these parameters the minimum value ...
Page 41
High-Efficiency, Low-I Voltage Management for Mobile Applications Package Marking TOP VIEW 8660E 8660AE TLyww TLyww + aaaa + aaaa “yww” date code. “aaaa” assembly code. + Denotes lead-free packaging and marks pin 1 location. ______________________________________________________________________________________ , ...
Page 42
High-Efficiency, Low-I Voltage Management for Mobile Applications For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different ...
Page 43
High-Efficiency, Low-I Voltage Management for Mobile Applications For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different ...
Page 44
... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 44 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2010 Maxim Integrated Products ...