MAX8890ETCDDD+ Maxim Integrated Products, MAX8890ETCDDD+ Datasheet - Page 8

• Manufacturer Part Number: MAX8890ETCDDD+
• Description: IC POWER MANAGE CELL 12-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8890ETCDDD+

• Applications: Handheld/Mobile Devices
• Current - Supply: 180µA
• Voltage - Supply: 2.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 12-TQFN Exposed Pad
• Product: Charge Management
• Battery Type: Li-Ion, Li-Polymer
• Operating Supply Voltage: 2.5 V to 5.5 V
• Supply Current: 180 uA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Charge Safety Timers: No
• Mounting Style: SMD/SMT
• Temperature Monitoring: No
• Uvlo Start Threshold: 2.25 V
• Uvlo Stop Threshold: 2.25 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Integrated Cellular RF-Section
Power-Management IC
Figure 2. Functional Diagram
If any one of the three low-dropout linear regulators
(LDOs) is enabled, the internal 1.25V reference powers
up. Therefore, all three LDOs must be disabled to shut
down the internal reference, reducing the supply cur-
rent to 0.01µA.
Pull EN_ low to enter shutdown. When any one of the
linear regulators is shutdown, the corresponding
MAX8890 output disconnects from the corresponding
input, and the output discharges through an internal
8
_______________________________________________________________________________________
EN1
EN2
EN3
IN1
IN2
IN3
R
SENSE
CURRENT
LIMIT
THERMAL
IN1
SHDN
Enable
LINEAR REGULATOR #2
LINEAR REGULATOR #3
LINEAR REGULATOR #1
CIRCUITRY
STARTUP
CONTROL
LOCIC
5k
rate at which V
Connect EN_ to IN_ for normal operation. EN_ can be
pulled as high as 6V, regardless of the input and output
voltages.
Thermal-overload protection limits the MAX8890’s total
power dissipation in the event of fault conditions. Each
linear regulator has its own thermal-shutdown circuitry.
resistor. The capacitance and load determine the
AMPLIFIER
ERROR
OUT
Thermal-Overload Protection
_ decays. Do not leave EN_ floating.
1.25V
REF
OUT1
BP
GND
OUT2
OUT3