MAX8620YETD+T Maxim Integrated Products, MAX8620YETD+T Datasheet - Page 10

• Manufacturer Part Number: MAX8620YETD+T
• Description: IC UPMIC FOR MPU 14-TDFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8620YETD+T

• Applications: Micro-Power Management Integrated Circuit (UPMIC), DSPs
• Voltage - Input: 2.7 ~ 5.5 V
• Number Of Outputs: 3
• Voltage - Output: 0.6 ~ 3.3 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 14-TDFN Exposed Pad
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 45 C
• Output Current: 500 mA
• Output Voltage: 0.6 V to 3.3 V
• Supply Current: 115 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

µPMIC for Microprocessors or DSPs
in Portable Equipment
As shown in
and OUT2, are set according to the logic states of
SEL1 and SEL2. SEL1 and SEL2 are trilevel inputs: IN1,
open, and GND. The input voltage, V
dropout voltage (V
and OUT2 voltages.
Drive PWR_ON low to place the MAX8620Y in power-
down mode and reduce supply current to 5.5µA (typ).
Connect PWR_ON to IN1 = IN2 or logic-high to enable
the MAX8620Y. EN2 enables and disables OUT2 when
Figure 3. Linear-Regulator Functional Diagram
10
PWR_ON
HF_PWR
______________________________________________________________________________________
GND
EN2
IN1
BP
MAX8620Y
Table 1, the LDO output voltages, OUT1
Power-Enable Input (PWR_ON)
LDO THERMAL
SENSOR
DO
ON/OFF
LOGIC
) greater than the selected OUT1
Selection (SEL1, SEL2)
LDO Output-Voltage
1.25V
REF
IN1
, must be a
REGULATION
87%
ERROR-
ERROR-
AMP 1
AMP 2
PWR_ON is high (Table 2). OUT1, OUT2, and OUT3 are
all disabled when PWR_ON is low. HF_PWR can tem-
porarily bring the MAX8620 out of power-down mode
when PWR_ON is low (see the HF_PWR section). In
power-down, the control circuitry, internal-switching p-
channel MOSFET, and the internal synchronous rectifier
(n-channel MOSFET) turn off, and LX becomes high
impedance. In addition, both LDOs are disabled.
Drive EN2 low to enable OUT2. Drive EN2 high to dis-
able OUT2. If the MAX8620Y is placed into power-
down using PWR_ON (PWR_ON = low), OUT2 does not
power regardless of the status of EN2 (Table 2).
POK
MOS DRIVER
MOS DRIVER
WITH I
WITH I
LIMIT
LIMIT
TIMER
OUT2 Enable ( EN2 )
P
P
OUT2
OUT1
RESET